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131-413: A botanical garden or botanic garden is a garden with a documented collection of living plants for the purpose of scientific research, conservation, display, and education. It is their mandate as a botanical garden that plants are labelled with their botanical names . It may contain specialist plant collections such as cacti and other succulent plants , herb gardens , plants from particular parts of

262-468: A chromosome number of x=13, fruit that has a septicidal capsule , an ovary that is superior (or nearly so), stamens that have no appendages, and agglutinate (clumped) pollen . Rhododendron is the largest genus in the family Ericaceae , with over 1,000 species, (though estimates vary from 850 to 1,200) and is morphologically diverse. Consequently, the taxonomy has been historically complex. Although Rhododendrons had been known since

393-431: A cladistic analysis. They confirmed that the genus Rhododendron was monophyletic , with subgenus Therorhodion in the basal position , consistent with the matK studies. Following publication of the studies of Goetsch et al. (2005) with RPB2 , there began an ongoing realignment of species and groups within the genus, based on evolutionary relationships. Their work was more supportive of Sleumer's original system than

524-452: A sister to all other rhododendrons. The small polyphyletic subgenera Pentanthera and Azaleastrum were divided between two clades. The four sections of Pentanthera between clades B and C , with two each, while Azaleastrum had one section in each of A and C . Thus subgenera Azaleastrum and Pentanthera needed to be disassembled, and Rhododendron , Hymenanthes and Tsutsusi correspondingly expanded. In addition to

655-491: A botanical garden is defined by its scientific or academic connection, then the first true botanical gardens were established with the revival of learning that occurred in the European Renaissance . These were secular gardens attached to universities and medical schools, used as resources for teaching and research. The superintendents of these gardens were often professors of botany with international reputations,

786-549: A complement to home or architecture, but conceived as independent spaces, arranged to grow and display flowers and ornamental plants. Gardeners demonstrated their artistry in knot gardens , with complex arrangements most commonly included interwoven box hedges , and less commonly fragrant herbs like rosemary . Sanded paths run between the hedgings of open knots whereas closed knots were filled with single colored flowers. The knot and parterre gardens were always placed on level ground, and elevated areas reserved for terraces from which

917-403: A department of an educational institution, it may be related to a teaching program. In any case, it exists for scientific ends and is not to be restricted or diverted by other demands. It is not merely a landscaped or ornamental garden, although it may be artistic, nor is it an experiment station or yet a park with labels on the plants. The essential element is the intention of the enterprise, which

1048-526: A factor that probably contributed to the creation of botany as an independent discipline rather than a descriptive adjunct to medicine. The botanical gardens of Southern Europe were associated with university faculties of medicine and were founded in Italy at Orto botanico di Pisa (1544), Orto botanico di Padova (1545), Orto Botanico di Firenze (1545), Orto Botanico dell'Università di Pavia (1558) and Orto Botanico dell'Università di Bologna (1568). Here

1179-482: A few significant gardens were found in Britain which were developed under the influence of the continent. Britain's homegrown domestic gardening traditions were mostly practical in purpose, rather than aesthetic, unlike the grand gardens found mostly on castle grounds, and less commonly in universities. Tudor Gardens emphasized contrast rather than transitions, distinguished by color and illusion. They were not intended as

1310-540: A hierarchy of subgenus, section, subsection, and species. Terminology from the Sleumer (1949) system is frequently found in older literature, with five subgenera and is as follows; In the later traditional classification, attributed to Chamberlain (1996), and as used by horticulturalists and the American Rhododendron Society , Rhododendron has eight subgenera based on morphology , namely

1441-623: A knowledge and experience of using plants. Some professional garden designers are also landscape architects , a more formal level of training that usually requires an advanced degree and often an occupational license . Elements of garden design include the layout of hard landscape, such as paths, rockeries, walls, water features, sitting areas and decking, as well as the plants themselves, with consideration for their horticultural requirements, their season-to-season appearance, lifespan, growth habit , size, speed of growth, and combinations with other plants and landscape features. Most gardens consist of

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1572-909: A lesser degree in the Mountainous areas of North America and Western Eurasia . Subgenus Tsutsusi is found in the maritime regions of East Asia (Japan, Korea, Taiwan, East China ), but not in North America or Eurasia. In the United States, native Rhododendron mostly occur in lowland and montane forests in the Pacific Northwest , California , the Northeast , and the Appalachian Mountains . Rhododendron ponticum has become invasive in Ireland and

1703-612: A mixture of natural and constructed elements, although even very 'natural' gardens are always an inherently artificial creation. Natural elements present in a garden principally comprise flora (such as trees and weeds ), fauna (such as arthropods and birds), soil, water, air and light. Constructed elements include not only paths, patios , decking, sculptures, drainage systems, lights and buildings (such as sheds , gazebos , pergolas and follies ), but also living constructions such as flower beds , ponds and lawns . Garden needs of maintenance are also taken into consideration. Including

1834-419: A new subgenus was created by elevating subgenus Azaleastrum section Choniastrum to subgenus rank. Subgenus Pentanthera (deciduous azaleas) with its four sections was dismembered by eliminating two sections and redistributing the other two between the existing subgenera in clades B ( Hymenanthes ) and C ( Azaleastrum ), although the name was retained in section Pentanthera (14 species) which

1965-537: A period of prosperity when the city was a trading centre for the Dutch East India Company . Other gardens were constructed in Brazil ( Rio de Janeiro Botanical Garden , 1808), Sri Lanka ( Botanic Gardens of Peradeniya , 1821 and on a site dating back to 1371), Indonesia ( Bogor Botanical Gardens , 1817 and Kebun Raya Cibodas , 1852), and Singapore ( Singapore Botanical Gardens , 1822). These had

2096-534: A physic garden, and a viridarium or orchard. These gardens were probably given impetus when Charlemagne issued a capitulary , the Capitulary de Villis, which listed 73 herbs to be used in the physic gardens of his dominions. Many of these were found in British gardens even though they only occurred naturally in continental Europe, demonstrating earlier plant introduction. Pope Nicholas V set aside part of

2227-607: A profound effect on the economy of the countries, especially in relation to the foods and medicines introduced. The importation of rubber trees to the Singapore Botanic Garden initiated the important rubber industry of the Malay Peninsula . At this time also, teak and tea were introduced to India and breadfruit , pepper and starfruit to the Caribbean. Included in the charter of these gardens

2358-413: A single section, and some sections only a single subsection. Shown here is the traditional classification, with species number after Chamberlain (1996), but this scheme is undergoing constant revision. Revisions by Goetsch et al. (2005) and by Craven et al. (2008) shown in ( parenthetical italics ). Older ranks such as Series (groups of species) are no longer used but may be found in the literature, but

2489-758: A small enclosed area of land, usually adjoining a building. This would be referred to as a yard in American English . A garden can have aesthetic , functional, and recreational uses: The earliest recorded Chinese gardens were created in the valley of the Yellow River , during the Shang dynasty (1600–1046 BC). These gardens were large enclosed parks where the kings and nobles hunted game, or where fruit and vegetables were grown. Early inscriptions from this period, carved on tortoise shells, have three Chinese characters for garden, you , pu and yuan . You

2620-418: A subgenus of Rhododendron . In 1987 Spethmann, adding phytochemical features proposed a system with fifteen subgenera grouped into three 'chorus' subgenera. A number of closely related genera had been included together with Rhododendron in a former tribe, Rhodoreae. These have been progressively incorporated into Rhododendron . Chamberlain and Rae moved the monotypic section Tsusiopsis together with

2751-635: A symbol for a plantation or a pomegranate tree. A famous royal garden of the late Shang dynasty was the Terrace, Pond and Park of the Spirit ( Lingtai, Lingzhao Lingyou ) built by King Wenwang west of his capital city, Yin . The park was described in the Classic of Poetry this way: Another early royal garden was Shaqui , or the Dunes of Sand , built by the last Shang ruler, King Zhou (1075–1046 BC). It

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2882-456: A wide influence on both botany and horticulture, as plants poured into it from around the world. The garden's golden age came in the 18th century, when it became the world's most richly stocked botanical garden. Its seed-exchange programme was established in 1682 and still continues today. With the increase in maritime trade , ever more plants were being brought back to Europe as trophies from distant lands, and these were triumphantly displayed in

3013-462: A winding stream". Korean gardens are a type of garden described as being natural, informal, simple and unforced, seeking to merge with the natural world. They have a history that goes back more than two thousand years, but are little known in the west. The oldest records date to the Three Kingdoms period (57 BC – 668 AD) when architecture and palace gardens showed a development noted in

3144-468: A year. Historically, botanical gardens exchanged plants through the publication of seed lists (these were called Latin : Indices Seminae in the 18th century). This was a means of transferring both plants and information between botanical gardens. This system continues today, although the possibility of genetic piracy and the transmission of invasive species has received greater attention in recent times. The International Association of Botanic Gardens

3275-472: Is a genus of shrubs and small to (rarely) large trees , the smallest species growing to 10–100 cm (4–40 in) tall, and the largest, R. protistum var. giganteum , reported to 30 m (100 ft) tall. The leaves are spirally arranged; leaf size can range from 1–2 cm (0.4–0.8 in) to over 50 cm (20 in), exceptionally 100 cm (40 in) in R. sinogrande . They may be either evergreen or deciduous . In some species,

3406-512: Is a residential or public garden, but the term garden has traditionally been a more general one. Zoos , which display wild animals in simulated natural habitats, were formerly called zoological gardens. Western gardens are almost universally based on plants, with garden , which etymologically implies enclosure , often signifying a shortened form of botanical garden . Some traditional types of eastern gardens, such as Zen gardens , however, use plants sparsely or not at all. Landscape gardens, on

3537-515: Is a very large genus of about 1,024 species of woody plants and in the heath family (Ericaceae). They can be either evergreen or deciduous . Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia. It is the national flower of Nepal , the state flower of Washington and West Virginia in

3668-487: Is closely linked to the history of botany itself. The botanical gardens of the 16th and 17th centuries were medicinal gardens, but the idea of a botanical garden changed to encompass displays of the beautiful, strange, new and sometimes economically important plant trophies being returned from the European colonies and other distant lands. Later, in the 18th century, they became more educational in function, demonstrating

3799-521: Is inside the Parque La Carolina is a 165.5-acre (670,000 m) park in the centre of the Quito central business district , bordered by the avenues Río Amazonas, de los Shyris, Naciones Unidas, Eloy Alfaro, and de la República. The botanical garden of Quito is a park, a botanical garden, an arboretum and greenhouses of 18,600 square meters that is planned to increase, maintain the plants of

3930-691: Is located at Bolsover Castle in Derbyshire , but is too simple to attract much interest. During the reign of Charles II , many new Baroque style country houses were built; while in England Oliver Cromwell sought to destroy many Tudor, Jacobean and Caroline style gardens. Garden design is the process of creating plans for the layout and planting of gardens and landscapes. Gardens may be designed by garden owners themselves, or by professionals. Professional garden designers tend to be trained in principles of design and horticulture, and have

4061-667: Is respected worldwide for the published work of its scientists, the education of horticultural students, its public programmes, and the scientific underpinning of its horticulture. In 1728, John Bartram founded Bartram's Garden in Philadelphia , one of the continent's first botanical gardens. The garden is now managed as a historical site that includes a few original and many modern specimens as well as extensive archives and restored historical farm buildings. The large number of plants needing description were often listed in garden catalogues; and at this time Carl Linnaeus established

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4192-458: Is subgenus Rhododendron , containing nearly half of all known species and all of the lepidote species. For a comparison of the Sleumer and Chamberlain systems, see Goetsch et al. (2005) Table 1. This division was based on a number of what were thought to be key morphological characteristics. These included the position of the inflorescence buds (terminal or lateral), whether lepidote or elepidote, deciduousness of leaves, and whether new foliage

4323-1098: Is the acquisition and dissemination of botanical knowledge. A contemporary botanic garden is a strictly protected green area, where a managing organization creates landscaped gardens and holds documented collections of living plants and/or preserved plant accessions containing functional units of heredity of actual or potential value for purposes such as scientific research, education, public display, conservation, sustainable use, tourism and recreational activities, production of marketable plant-based products and services for improvement of human well-being. Worldwide, there are now about 1800 botanical gardens and arboreta in about 150 countries (mostly in temperate regions) of which about 550 are in Europe (150 of which are in Russia ), 200 in North America , and an increasing number in East Asia. These gardens attract about 300 million visitors

4454-546: Is to maintain documented collections of living plants for the purposes of scientific research, conservation, display, and education, although this will depend on the resources available and the special interests pursued at each particular garden. The staff will normally include botanists as well as gardeners. Many botanical gardens offer diploma/certificate programs in horticulture, botany and taxonomy. There are many internship opportunities offered to aspiring horticulturists. As well as opportunities for students/researchers to use

4585-670: The Botanical Garden of the University of Vienna and Hortus Botanicus Leiden . Many plants were being collected from the Near East , especially bulbous plants from Turkey . Clusius laid the foundations of Dutch tulip breeding and the bulb industry, and he helped create one of the earliest formal botanical gardens of Europe at Leyden where his detailed planting lists have made it possible to recreate this garden near its original site. The hortus medicus of Leyden in 1601

4716-517: The Château de Blois . Beginning in 1528, King Francis I created new gardens at the Château de Fontainebleau , which featured fountains, parterres, a forest of pine trees brought from Provence , and the first artificial grotto in France. The Château de Chenonceau had two gardens in the new style, one created for Diane de Poitiers in 1551, and a second for Catherine de' Medici in 1560. In 1536,

4847-820: The Global Strategy for Plant Conservation by producing a range resources and publications, and by organizing international conferences and conservation programs. Communication also happens regionally. In the United States, there is the American Public Gardens Association (formerly the American Association of Botanic Gardens and Arboreta), and in Australasia there is the Botanic Gardens of Australia and New Zealand (BGANZ). The history of botanical gardens

4978-842: The Government Hill in Victoria City , Hong Kong Island . The Koishikawa Botanical Garden in Tokyo, with its origin going back to the Tokugawa shogunate 's ownership, became in 1877 part of the Tokyo Imperial University . In Sri Lanka major botanical gardens include the Royal Botanic Gardens, Peradeniya (formally established in 1843), Hakgala Botanical Gardens (1861) and Henarathgoda Botanical Garden (1876). Jardín Botánico de Quito

5109-733: The Maritime Southeast Asia from their presumed Southeast Asian origin to Northern Australia, with 55 known species in Borneo and 164 in New Guinea . The species in New Guinea are native to subalpine moist grasslands at around 3,000 metres above sea level in the Central Highlands. Subgenera Rhododendron and Hymenanthes , together with section Pentanthera of subgenus Pentanthera are also represented to

5240-999: The Royal Tasmanian Botanical Gardens , 1818; the Royal Botanic Gardens, Melbourne , 1845; Adelaide Botanic Gardens , 1854; and Brisbane Botanic Gardens , 1855. These were established essentially as colonial gardens of economic botany and acclimatisation. The Auburn Botanical Gardens , 1977, located in Sydney's western suburbs , are one of the popular and diverse botanical gardens in the Greater Western Sydney area. Major botanical gardens in New Zealand include Dunedin Botanic Gardens , 1863; Christchurch Botanic Gardens , 1863; Ōtari-Wilton's Bush , 1926; and Wellington Botanic Gardens , 1868. Hong Kong Botanic Gardens , 1871 (renamed Hong Kong Zoological and Botanical Gardens in 1975), up from

5371-591: The Solomon Islands . The centres of diversity are in the Himalayas and Maritime Southeast Asia , with the greatest species diversity in the Sino-Himalayan region, Southwest China and northern Burma , from India – Himachal Pradesh , Uttarakhand , Sikkim and Nagaland to Nepal , northwestern Yunnan and western Sichuan and southeastern Tibet . Other significant areas of diversity are in

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5502-529: The United Kingdom . It is an introduced species, spreading in woodland areas and replacing the natural understory. R. ponticum is difficult to eradicate, as its roots can make new shoots. A number of insects either target rhododendrons or will opportunistically attack them. Rhododendron borers and various weevils are major pests of rhododendrons, and many caterpillars will preferentially devour them. Rhododendron species are used as food plants by

5633-452: The larvae ( caterpillars ) of some butterflies and moths ; see List of Lepidoptera that feed on rhododendrons. Major diseases include Phytophthora root rot, stem and twig fungal dieback. Rhododendron bud blast, a fungal condition that causes buds to turn brown and dry before they can open, is caused by the fungus Pycnostysanus azaleae , which may be brought to the plant by the rhododendron leafhopper, Graphocephala fennahi . In

5764-438: The nursery trade. Rhododendrons can be propagated by air layering or stem cuttings. They can self-propagate by sending up shoots from the roots. Sometimes an attached branch that has drooped to the ground will root in damp mulch, and the resulting rooted plant then can be cut off the parent rhododendron. They can also be reprodcued by seed dispersal - or by horticulturalists collecting the spent flower buds and saving ad drying

5895-409: The ornamental plants . Food-producing gardens are distinguished from farms by their smaller scale, more labor-intensive methods, and their purpose (enjoyment of a hobby or self-sustenance rather than producing for sale, as in a market garden ). Flower gardens combine plants of different heights, colors, textures, and fragrances to create interest and delight the senses. The most common form today

6026-557: The "Father of Botany". There is some debate among science historians whether this garden was ordered and scientific enough to be considered "botanical", and suggest it more appropriate to attribute the earliest known botanical garden in Europe to the botanist and pharmacologist Antonius Castor , mentioned by Pliny the Elder in the 1st century. Though these ancient gardens shared some of the characteristics of present-day botanical gardens,

6157-408: The 16th and 17th centuries, the first plants were being imported to these major Western European gardens from Eastern Europe and nearby Asia (which provided many bulbs ), and these found a place in the new gardens, where they could be conveniently studied by the plant experts of the day. For example, Asian introductions were described by Carolus Clusius (1526–1609), who was director, in turn, of

6288-587: The American Rhododendron Society still uses a similar device, called Alliances The system used by the World Flora Online as of December 2023 uses six subgenera, four of which are divided further: Species of the genus Rhododendron are widely distributed between latitudes 80°N and 20°S and are native to areas from North America to Europe , Russia , and Asia , and from Greenland to Queensland , Australia and

6419-628: The British and Dutch, in India , South-east Asia and the Caribbean . This was also the time of Sir Joseph Banks 's botanical collections during Captain James Cook 's circumnavigations of the planet and his explorations of Oceania , which formed the last phase of plant introduction on a grand scale. There are currently about 230 tropical botanical gardens with a concentration in southern and south-eastern Asia. The first botanical garden founded in

6550-616: The Chelsea Physic Garden to the Province of Georgia in 1732 and tea into India by Calcutta Botanic Garden. The transfer of germplasm between the temperate and tropical botanical gardens was undoubtedly responsible for the range of agricultural crops currently used in several regions of the tropics. The first botanical gardens in Australia were founded early in the 19th century. The Royal Botanic Gardens, Sydney , 1816;

6681-520: The Christian conquest in 1085 CE. Ibn Bassal then founded a garden in Seville, most of its plants being collected on a botanical expedition that included Morocco, Persia, Sicily, and Egypt. The medical school of Montpelier was also founded by Spanish Arab physicians, and by 1250 CE, it included a physic garden, but the site was not given botanic garden status until 1593. Botanical gardens, in

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6812-487: The Edinburgh group, placing more emphasis on the lepidote characteristics of the leaves, united all of the lepidote species into subgenus Rhododendron , including four of Sleumer's subgenera ( Rhododendron , Pseudoazalea , Pseudorhodorastrum , Rhodorastrum ). In 1986 Philipson & Philipson raised two sections of subgenus Aleastrum ( Mumeazalea , Candidastrum ) to subgenera, while reducing genus Therorhodion to

6943-594: The French gardening traditions of Andre Mollet and Jacques Boyceau , from which the latter wrote: "All things, however beautiful they may be chosen, will be defective if they are not ordered and placed in proper symmetry." A good example of the French formal style are the Tuileries gardens in Paris which were originally designed during the reign of King Henry II in the mid-sixteenth century. The gardens were redesigned into

7074-670: The Isle of Wight, and parts of Beth Chatto 's garden in Essex, Sticky Wicket garden in Dorset, and the Royal Horticultural Society's gardens at Harlow Carr and Hyde Hall . Rain gardens absorb rainfall falling onto nearby hard surfaces, rather than sending it into stormwater drains. Rhododendron Former subgenera : Rhododendron ( / ˌ r oʊ d ə ˈ d ɛ n d r ən / ; pl. : rhododendra )

7205-590: The Korean History of the Three Kingdoms . Gardening was not recognized as an art form in Europe until the mid 16th century when it entered the political discourse, as a symbol of the concept of the "ideal republic". Evoking utopian imagery of the Garden of Eden , a time of abundance and plenty where humans didn't know hunger or the conflicts that arose from property disputes. John Evelyn wrote in

7336-970: The Netherlands ( Hortus Botanicus Leiden , 1590; Hortus Botanicus (Amsterdam) , 1638), Germany ( Alter Botanischer Garten Tübingen , 1535; Leipzig Botanical Garden , 1580; Botanischer Garten Jena , 1586; Botanischer Garten Heidelberg , 1593; Herrenhäuser Gärten, Hanover , 1666; Botanischer Garten der Christian-Albrechts-Universität zu Kiel , 1669; Botanical Garden in Berlin , 1672), Switzerland ( Old Botanical Garden, Zürich , 1560; Basel , 1589); England ( University of Oxford Botanic Garden , 1621; Chelsea Physic Garden , 1673); Scotland ( Royal Botanic Garden Edinburgh , 1670); and in France ( Jardin des plantes de Montpellier , 1593; Faculty of Medicine Garden, Paris, 1597; Jardin des Plantes , Paris, 1635), Denmark ( University of Copenhagen Botanical Garden , 1600); Sweden ( Uppsala University , 1655). During

7467-742: The Royal Botanic Gardens, Kew (1759) and Orotava Acclimatization Garden (in Spanish) , Tenerife (1788) and the Real Jardín Botánico de Madrid (1755) were set up to cultivate new species returned from expeditions to the tropics; they also helped found new tropical botanical gardens. From the 1770s, following the example of the French and Spanish , amateur collectors were supplemented by official horticultural and botanical plant hunters. These botanical gardens were boosted by

7598-532: The Royal Garden set aside as a physic garden. William Aiton (1741–1793), the first curator, was taught by garden chronicler Philip Miller of the Chelsea Physic Garden whose son Charles became first curator of the original Cambridge Botanic Garden (1762). In 1759, the "Physick Garden" was planted, and by 1767, it was claimed that "the Exotick Garden is by far the richest in Europe". Gardens such as

7729-628: The Spanish invaders, not only with their appearance, but also because the indigenous Aztecs employed many more medicinal plants than did the classical world of Europe. Early medieval gardens in Islamic Spain resembled botanic gardens of the future, an example being the 11th-century Huerta del Rey garden of physician and author Ibn Wafid (999–1075 CE) in Toledo . This was later taken over by garden chronicler Ibn Bassal (fl. 1085 CE) until

7860-479: The UK the forerunner of the Rhododendron, Camellia and Magnolia Group (RCMG), The Rhododendron Society was founded in 1916. while in Scotland species are being conserved by the Rhododendron Species Conservation Group. Both species and hybrid rhododendrons (including azaleas) are used extensively as ornamental plants in landscaping in many parts of the world, including both temperate and subtemperate regions. Many species and cultivars are grown commercially for

7991-662: The United States, the state flower of Nagaland and Himachal Pradesh in India, the provincial flower of Jeju Province in South Korea, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Most species have brightly colored flowers which bloom from late winter through to early summer. Azaleas make up two subgenera of Rhododendron . They are distinguished from "true" rhododendrons by having only five anthers per flower. The common and generic name comes from Ancient Greek ῥόδον rhódon  'rose' and δένδρον déndron  'tree'. Rhododendron

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8122-429: The Vatican grounds in 1447, for a garden of medicinal plants that were used to promote the teaching of botany, and this was a forerunner to the University gardens at Padua and Pisa established in the 1540s. Certainly the founding of many early botanic gardens was instigated by members of the medical profession. In the 17th century, botanical gardens began their contribution to a deeper scientific curiosity about plants. If

8253-440: The architect Philibert de l'Orme , upon his return from Rome, created the gardens of the Château d'Anet following the Italian rules of proportion. The carefully prepared harmony of Anet, with its parterres and surfaces of water integrated with sections of greenery, became one of the earliest and most influential examples of the classic French garden. The French formal garden ( French : jardin à la française ) contrasted with

8384-404: The chronicle recorded: "The Emperor Keikō put a few carp into a pond, and rejoiced to see them morning and evening". The following year, "The Emperor launched a double-hulled boat in the pond of Ijishi at Ihare, and went aboard with his imperial concubine, and they feasted sumptuously together". In 486, the chronicle recorded that "The Emperor Kenzō went into the garden and feasted at the edge of

8515-442: The classification systems being developed by botanists in the gardens' museums and herbaria. Botanical gardens had now become scientific collections, as botanists published their descriptions of the new exotic plants, and these were also recorded for posterity in detail by superb botanical illustrations. In this century, botanical gardens effectively dropped their medicinal function in favour of scientific and aesthetic priorities, and

8646-405: The collection for their studies. The origin of modern botanical gardens is generally traced to the appointment of botany professors to the medical faculties of universities in 16th-century Renaissance Italy, which also entailed curating a medicinal garden . However, the objectives, content, and audience of today's botanic gardens more closely resembles that of the grandiose gardens of antiquity and

8777-575: The country (Ecuador is among the 17 richest countries in the world in the native species, a study on this matter). The Ecuadorian flora classified, determines the existence of 17,000 species) Garden Gardens often have design features including statuary, follies , pergolas , trellises , stumperies , dry creek beds, and water features such as fountains , ponds (with or without fish ), waterfalls or creeks. Some gardens are for ornamental purposes only, while others also produce food crops, sometimes in separate areas, or sometimes intermixed with

8908-1245: The death of living beings outside the garden, such as local species extinction by indiscriminate plant collectors ; and climate change caused by greenhouse gases produced by gardening. Gardeners can help to prevent climate change in many ways, including the use of trees, shrubs, ground cover plants and other perennial plants in their gardens, turning garden waste into soil organic matter instead of burning it, keeping soil and compost heaps aerated, avoiding peat, switching from power tools to hand tools or changing their garden design so that power tools are not needed, and using nitrogen-fixing plants instead of nitrogen fertiliser. Climate change will have many impacts on gardens; some studies suggest most of them will be negative. Gardens also contribute to climate change. Greenhouse gases can be produced by gardeners in many ways. The three main greenhouse gases are carbon dioxide , methane , and nitrous oxide . Gardeners produce carbon dioxide directly by overcultivating soil and destroying soil carbon , by burning garden waste on bonfires , by using power tools which burn fossil fuel or use electricity generated by fossil fuels , and by using peat . Gardeners produce methane by compacting

9039-572: The description of Rhododendron hirsutum by Charles de l'Écluse (Clusius) in the sixteenth century, and were known to classical writers (Magor 1990), and referred to as Chamaerhododendron (low-growing rose tree), the genus was first formally described by Linnaeus in his Species Plantarum in 1753. He listed five species under Rhododendron : R.   ferrugineum (the type species ), R. dauricum , R. hirsutum , R. chamaecistus (now Rhodothamnus chamaecistus (L.) Rchb.) and R. maximum . At that time he considered

9170-430: The design principles of the English landscape garden ( French : jardin à l'anglaise ) namely, to "force nature" instead of leaving it undisturbed. Typical French formal gardens had "parterres, geometrical shapes and neatly clipped topiary", in contrast to the English style of garden in which "plants and shrubs seem to grow naturally without artifice." By the mid-17th century axial symmetry had ascended to prominence in

9301-516: The desired stylistic genres, and the way the garden space will connect to the home or other structures in the surrounding areas. All of these considerations are subject to the budget limitations. Budget limitations can be addressed by a simpler garden style with fewer plants and less costly hard landscape materials, seeds rather than sod for lawns, and plants that grow quickly; alternatively, garden owners may choose to create their garden over time, area by area. Gardeners may cause environmental damage by

9432-508: The early 17th century, "there is not a more laborious life then is that of a good Gard'ners; but a labour full of tranquility and satisfaction; Natural and Instructive, and such as (if any) contributes to Piety and Contemplation." During the era of Enclosures , the agrarian collectivism of the feudal age was idealized in literary "fantasies of liberating regression to garden and wilderness". Following his campaign in Italy in 1495, where he saw

9563-480: The educational garden of Theophrastus in the Lyceum of ancient Athens. The early concern with medicinal plants changed in the 17th century to an interest in the new plant imports from explorations outside Europe as botany gradually established its independence from medicine. In the 18th century, systems of nomenclature and classification were devised by botanists working in the herbaria and universities associated with

9694-542: The end of the 18th century, Kew, under the directorship of Sir Joseph Banks , enjoyed a golden age of plant hunting, sending out collectors to the South African Cape , Australia , Chile , China , Ceylon , Brazil , and elsewhere, and acting as "the great botanical exchange house of the British Empire ". From its earliest days to the present, Kew has in many ways exemplified botanic garden ideals, and

9825-454: The flora being sent back to Europe from various European colonies around the globe . At this time, British horticulturalists were importing many woody plants from Britain's colonies in North America , and the popularity of horticulture had increased enormously, encouraged by the horticultural and botanical collecting expeditions overseas fostered by the directorship of Sir William Jackson Hooker and his keen interest in economic botany . At

9956-504: The forerunners of modern botanical gardens are generally regarded as being the medieval monastic physic gardens that originated after the decline of the Roman Empire at the time of Emperor Charlemagne (742–789 CE). These contained a hortus , a garden used mostly for vegetables, and another section set aside for specially labelled medicinal plants and this was called the herbularis or hortus medicus —more generally known as

10087-593: The formal French style for the Sun King Louis XIV . The gardens were ordered into symmetrical lines: long rows of elm or chestnut trees, clipped hedgerows, along with parterres, "reflect[ing] the orderly triumph of man's will over nature." The French landscape garden was influenced by the English landscape garden and gained prominence in the late eighteenth century. Before the Grand Manner era,

10218-493: The gardens and castles of Naples, King Charles VIII brought Italian craftsmen and garden designers , such as Pacello da Mercogliano , from Naples and ordered the construction of Italian-style gardens at his residence at the Château d'Amboise and at Château Gaillard, another private résidence in Amboise. His successor Henry II , who had also travelled to Italy and had met Leonardo da Vinci , created an Italian garden nearby at

10349-434: The gardens, these systems often being displayed in the gardens as educational "order beds ". With the rapid expansion of European colonies around the globe in the late 18th century, botanic gardens were established in the tropics, and economic botany became a focus with the hub at the Royal Botanic Gardens, Kew , near London. Over the years, botanical gardens, as cultural and scientific organisations, have responded to

10480-561: The genus divided into eight sections. Of these Tsutsutsi ( Tsutsusi ), Pentanthera , Pogonanthum , Ponticum and Rhodora are still used, the other sections being Lepipherum , Booram , and Chamaecistus . This structure largely survived till recently (2004), following which the development of molecular phylogeny led to major re-examinations of traditional morphological classifications, although other authors such as Candolle, who described six sections, used slightly different numeration. Soon, as more species became available in

10611-425: The heath complex in oak-heath forests in eastern North America. They have frequently been divided based on the presence or absence of scales on the abaxial (lower) leaf surface ( lepidote or elepidote). These scales, unique to subgenus Rhododendron , are modified hairs consisting of a polygonal scale attached by a stalk. Rhododendron are characterised by having inflorescences with scarious (dry) perulae ,

10742-488: The interests of botany and horticulture . Nowadays, most botanical gardens display a mix of the themes mentioned and more; having a strong connection with the general public, there is the opportunity to provide visitors with information relating to the environmental issues being faced at the start of the 21st century, especially those relating to plant conservation and sustainability . The "New Royal Horticultural Society Dictionary of Gardening" (1999) points out that among

10873-557: The intricacy of the gardens could be viewed. Jacobean gardens were described as "a delightful confusion" by Henry Wotton in 1624. Under the influence of the Italian Renaissance , Caroline gardens began to shed some of the chaos of earlier designs, marking the beginning of a trends towards symmetrical unified designs that took the building architecture into account, and featuring an elevated terrace from which home and garden could be viewed. The only surviving Caroline garden

11004-520: The later modifications introduced by Chamberlain et al. . The major finding of Goetsch and colleagues was that all species examined (except R. camtschaticum , subgenus Therorhodion ) formed three major clades which they labelled A , B , and C , with the subgenera Rhododendron and Hymenanthes as monophyletic groups nested within clades A and B , respectively. By contrast subgenera Azaleastrum and Pentanthera were polyphyletic , while R. camtschaticum appeared as

11135-597: The latest plant classification systems devised by botanists working in the associated herbaria as they tried to order these new treasures. Then, in the 19th and 20th centuries, the trend was towards a combination of specialist and eclectic collections demonstrating many aspects of both horticulture and botany. The idea of "scientific" gardens used specifically for the study of plants dates back to antiquity. Near-eastern royal gardens set aside for economic use or display and containing at least some plants gained by special collecting trips or military campaigns abroad, are known from

11266-508: The modern sense, developed from physic gardens , whose main purpose was to cultivate herbs for medical use as well as research and experimentation. Such gardens have a long history. In Europe, for example, Aristotle (384 BCE – 322 BCE) is said to have had a physic garden in the Lyceum at Athens, which was used for educational purposes and for the study of botany, and this was inherited, or possibly set up, by his pupil Theophrastus ,

11397-492: The monotypic genus Tsusiophyllum into section Tsutsusi , while Kron & Judd reduced genus Ledum to a subsection of section Rhododendron . Then Judd & Kron moved two species ( R.   schlippenbachii and R.   quinquefolium ) from section Brachybachii , subgenus Tsutsusi and two from section Rhodora , subgenus Pentanthera ( R. albrechtii , R. pentaphyllum ) into section Sciadorhodion , subgenus Pentanthera . Finally Chamberlain brought

11528-574: The mountains of Korea , Japan and Taiwan . More than 90% of Rhododendron sensu Chamberlain belong to the Asian subgenera Rhododendron , Hymenanthes and section Tsutsusi . Of the first two of these, the species are predominantly found in the area of the Himalayas and Southwest China (Sino-Himalayan Region). The 300 tropical species within the Vireya section of subgenus Rhododendron occupy

11659-415: The new section Tsutsusi , subgenus Azaleastrum . Genus Menziesa (9 species) was also added to section Sciadorhodion . The remaining small subgenus Therorhodion with its two species was left intact. Thus two subgenera, Hymenanthes and Azaleastrum were expanded at the expense of four subgenera that were eliminated, although Azaleastrum lost one section ( Choniastrum ) as a new subgenus, since it

11790-428: The nineteenth century so did a better understanding of the characteristics necessary for the major divisions. Chief amongst these were Maximovicz 's Rhododendreae Asiae Orientali and Planchon . Maximovicz used flower bud position and its relationship with leaf buds to create eight "Sections". Bentham and Hooker used a similar scheme, but called the divisions "Series". It was not until 1893 that Koehne appreciated

11921-980: The other hand, such as the English landscape gardens first developed in the 18th century, may omit flowers altogether. Landscape architecture is a related professional activity with landscape architects tending to engage in design at many scales and working on both public and private projects. The etymology of the word gardening refers to enclosure : it is from Middle English gardin , from Anglo-French gardin , jardin , of Germanic origin; akin to Old High German gard , gart , an enclosure or compound, as in Stuttgart . See Grad (Slavic settlement) for more complete etymology. The words yard , court , and Latin hortus (meaning "garden", hence horticulture and orchard), are cognates—all referring to an enclosed space. The term "garden" in British English refers to

12052-607: The park in the Vana-krida chapter. Shilparatna , a text from the sixteenth century, states that flower gardens or public parks should be located in the northern portion of a town. The earliest recorded Japanese gardens were the pleasure gardens of the Emperors and nobles. They were mentioned in several brief passages of the Nihon Shoki , the first chronicle of Japanese history, published in 720 CE. In spring 74 CE,

12183-668: The physicians (referred to in English as apothecaries ) delivered lectures on the Mediterranean "simples" or " officinals " that were being cultivated in the grounds. Student education was no doubt stimulated by the relatively recent advent of printing and the publication of the first herbals. All of these botanical gardens still exist, mostly in their original locations. The tradition of these Italian gardens passed into Spain Botanical Garden of Valencia , 1567) and Northern Europe , where similar gardens were established in

12314-475: The presence of scales (lepidote), deciduousness of leaves, and the floral and vegetative branching patterns, after Sleumer (1980). These consist of four large and four small subgenera. The first two subgenera ( Rhododendron and Hymenanthes ) represent the species commonly considered as 'Rhododendrons'. The next two smaller subgenera ( Pentanthera and Tsutsusi ) represent the 'Azaleas'. The remaining four subgenera contain very few species. The largest of these

12445-445: The private estates of the wealthy, in commercial nurseries , and in the public botanical gardens. Heated conservatories called " orangeries ", such as the one at Kew, became a feature of many botanical gardens. Industrial expansion in Europe and North America resulted in new building skills, so plants sensitive to cold were kept over winter in progressively elaborate and expensive heated conservatories and glasshouses. The 18th century

12576-556: The public for the purposes of recreation, education and research." The term tends to be used somewhat differently in different parts of the world. For example a large woodland garden with a good collection of rhododendron and other flowering tree and shrub species is very likely to present itself as a "botanical garden" if it is located in the US, but very unlikely to do so if in the UK (unless it also contains other relevant features). Very few of

12707-822: The purposes of scientific research, conservation, display and education." The following definition was produced by staff of the Liberty Hyde Bailey Hortorium of Cornell University in 1976. It covers in some detail the many functions and activities generally associated with botanical gardens: A botanical garden is a controlled and staffed institution for the maintenance of a living collection of plants under scientific management for purposes of education and research, together with such libraries, herbaria, laboratories, and museums as are essential to its particular undertakings. Each botanical garden naturally develops its own special fields of interests depending on its personnel, location, extent, available funds, and

12838-519: The relationship of the flower buds to the leaf buds, habitat, flower structure, and whether the leaves were lepidote or non-lepidote. While Sleumer's work was widely accepted, many in the United States and the United Kingdom continued to use the simpler Balfourian system of the Edinburgh group. Sleumer's system underwent many revisions by others, predominantly the Edinburgh group in their continuing Royal Botanic Garden Edinburgh notes. Cullen of

12969-504: The roasted meat from the trees. Later Chinese philosophers and historians cited this garden as an example of decadence and bad taste. During the Spring and Autumn period (722–481 BC), in 535 BC, the Terrace of Shanghua , with lavishly decorated palaces, was built by King Jing of the Zhou dynasty . In 505 BC, an even more elaborate garden, the Terrace of Gusu , was begun. It was located on

13100-541: The rubber plant was introduced to Singapore. Especially in the tropics, the larger gardens were frequently associated with a herbarium and museum of economy. The Botanical Garden of Peradeniya had considerable influence on the development of agriculture in Ceylon where the Para rubber tree ( Hevea brasiliensis ) was introduced from Kew, which had itself imported the plant from South America . Other examples include cotton from

13231-739: The second millennium BCE in ancient Egypt , Mesopotamia , Crete , Mexico and China . In about 2800 BCE, the Chinese Emperor Shen Nung sent collectors to distant regions searching for plants with economic or medicinal value. It has also been suggested that the Spanish colonization of Mesoamerica influenced the history of the botanical garden as gardens in Tenochtitlan established by king Nezahualcoyotl , also gardens in Chalco (altépetl) and elsewhere, greatly impressed

13362-515: The side of a mountain, and included a series of terraces connected by galleries, along with a lake where boats in the form of blue dragons navigated. From the highest terrace, a view extended as far as Lake Tai , the Great Lake. Manasollasa is a twelfth century Sanskrit text that offers details on garden design and a variety of other subjects. Both public parks and woodland gardens are described, with about 40 types of trees recommended for

13493-606: The significance of scaling and hence the separation of lepidote and elepidote species. The large number of species that were available by the early twentieth century prompted a new approach when Balfour introduced the concept of grouping species into series . The Species of Rhododendron referred to this series concept as the Balfourian system. That system continued up to modern times in Davidian's four volume The Rhododendron Species . The next major attempt at classification

13624-427: The sites used for the UK's dispersed National Plant Collection , usually holding large collections of a particular taxonomic group, would call themselves "botanic gardens". This has been further reduced by Botanic Gardens Conservation International to the following definition which "encompasses the spirit of a true botanic garden": "A botanic garden is an institution holding documented collections of living plants for

13755-448: The soil and making it anaerobic, and by allowing their compost heaps to become compacted and anaerobic. Gardeners produce nitrous oxide by applying excess nitrogen fertiliser when plants are not actively growing so that the nitrogen in the fertiliser is converted by soil bacteria to nitrous oxide. Some gardeners manage their gardens without using any water from outside the garden. Examples in Britain include Ventnor Botanic Garden on

13886-404: The system of binomial nomenclature which greatly facilitated the listing process. Names of plants were authenticated by dried plant specimens mounted on card (a hortus siccus or garden of dried plants) that were stored in buildings called herbaria , these taxonomic research institutions being frequently associated with the botanical gardens, many of which by then had "order beds" to display

14017-416: The term "botanic garden" came to be more closely associated with the herbarium, library (and later laboratories) housed there than with the living collections – on which little research was undertaken. The late 18th and early 19th centuries were marked by the establishment of tropical botanical gardens as a tool of colonial expansion (for trade and commerce and, secondarily, science) mainly by

14148-400: The terms of its charter. It may include greenhouses, test grounds, an herbarium, an arboretum, and other departments. It maintains a scientific as well as a plant-growing staff, and publication is one of its major modes of expression. This broad outline is then expanded: The botanic garden may be an independent institution, a governmental operation, or affiliated to a college or university. If

14279-570: The then known six species of Azalea that he had described earlier in 1735 in his Systema Naturae as a separate genus. Linnaeus' six species of Azalea were Azalea indica , A. pontica , A. lutea , A. viscosa , A. lapponica and A. procumbens (now Kalmia procumbens ), which he distinguished from Rhododendron by having five stamens , as opposed to ten. As new species of what are now considered Rhododendron were discovered, they were assigned to separate genera if they seemed to differ significantly from

14410-418: The time or funds available for regular maintenance, (this can affect the choices of plants regarding speed of growth) spreading or self-seeding of the plants (annual or perennial), bloom-time, and many other characteristics. Garden design can be roughly divided into two groups, formal and naturalistic gardens. The most important consideration in any garden design is how the garden will be used, followed closely by

14541-847: The tropics was the Pamplemousses Botanical Garden in Mauritius , established in 1735 to provide food for ships using the port, but later trialling and distributing many plants of economic importance. This was followed by the West Indies ( Saint Vincent and the Grenadines Botanic Gardens , 1764) and in 1786 by the Acharya Jagadish Chandra Bose Botanical Garden in Calcutta , India founded during

14672-577: The two separate genera included under Rhododendron by Chamberlain ( Ledum , Tsusiophyllum ), Goetsch et al. . added Menziesia (clade C ). Despite a degree of paraphyly , the subgenus Rhododendron was otherwise untouched with regard to its three sections but four other subgenera were eliminated and one new subgenus created, leaving a total of five subgenera in all, from eight in Chamberlain's scheme. The discontinued subgenera are Pentanthera , Tsutsusi , Candidastrum and Mumeazalea , while

14803-414: The type species. For instance Rhodora (Linnaeus 1763) for Rhododendron canadense , Vireya ( Blume 1826) and Hymenanthes (Blume 1826) for Rhododendron metternichii , now R. degronianum . Meanwhile, other botanists such as Salisbury (1796) and Tate (1831) began to question the distinction between Azalea and Rhododendron , and finally in 1836, Azalea was incorporated into Rhododendron and

14934-552: The undersides of the leaves are covered with scales (lepidote) or hairs (indumentum). Some of the best known species are noted for their many clusters of large flowers. A recently discovered species in New Guinea has flowers up to six inches (fifteen centimeters) in width, the largest in the whole genus. The accompanying photograph shows it as having seven petals . There are alpine species with small flowers and small leaves, and tropical species such as section Vireya that often grow as epiphytes . Species in this genus may be part of

15065-519: The various kinds of organizations known as botanical gardens, there are many that are in modern times public gardens with little scientific activity, and it cited a tighter definition published by the World Wildlife Fund and IUCN when launching the "Botanic Gardens Conservation Strategy" in 1989: "A botanic garden is a garden containing scientifically ordered and maintained collections of plants, usually documented and labelled, and open to

15196-493: The various systems together in 1996, with 1,025 species divided into eight subgenera. Goetsch (2005) provides a comparison of the Sleumer and Chamberlain schemata (Table 1). Rhododendron Choniastrum Hymenanthes Azaleastrum Therorhodion The era of molecular analysis rather than descriptive features can be dated to the work of Kurashige (1988) and Kron (1997) who used matK sequencing . Later Gao et al. (2002) used ITS sequences to determine

15327-533: The way they garden, or they may enhance their local environment. Damage by gardeners can include direct destruction of natural habitats when houses and gardens are created; indirect habitat destruction and damage to provide garden materials such as peat , rock for rock gardens, and by the use of tapwater to irrigate gardens; the death of living beings in the garden itself, such as the killing not only of slugs and snails but also their predators such as hedgehogs and song thrushes by metaldehyde slug killer;

15458-696: The world, and so on; there may be glasshouses or shadehouses , again with special collections such as tropical plants , alpine plants , or other exotic plants that are not native to that region. Most are at least partly open to the public, and may offer guided tours, public programming such as workshops, courses, educational displays, art exhibitions , book rooms, open-air theatrical and musical performances, and other entertainment. Botanical gardens are often run by universities or other scientific research organizations, and often have associated herbaria and research programmes in plant taxonomy or some other aspect of botanical science. In principle, their role

15589-534: Was a distinct subclade in  A . In all, Hymenanthes increased from one to two sections, while Azaleastrum , by losing one section and gaining two increased from two to three sections. (See schemata under Subgenera .) Subsequent research has supported the revision by Goetsch, although has largely concentrated on further defining the phylogeny within the subdivisions. In 2011 the two species of Diplarche were also added to Rhododendron , incertae sedis . This genus has been progressively subdivided into

15720-437: Was a perfect square divided into quarters for the four continents, but by 1720, though, it was a rambling system of beds, struggling to contain the novelties rushing in, and it became better known as the hortus academicus . His Exoticorum libri decem (1605) is an important survey of exotic plants and animals that is still consulted today. The inclusion of new plant introductions in botanic gardens meant their scientific role

15851-448: Was a royal garden where birds and animals were kept, while pu was a garden for plants. During the Qin dynasty (221–206 BC), yuan became the character for all gardens. The old character for yuan is a small picture of a garden; it is enclosed in a square which can represent a wall, and has symbols which can represent the plan of a structure, a small square which can represent a pond, and

15982-583: Was by Sleumer who from 1934 began incorporating the Balfourian series into the older hierarchical structure of subgenera and sections, according to the International Code of Botanical Nomenclature , culminating in 1949 with his "Ein System der Gattung Rhododendron  L.", and subsequent refinements. Most of the Balfourian series are represented by Sleumer as subsections, though some appear as sections or even subgenera. Sleumer based his system on

16113-633: Was composed of an earth terrace, or tai , which served as an observation platform in the center of a large square park. It was described in one of the early classics of Chinese literature, the Records of the Grand Historian ( Shiji ). According to the Shiji , one of the most famous features of this garden was the Wine Pool and Meat Forest (酒池肉林). A large pool, big enough for several small boats,

16244-401: Was constructed on the palace grounds, with inner linings of polished oval shaped stones from the seashore. The pool was then filled with wine. A small island was constructed in the middle of the pool, where trees were planted, which had skewers of roasted meat hanging from their branches. King Zhou and his friends and concubines drifted in their boats, drinking the wine with their hands and eating

16375-402: Was derived from axils from previous year's shoots or the lowest scaly leaves. Following the cladistic analysis of Goetsch et al. (2005) this scheme was simplified, based on the discovery of three major clades (A, B, C) as follows. Clade A Clade B Clade C Sister taxon The larger subgenera are further subdivided into sections and subsections Some subgenera contain only

16506-555: Was formed in 1954 as a worldwide organisation affiliated to the International Union of Biological Sciences . More recently, coordination has also been provided by Botanic Gardens Conservation International (BGCI), which has the mission "To mobilise botanic gardens and engage partners in securing plant diversity for the well-being of people and the planet". BGCI has over 700 members – mostly botanic gardens – in 118 countries, and strongly supports

16637-643: Was marked by introductions from the Cape of South Africa – including ericas , geraniums , pelargoniums , succulents, and proteaceous plants – while the Dutch trade with the Dutch East Indies resulted in a golden era for the Leiden and Amsterdam botanical gardens and a boom in the construction of conservatories. The Royal Gardens at Kew were founded in 1759, initially as part of

16768-467: Was moved to subgenus Hymenanthes . Of the remaining three sections, monotypic Viscidula was discontinued by moving R.   nipponicum to Tsutsusi ( C ), while Rhodora (2 species) was itself polyphyletic and was broken up by moving R.   canadense to section Pentanthera ( B ) and R.   vaseyi to section Sciadorhodion , which then became a new section of subgenus Azaleastrum  ( C ). Subgenus Tsutsusi ( C )

16899-658: Was now widening, as botany gradually asserted its independence from medicine. In the mid to late 17th century, the Paris Jardin des Plantes was a centre of interest with the greatest number of new introductions to attract the public. In England , the Chelsea Physic Garden was founded in 1673 as the "Garden of the Society of Apothecaries". The Chelsea garden had heated greenhouses , and in 1723 appointed Philip Miller (1691–1771) as head gardener . He had

17030-411: Was reduced to section status retaining the name, and included in subgenus Azaleastrum . Of the three minor subgenera, all in C , two were discontinued. The single species of monotypic subgenus Candidastrum ( R.   albiflorum ) was moved to subgenus Azaleastrum , section Sciadorhodion . Similarly the single species in monotypic subgenus Mumeazalea ( R.   semibarbatum ) was placed in

17161-441: Was the investigation of the local flora for its economic potential to both the colonists and the local people. Many crop plants were introduced by or through these gardens – often in association with European botanical gardens such as Kew or Amsterdam – and included cloves , tea , coffee , breadfruit, cinchona , sugar , cotton , palm oil and Theobroma cacao (for chocolate). During these times,

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