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96-571: Opened in 1904, the Anna Scripps Whitcomb Conservatory is the oldest continually-running conservatory in the United States. It is named for Anna Scripps Whitcomb, who left her collection of 600 orchids to Detroit in 1955. The Belle Isle Conservatory, along with the neighboring Belle Isle Aquarium , was designed by the noted firm of George D. Mason and Albert Kahn, and built between 1902 and 1904. Kahn modeled

192-559: A Canadian Heritage River .   It is the only river in North America to have such dual designations. In 2001, the Wyandotte National Wildlife Refuge was absorbed into the larger Detroit River International Wildlife Refuge , a cooperative effort between the United States and Canada to preserve the area as an ecological refuge. The millions of dollars spent since that time to dredge pollutants out of

288-464: A carbohydrate energy source. The carbohydrate source can be combinations of discrete sugars or can be derived from other sources such as banana , pineapple , peach , or even tomato puree or coconut water . After the preparation of the agar medium, it is poured into test tubes or jars which are then autoclaved (or cooked in a pressure cooker) to sterilize the medium. After cooking, the medium begins to gel as it cools. The taxonomy of this family

384-478: A phylogenetic study showed strong statistical support for the following topology of the orchid tree , using 9 kb of plastid and nuclear DNA from 7 genes , a topology that was confirmed by a phylogenomic study in the same year. Apostasioideae Vanilloideae Detroit River The Detroit River is an international river in North America . The river, which forms part of

480-478: A river and a strait  — a strait being a narrow passageway connecting two large bodies of water, which is how the river earned its name from early French settlers. However, today, the Detroit River is rarely referred to as a strait, because bodies of water referred to as straits are typically much wider relative to their length. The river forms the southern portion of the waterway connecting Lake Huron to

576-401: A seta , knocking the pollinator off the flower. After pollination, the sepals and petals fade and wilt, but they usually remain attached to the ovary. In 2011, Bulbophyllum nocturnum was discovered to flower nocturnally. Some species, such as in the genera Phalaenopsis , Dendrobium , and Vanda , produce offshoots or plantlets formed from one of the nodes along the stem , through

672-480: A spur of the labellum ( 8 in the illustration above), or on the point of the sepals, or in the septa of the ovary, the most typical position amongst the Asparagales . In orchids that produce pollinia, pollination happens as some variant of the following sequence: when the pollinator enters into the flower, it touches a viscidium, which promptly sticks to its body, generally on the head or abdomen. While leaving

768-551: A velamen , has the function of absorbing humidity. It is made of dead cells and can have a silvery-grey, white or brown appearance. In some orchids, the velamen includes spongy and fibrous bodies near the passage cells, called tilosomes. The cells of the root epidermis grow at a right angle to the axis of the root to allow them to get a firm grasp on their support. Nutrients for epiphytic orchids mainly come from mineral dust, organic detritus, animal droppings and other substances collecting among on their supporting surfaces. The base of

864-570: A classical nude woman was originally installed to overlook a reflecting pool in the Grosse Pointe War Memorial . It was nicknamed "The Nude," and, in 2001, was believed to have been successfully stolen for display in some art collector's private cache. During a police diving exercise near a submerged Jeep , the statue was found in 2009, restored, and returned to the memorial. Anchors from the SS Greater Detroit,

960-478: A different species of bee, so as to enforce proper cross-pollination. A rare achlorophyllous saprophytic orchid growing entirely underground in Australia, Rhizanthella slateri , is never exposed to light, and depends on ants and other terrestrial insects to pollinate it. Catasetum , a genus discussed briefly by Darwin , actually launches its viscid pollinia with explosive force when an insect touches

1056-832: A key role in the merger. Kresge gave the four organizations $ 100,000, in 2009, and in 2010 another $ 100,000. Currently, there are five employees, one manager and a supervisor from the Michigan Department of Natural Resources that make up the Floriculture Unit at the Belle Isle Conservatory. The staff members are responsible for caring for all the plants in the Conservatory and the surrounding formal gardens. The Conservatory relies on volunteers for all its additional needs and workers. Orchidaceae Orchids are plants that belong to

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1152-639: A luxury steamship that toured the Detroit River from 1924 to 1950, and the famed SS Edmund Fitzgerald , a lake freighter that sank in a terrible 1975 storm, have notably both been recovered from the river. The 6,000-pound anchor of the SS Greater Detroit was raised in November 2016. It was installed at the Detroit/Wayne County Port Authority Building. The lost anchor of the SS Edmund Fitzgerald

1248-455: A semiterrestrial or rock-hugging (" lithophyte ") orchid, show a sparkling silver and gold veining on a light green background. The cordate leaves of Psychopsiella limminghei are light brownish-green with maroon-puce markings, created by flower pigments. The attractive mottle of the leaves of lady's slippers from tropical and subtropical Asia ( Paphiopedilum ), is caused by uneven distribution of chlorophyll. Also, Phalaenopsis schilleriana

1344-538: A single mass. Each time pollination succeeds, thousands of ovules can be fertilized. Pollinators are often visually attracted by the shape and colours of the labellum. However, some Bulbophyllum species attract male fruit flies ( Bactrocera and Zeugodacus spp.) solely via a floral chemical which simultaneously acts as a floral reward (e.g. methyl eugenol , raspberry ketone , or zingerone ) to perform pollination. The flowers may produce attractive odours. Although absent in most species, nectar may be produced in

1440-635: A sticky disc near the top of the column. Just below the pollinia is a second, larger sticky plate called the stigma . The complex mechanisms that orchids have evolved to achieve cross-pollination were investigated by Charles Darwin and described in Fertilisation of Orchids (1862). Orchids have developed highly specialized pollination systems, thus the chances of being pollinated are often scarce, so orchid flowers usually remain receptive for very long periods, rendering unpollinated flowers long-lasting in cultivation. Most orchids deliver pollen in

1536-418: Is a pastel pink orchid with leaves spotted dark green and light green. The jewel orchid ( Ludisia discolor ) is grown more for its colorful leaves than its white flowers. Some orchids, such as Dendrophylax lindenii (ghost orchid), Aphyllorchis and Taeniophyllum depend on their green roots for photosynthesis and lack normally developed leaves, as do all of the heterotrophic species. Orchids of

1632-417: Is achieved by removing the pollinia with a small instrument such as a toothpick from the pollen parent and transferring them to the seed parent. Some orchids mainly or totally rely on self-pollination , especially in colder regions where pollinators are particularly rare. The caudicles may dry up if the flower has not been visited by any pollinator, and the pollinia then fall directly on the stigma. Otherwise,

1728-420: Is currently "the oldest, continually operating conservatory in the United States." Soon after its opening, it became a popular attraction, reaching an annual average of 1.5 million visitors in the mid-1920s. In 1953, the original wooden frame of the central dome was replaced by one made of iron and aluminum; the operation cost circa $ 500,000. In April 1955 Anna Scripps Whitcomb gave her 600 orchids collection to

1824-708: Is divided into five distinct sections: the Palm house (inside the domed center), the Tropical house (South Wing), the Cactus house and Fernery (North Wing), and the Show house (East Wing). The main feature of the building is the 85 feet (26 m) high central dome, which houses palm trees and other tropical plants. The conservatory, originally known as the Horticultural Building, opened on August 18, 1904, and

1920-572: Is estimated walleye fishing alone brings in $ 1 million to the economy of communities along the lower Detroit River each spring. Other fish caught by recreational fisherman include white bass , bluegill , crappie , freshwater drum , smallmouth bass , northern pike and muskie . There are over 800,000 recreation boats in Michigan, and more than half of them are regularly used on or near the Detroit River. Popular river destinations in Detroit include

2016-564: Is four times longer than the Detroit River and contains most of the watershed. The only other major American tributary to the Detroit River is the much smaller Ecorse River . Tributaries on the Canadian side include Little River, Turkey Creek, and the River Canard . The discharge for the Detroit River is relatively high for a river of its size. The river's discharge averaged over the year is 5,300 m /s (190,000 cu ft/s), and

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2112-550: Is in constant flux, as new studies continue to clarify the relationships between species and groups of species, allowing more taxa at several ranks to be recognized. The Orchidaceae is currently placed in the order Asparagales by the APG III system of 2009. Five subfamilies are recognised. The cladogram below was made according to the APG system of 1998. It represents the view that most botanists had held up to that time. It

2208-592: Is often called a backbulb. Backbulbs still hold nutrition for the plant, but then a pseudobulb usually takes over, exploiting the last reserves accumulated in the backbulb, which eventually dies off, too. A pseudobulb typically lives for about five years. Orchids without noticeable pseudobulbs are also said to have growths, an individual component of a sympodial plant. Like most monocots , orchids generally have simple leaves with parallel veins , although some Vanilloideae have reticulate venation . Leaves may be ovate, lanceolate, or orbiculate, and very variable in size on

2304-520: Is on the banks of the Detroit River. According to a 2004 study, 150,000 jobs and $ 13 billion in annual production depend on the river crossings connecting Detroit to Windsor. In 2004, the American trade with Ontario alone was $ 407 billion, in which 28% ($ 113.3 billion) crossed the Detroit River. There are two automobile traffic routes that completely cross the river: the Detroit–Windsor tunnel and

2400-516: Is one of the two largest families of flowering plants, along with the Asteraceae . It contains about 28,000 currently accepted species distributed across 763 genera . The Orchidaceae family encompasses about 6–11% of all species of seed plants . The largest genera are Bulbophyllum (2,000 species), Epidendrum (1,500 species), Dendrobium (1,400 species) and Pleurothallis (1,000 species). It also includes Vanilla (the genus of

2496-482: Is relatively level, dropping only 3 feet (0.9 m) before entering Lake Erie at 571 feet (174 m). As the river contains no dams and no locks , it is easily navigable by even the smallest of vessels. The watershed basin for the Detroit River is approximately 700 square miles (1,800 km ). Since the river is fairly short, it has few tributaries, the largest being the River Rouge in Michigan; this

2592-412: Is sunken to provide cooler conditions and more humidity. Ferns such as the alsophila can be found here, as well as a small waterfall located in the center. The Show house changes its display many times throughout the year and is also used for the conservatory's many flower shows and special events. The perennial gardens are located outside to the north of the vestibule. The lily pond is located between

2688-419: Is used as a food reserve for wintry periods, and provides for the development of the other one, from which visible growth develops. In warm and constantly humid climates, many terrestrial orchids do not need pseudobulbs. Epiphytic orchids, those that grow upon a support, have modified aerial roots that can sometimes be a few meters long. In the older parts of the roots, a modified spongy epidermis , called

2784-618: The Detroit International Riverfront and Belle Isle Park  — both of which host events throughout the year. Several restaurants on the river have docks for boaters. Tour boats and dinner cruises travel through the sights of Detroit and the undeveloped islands downriver. Cruise ships support tourism on the Great Lakes and dock at the Port Detroit passenger terminal downtown. The iconic Renaissance Center

2880-754: The Detroit–Windsor Tunnel , and the Michigan Central Railway Tunnel connect the cities. The river's English name comes from the French Rivière du Détroit (translated as "River of the Strait"). The Detroit River has served an important role in the history of Detroit and Windsor, and is one of the world's busiest waterways. It is an important transportation route connecting Lake Michigan , Lake Huron , and Lake Superior to Lake Erie and eventually to Lake Ontario ,

2976-480: The North American fur trade intensified, European settlers expanded their trade westward into uncharted territories. French explorer Antoine Laumet de La Mothe, sieur de Cadillac sailed up the Detroit River on July 23, 1701. The next day, he established Fort Pontchartrain du Détroit , which developed as Detroit. The French named the river as Rivière Détroit . Détroit is French for " strait ". The river

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3072-553: The St. Lawrence Seaway and the Erie Canal . When Detroit underwent rapid industrialization at the turn of the 20th century, the Detroit River became notoriously polluted and toxic. Since the late 20th century, however, a vast restoration effort has been undertaken because of the river's ecological importance. In the early 21st century, the river today has a wide variety of economic and recreational uses. There are numerous islands in

3168-632: The St. Lawrence Seaway or the Erie Canal to New York City . At the beginning of the 20th century, the automotive industry boomed, and the many manufacturers imported abundant supplies of iron ore , sand, limestone and wood. The Detroit River provides substantial revenue for the local economies. A 1991 study showed $ 20.1 million came from sales related to waterfowl hunting along the Detroit River. The same year, bird watching, photography, and other non-consumptive uses of waterfowl contributed another $ 192.8 million to Michigan's economy. Local economies benefit through boating registrations and fishing licenses. It

3264-634: The U.S. Customs and Border Protection , and the Canadian side is secured by the Canada Border Services Agency ; all areas between the American ports of entry and on the American side of the river are secured by the United States Border Patrol . The Gordie Howe International Bridge is a new bridge project which began construction in 2019; it will directly connect Highway 401 in Canada to Interstate 75 in

3360-747: The War of 1812 , the Detroit River served as a major barrier between the American Michigan Territory and British Upper Canada , especially during the Battle of Fort Detroit in August 1812. Detroit briefly fell to the British. After the completion of the Erie Canal in 1817, which opened up easier travel to Lake Erie from the East Coast of the United States , connecting the Great Lakes to

3456-400: The family Orchidaceae ( / ˌ ɔːr k ɪ ˈ d eɪ s i . iː , - s i . aɪ / ), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan plants that are found in almost every habitat on Earth except glaciers . The world's richest diversity of orchid genera and species is found in the tropics . Orchidaceae

3552-454: The vanilla plant ), the type genus Orchis , and many commonly cultivated plants such as Phalaenopsis and Cattleya . Moreover, since the introduction of tropical species into cultivation in the 19th century, horticulturists have produced many hybrids and cultivars . Orchids are easily distinguished from other plants, as they share some very evident derived characteristics or synapomorphies . Among these are: bilateral symmetry of

3648-475: The 17th century. By the time the fur trade decreased, Michigan had begun to exploit the lumber -rich areas of Northern Michigan and the Upper Peninsula . Detroit turned into a major industrial region, largely because of the Detroit River. The only way a ship could travel out of the upper Great Lakes system was to travel down the Detroit River. From there, ships could travel anywhere in the world out of

3744-538: The British colonial government in Canada declared former slaves could not be extradited to be returned to their owners. With their freedom in Canada secured, crossing the Detroit River out of the United States became an imperative for escaping slaves. During the American Civil War (1861–1865), the Union feared the seceded Confederate States of America (CSA) would plan a northerly attack from Canada, which

3840-549: The Canadian border region also assisted Blacks hoping to flee from the U.S. once the Fugitive Slave Act was strengthened in 1850. Canada also granted legal immigration status to Blacks, while Mexico did not for many years. Individuals and organizations assisted escaping slaves hoping to cross the Detroit River from the United States into Canada. The Second Baptist Church of Detroit and First Baptist Church of Amherstburg coordinated ferrying thousands of Blacks across

3936-581: The Chinese fan palm ( Livistona chinensis ), the fishtail palm ( Caryota mitis ), the umbrella tree ( Schefflera actinophylla ) and the Canary Island date palm ( Phoenix canariensis ). When a tree reaches the top of the dome it must be cut down, as they cannot be pruned to height. The Tropical house, 70 °F, contains fruiting plants and trees such as the common fig , calamondin orange and bloodleaf banana, and tropical flowering plants such as

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4032-729: The Detroit River , and much of the lower portion of the river is part of the Detroit River International Wildlife Refuge . The portion of the river in the city of Detroit has been organized into the Detroit International Riverfront and the William G. Milliken State Park and Harbor . The Detroit River is designated both an American Heritage River and a Canadian Heritage River —the only river to have this dual designation. The Detroit River flows for 28  mi (45  km ) from Lake St. Clair to Lake Erie . By definition, this classifies it as both

4128-412: The Detroit River but the term "Downriver" refers broadly to the cluster of 18 suburban communities that lie to the southwest of the city of Detroit and to the west of the Detroit River. The Detroit River contains 31 charted islands. The majority of the islands are located on the American side of the river. Many of the islands are small and uninhabited, and none are divided by the international border, as

4224-470: The Detroit River has led to a remarkable restoration, although problems remain. Today, many species of native animals that had been driven out by human development are returning to the area. The river is home to a growing number of bird species such as eagles (including reintroduced bald eagles ), ospreys , and peregrine falcons . Large numbers of lake whitefish , sturgeon , silver bass , black bass , salmon , perch , and walleye are again thriving in

4320-428: The Detroit River into Canada, and Detroit's Colored Vigilant Committee assisted over 1,500 fugitives in crossing into Canada. Famous abolitionists and Underground Railroad conductors including George DeBaptiste and William Lambert worked individually and with these organizations to assist fleeing slaves and condemn slavery.   There was considerable transnational fluidity between the Canadian and American sides of

4416-409: The Detroit River is urbanized and, in some places, has been used for industrial purposes for more than 100 years. There has been excessive water pollution of the river from the long-term, unregulated dumping of chemicals, industrial waste, garbage, and sewage. Much of the Detroit River and its shoreline were polluted and unsafe for recreational use. Thousands of migrating birds died each year because of

4512-505: The Detroit River, and Lake Erie. Finally, a massive conservation effort was initiated to clean up the Detroit River. For years, the multi-million dollar cost of removing pollutants from the river and the political influence of nearby industries, hindered conservation efforts. In 1998, the Detroit River was designated as an American Heritage River by the US Environmental Protection Agency and in 2001 as

4608-570: The Detroit River. The French later claimed the area for New France . The famed sailing ship Le Griffon reached the mouth of the Detroit River in mid-August 1679 on its maiden voyage through the Great Lakes . Later, when the French began settling in the area, they navigated the river using canoes made of birch or elm bark. Handcrafted vessels were a common mode of travel across the river, and pirogues and bateaux were also used. As

4704-567: The Hudson River and the port of New York City, the Detroit River became a route for many migrating settlers traveling to northern Michigan. Detroit rapidly attracted a share of new residents. Following the Patriot War , in which British regulars and Michigan militia nearly came to armed conflict on the ice-covered Detroit River, the United States built Fort Wayne at Detroit to counter Britain's riverside Fort Malden at Amherstburg across

4800-428: The accumulation of growth hormones at that point. These shoots are known as keiki . Epipogium aphyllum exhibits a dual reproductive strategy, engaging in both sexual and asexual seed production. The likelihood of apomixis playing a substantial role in successful reproduction appears minimal. Within certain petite orchid species groups, there is a noteworthy preparation of female gametes for fertilization preceding

4896-499: The act of pollination. The ovary typically develops into a capsule that is dehiscent by three or six longitudinal slits, while remaining closed at both ends. The seeds are generally almost microscopic and very numerous, in some species over a million per capsule. After ripening, they blow off like dust particles or spores. Most orchid species lack endosperm in their seed and must enter symbiotic relationships with various mycorrhizal basidiomyceteous fungi that provide them

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4992-554: The anther may rotate and then enter the stigma cavity of the flower (as in Holcoglossum amesianum ). The slipper orchid Paphiopedilum parishii reproduces by self-fertilization . This occurs when the anther changes from a solid to a liquid state and directly contacts the stigma surface without the aid of any pollinating agent or floral assembly. The labellum of the Cypripedioideae is poke bonnet-shaped , and has

5088-610: The aquarium basement during winter. Located to the east of the conservatory building are 20 greenhouse structures. 15 of the structures are used to care for the orchid, bromeliad, cactus, amaryllis and tropical plant collections. Five of the greenhouses are used by the Golightly Career and Technical Center's Agriscience Program for high school students in the metro Detroit area. These greenhouses help train for post-graduation jobs as green's keepers, florists , arborists , nursery owners and related fields. The first greenhouse

5184-458: The booming businesses and long history of Metro Detroit and Windsor, Ontario , the Detroit River has been the site of many artifacts, some lost with sunken ships and others abandoned, such as murder weapons or stolen bronze statues. A DMC DeLorean has also been recovered from the river. The artifacts recovered are well preserved due to the river's fresh water but low visibility makes them difficult to find. A 1940s-era bronze statue depicting

5280-468: The border between the U.S. state of Michigan and the Canadian province of Ontario , flows west and south for 24 nautical miles (44 km; 28 mi) from Lake St. Clair to Lake Erie as a strait in the Great Lakes system. The river divides the metropolitan areas of Detroit , Michigan , and Windsor , Ontario —an area collectively referred to as Detroit–Windsor . The Ambassador Bridge ,

5376-605: The building after architectural exhibitions and garden pavilions of the mid- to late-nineteenth century, most notably The Crystal Palace and the Palm House at Kew Gardens . Located in the center of the 982-acre (397-hectare) Belle Isle Park , the conservatory covers 13 acres (5.3 hectares), with a lily pond on its north side and perennial gardens on the west; the gardens house the Levi L. Barbour Memorial Fountain, designed by sculptor Marshall Fredericks . The Conservatory building

5472-515: The center of a new industry known as rum-running , smuggling liquor into the US. No bridges connected Ontario, Canada and Michigan, US, until the Ambassador Bridge was finished in 1929 and the Detroit–Windsor Tunnel in 1930. Smugglers used boats of varying sizes to transport alcohol across the river during the summer, and during the winter months, rum-runners traveled back and forth across

5568-571: The city of Detroit is directly north of the city of Windsor, Ontario . The only other location where this occurs is Fort Erie, Ontario , which lies south of several cities in Niagara County, New York . The cities and communities southwest of Detroit along the American side of the river are popularly referred to as the Downriver area, because those areas are said to be "down the river" from Detroit. Several of these communities do not border

5664-608: The conservatory building and the Belle Isle Aquarium . It was not part of the original design, but constructed in 1936. The rocky walls were created with 200 tons of moss-covered limestone boulders that were brought from the construction of the Livingstone Channel in the Detroit River near Amherstburg , Ontario . The pond is home to Japanese koi that are maintained by volunteers and are held in

5760-598: The conservatory including volunteer tour guides and gardeners, and was also involved in raising funds to maintain and support the conservatory operation through repairs, equipment, purchase of plant material, etc. In 2004, the Belle Isle Women's Committee was created and its first project was to upgrade Sunset Point. The non-profit Friends of the Belle Isle Aquarium was formed in 2005 with the goal of restoring Belle Isle's historic aquarium . In 2009,

5856-418: The conservatory, which was therefore renamed in her honor on April 6, 1955. Many of these exotic orchids had been saved from Britain throughout World War II . Because of that contribution, the conservatory became "the largest municipally owned orchid collection in the country." The Palm house, maintained at 70 °F, is housed under the dome, and contains a variety of tropical trees and palms , including

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5952-537: The flower ( zygomorphism ), many resupinate flowers, a nearly always highly modified petal (labellum), fused stamens and carpels , and extremely small seeds . All orchids are perennial herbs that lack any permanent woody structure. They can grow according to two patterns: Terrestrial orchids may be rhizomatous or form corms or tubers . The root caps of terrestrial orchids are smooth and white. Some sympodial terrestrial orchids, such as Orchis and Ophrys , have two subterranean tuberous roots . One

6048-536: The flower develops, it undergoes a twisting through 180°, called resupination , so that the labellum lies below the column . The labellum functions to attract insects, and in resupinate flowers, also acts as a landing stage, or sometimes a trap. The reproductive parts of an orchid flower are unique in that the stamens and style are joined to form a single structure, the column . Instead of being released singly, thousands of pollen grains are contained in one or two bundles called pollinia that are attached to

6144-436: The flower, it pulls the pollinium out of the anther, as it is connected to the viscidium by the caudicle or stipe. The caudicle then bends and the pollinium is moved forwards and downwards. When the pollinator enters another flower of the same species, the pollinium has taken such position that it will stick to the stigma of the second flower, just below the rostellum, pollinating it. In horticulture, artificial orchid pollination

6240-409: The flowers to gather volatile chemicals they require to synthesize pheromonal attractants. Males of such species as Euglossa imperialis or Eulaema meriana have been observed to leave their territories periodically to forage for aromatic compounds, such as cineole, to synthesize pheromone for attracting and mating with females. Each type of orchid places the pollinia on a different body part of

6336-714: The four organizations put a plan in action to form a single organization that could pool all their efforts and ideas into a larger and more effective non-profit dedicated to improvement projects. Together, receiving assistance from the Cultural Alliance for Southeastern Michigan and the Michigan Nonprofit Association, they have joined forces to form a single all-volunteer organization named the Belle Isle Conservancy . The Kresge Foundation , based in suburban Detroit, has played

6432-559: The frozen Detroit River by car. In some cases, overloaded cars fell through the ice. In the 21st century, car parts from this era are occasionally still found on the bottom of the river. Rum-running in Windsor and production of bootleg liquor became common practices. American mobsters such as the Purple Gang of Detroit used violence to control the route known as the "Detroit-Windsor Funnel," and continue to gain lucrative returns from

6528-515: The function of trapping visiting insects. The only exit leads to the anthers that deposit pollen on the visitor. In some extremely specialized orchids, such as the Eurasian genus Ophrys , the labellum is adapted to have a colour, shape, and odour which attracts male insects via mimicry of a receptive female. Pollination happens as the insect attempts to mate with flowers. Many neotropical orchids are pollinated by male orchid bees , which visit

6624-430: The genus Corallorhiza (coralroot orchids) lack leaves altogether and instead have symbiotic or parasitic associations with fungal mycelium, though which they absorb sugars. Orchid flowers have three sepals , three petals and a three-chambered ovary . The three sepals and two of the petals are often similar to each other but one petal is usually highly modified, forming a "lip" or labellum . In most orchid genera, as

6720-413: The government's placing tighter restrictions on industries; substantial government funding at various levels has been allocated to clean up the river. In this early period, opponents believed that such efforts would adversely affect Detroit's industry and economy. In 1970, toxic levels of mercury in the water resulted in the total closing of the fishing industry in the St. Clair River , Lake St. Clair ,

6816-461: The individual plant. Their characteristics are often diagnostic. They are normally alternate on the stem, often folded lengthwise along the centre ("plicate"), and have no stipules . Orchid leaves often have siliceous bodies called stegmata in the vascular bundle sheaths (not present in the Orchidoideae ) and are fibrous. The structure of the leaves corresponds to the specific habitat of

6912-401: The largest orchid in the world, Grammatophyllum speciosum (giant orchid), it can reach three meters. Some Dendrobium species have long, canelike pseudobulbs with short, rounded leaves over the whole length; some other orchids have hidden or extremely small pseudobulbs, completely included inside the leaves. With ageing the pseudobulb sheds its leaves and becomes dormant. At this stage it

7008-530: The livelihood of the island park. Friends of Belle Isle, a non-profit grassroots environmental organization, was founded in 1972 and is dedicated to the upkeep and preservation of Belle Isle through cleaning and the ridding of invasive species on the island. In 1988, the Belle Isle Botanical Society began raising money for projects to improve the Anna Scripps Whitcomb Conservatory. The Belle Isle Botanical society offered many services to

7104-418: The necessary nutrients to germinate, so almost all orchid species are mycoheterotrophic during germination and reliant upon fungi to complete their lifecycles. Only a handful of orchid species have seed that can germinate without mycorrhiza , namely the species within the genus Disa with hydrochorous seeds. As the chance for a seed to meet a suitable fungus is very small, only a minute fraction of all

7200-457: The north and Lake Erie to the south, with other portions including the St. Clair River and Lake St. Clair . The Detroit River is only 0.5–2.5 miles (0.8–4.0 km) wide. It begins with an east-to-west flow from Lake St. Clair, but curves and runs north to south. The deepest portion of the Detroit River is 53 feet (16.2 m) in its northern portion. At its source, the river is at an elevation of 574 feet (175 m) above sea level. The river

7296-412: The oil slicks and contaminated water around the mouth of the Detroit River at Lake Erie . The river's oxygen levels were depleted to the point where fish could not inhabit its waters. Because this pollution often drained into and affected Lake Erie, the lake was considered "dead" and unable to support aquatic life. In 1961, a congressional order founded the Wyandotte National Wildlife Refuge. That began

7392-409: The pink powderpuff ( Calliandra brevipes ) and peace lily ( Spathiphyllum ). The Cactus house, 62 °F, is lined in tufa rock and holds a variety of cacti and succulents , including jellybeans ( Sedum pachyphyllum    [ ca ; es ] ), the silver dollar cactus ( Opuntia robusta ), "old man" cactus ( Cephalocereus senilis ) and jade plant ( Crassula ovata ). The Fernery

7488-663: The plant. Species that typically bask in sunlight, or grow on sites which can be occasionally very dry, have thick, leathery leaves and the laminae are covered by a waxy cuticle to retain their necessary water supply. Shade-loving species, on the other hand, have long, thin leaves. The leaves of most orchids are perennial, that is, they live for several years, while others, especially those with plicate leaves as in Catasetum , shed them annually and develop new leaves together with new pseudobulbs. The leaves of some orchids are considered ornamental. The leaves of Macodes sanderiana ,

7584-481: The privately owned Ambassador Bridge , both of which connect Detroit, Michigan, to Windsor, Ontario. A railway tunnel and a commercial truck ferry service also travel between Detroit and Windsor. In Michigan, there are two bridges connecting the mainland to Grosse Ile , as well as the MacArthur Bridge that connects the mainland Detroit to Belle Isle . All ports of entry on the American side are secured by

7680-496: The river lives in Michigan . The Detroit River has two automobile traffic crossings connecting the United States and Canada: the Ambassador Bridge and the Detroit–Windsor Tunnel . Both of these are strongly protected by the U.S. Customs and Border Protection and the Canada Border Services Agency . The upper portion of the river is one of the two places where a Canadian city lies directly south of an American city. In this case,

7776-476: The river until the middle of the 19th century. The 1833 Blackburn Riots in Detroit, which erupted after slave hunters detained couple Lucie and Thornton Blackburn, marked the end of hundreds of years of a nearly porous border between Canada and the United States on the Detroit River. Detroit's African American population protested and helped the Blackburns escape across the Detroit River to Upper Canada, where

7872-407: The river's flow is relatively constant. The Detroit River forms a major element of the international border between the United States and Canada. The river on the American side is all under the jurisdiction of Wayne County, Michigan , and the Canadian side is under the administration of Essex County, Ontario . The largest city along the Detroit River is Detroit , and most of the population along

7968-544: The river. The Detroit River and its recovery efforts were listed as a Michigan State Historic Site in 2007. A historic marker was erected along the river in a park that now serves as the Detroit River International Wildlife Refuge visitor center in the city of Trenton . The Detroit River is used for shipping and trading. The earliest use of the river for these economic activities was the shipping of furs for trade as early as

8064-581: The river. The Detroit River served as a final stop on the Underground Railroad and was the most active entry point along the United States–Canada border for fugitive slaves. Escaping slaves often chose to cross through the Detroit River rather than flee to Mexico because of the river's location near free states made it less risky than traveling through slaveholding states that border Mexico. The strong Underground Railroad networks in

8160-416: The river. Inventory documents record a total of 17 cannons and 14 have been accounted for. It is believed that the British dragged the cannons onto the frozen river so they would sink with the spring thaw, and be kept from use by the American enemy. Another seven, larger cannons may have fallen off a barge closer to Amherstburg , Ontario , and may yet be found in the river. Much of the land that surrounds

8256-417: The seeds released grow into adult plants. In cultivation, germination typically takes weeks. Horticultural techniques have been devised for germinating orchid seeds on an artificial nutrient medium, eliminating the requirement of the fungus for germination and greatly aiding the propagation of ornamental orchids. The usual medium for the sowing of orchids in artificial conditions is agar gel combined with

8352-419: The stem of sympodial epiphytes, or in some species essentially the entire stem, may be thickened to form a pseudobulb that contains nutrients and water for drier periods. The pseudobulb typically has a smooth surface with lengthwise grooves, and can have different shapes, often conical or oblong. Its size is very variable; in some small species of Bulbophyllum , it is no longer than two millimeters, while in

8448-505: The trade. The name parodied the newly built tunnel between the cities and nations. The Detroit River, Lake St. Clair , and the St. Clair River are estimated to have carried 75% of all liquor smuggled into the United States during Prohibition. Government officials were unable or unwilling to deter the flow. The rum-running industry died when prohibition was repealed in 1933 by the Twenty-first Amendment . Because of

8544-466: The two countries do not share a land border along the river. Grosse Ile is the largest and most populated of all islands, and Fighting Island is the largest Canadian island. Most islands are located in the southern portion of the river. Europeans first recorded navigating the Detroit River in the 17th century. The Iroquois traded furs with the Dutch colonists at New Amsterdam by traveling through

8640-465: The world. By comparison, London shipped 18,727,230 tons (16 billion kg), and New York shipped 20,390,953 tons (18 billion kg). From 1920 to 1933, the United States (US) enforced the Prohibition era . The sale, manufacture, and transportation of alcohol for consumption were nationally banned. Detroit, as the largest city bordering Canada, where alcohol remained legal during Prohibition, became

8736-408: Was built on Belle Isle in 1903. The Anna Scripps Whitcomb Conservatory is opened to the public free of charge, and operates mostly on the budget designated by local and state Governments. However, Belle Isle has long history of support through private organizations and donors. Volunteerism plays an important role for all of Belle Isle. Specifically, four major volunteer organizations have been vital to

8832-576: Was controlled by the British Empire and remained neutral in the war. The Union feared the CSA would cross the Detroit River to launch this attack. For that reason, Union forces regularly patrolled the Detroit River and the fortification at Fort Wayne improved, although it was far removed from any major combat. A Confederate plot to capture the U.S. Navy warship, USS Michigan , and liberate Confederate prisoners from Johnson Island , in western Lake Erie,

8928-684: Was known literally as the "River of the Strait". When Great Britain defeated the French in the Seven Years' War (known as the French and Indian War on the American front), it took over control of the Detroit River, as well as other French territory east of the Mississippi River. The newly formed United States claimed this territory during the American Revolution , but the British did not transfer it until 1796. During

9024-610: Was narrowly averted only after the Confederates had captured two passenger steamships. At the beginning of the 20th century, Detroit's industrialization took off on an unprecedented scale. The Detroit River became the world's busiest commercial river and in 1908 was dubbed "the Greatest Commercial Artery on Earth" by The Detroit News . In 1907, the Detroit River carried 67,292,504 tons (61 billion kg) of shipping commerce through Detroit to markets all over

9120-642: Was recovered during a July 1992 project, and the anchor was installed in the yard of the Dossin Great Lakes Museum on Belle Isle . Since the 1980s, divers have recovered a total of six 1700s-era cannons from the river. The last was found in 2011 near the Cobo Center . They are believed to have been part of the pre- War of 1812 inventory kept by the British garrison in this area. Historians believe another three cannon may still be in

9216-594: Was supported by morphological studies , but never received strong support in molecular phylogenetic studies. Apostasioideae : 2 genera and 16 species, south-eastern Asia Cypripedioideae : 5 genera and 130 species, from the temperate regions of the world, as well as tropical America and tropical Asia Vanilloideae : 15 genera and 180 species, humid tropical and subtropical regions, eastern North America Epidendroideae : more than 500 genera and more or less 20,000 species, cosmopolitan Orchidoideae : 208 genera and 3,630 species, cosmopolitan In 2015,

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