100-537: There are hundreds of cultivars of the olive ( Olea europaea ). As one of the oldest and more important domesticated crops raised by humans, the olive tree has diverged naturally and with the assistance of man into many varieties. Olive cultivars are first and foremost divided into their location of origin; most names for cultivars come from place names. Secondarily, olives may be preferred for olive oil production or for eating as table olives, though many cultivars are dual-purpose. Cultivar A cultivar
200-416: A volcanic origin. He also deals with precious stones, emeralds , amethysts , onyx , jasper , etc., and describes a variety of "sapphire" that was blue with veins of gold, and thus was presumably lapis lazuli . He knew that pearls came from shellfish , that coral came from India, and speaks of the fossilized remains of organic life. He also considers the practical uses of various stones, such as
300-424: A "true" cultivar name – the recognized scientific name in the public domain – and a "commercial synonym" – an additional marketing name that is legally protected. An example would be Rosa Fascination = 'Poulmax', in which Rosa is the genus, Fascination is the trade designation, and 'Poulmax' is scientific cultivar name. Because a name that is attractive in one language may have less appeal in another country,
400-424: A component of a cultigen can be accepted as a cultivar if it is recognisable and has stable characters. Therefore, all cultivars are cultigens, because they are cultivated, but not all cultigens are cultivars, because some cultigens have not been formally distinguished and named as cultivars. The Cultivated Plant Code notes that the word cultivar is used in two different senses: first, as a "classification category"
500-436: A constant state of development which makes the naming of such an assemblage as a cultivar a futile exercise." However, retired transgenic varieties such as the fish tomato , which are no longer being developed, do not run into this obstacle and can be given a cultivar name. Cultivars may be selected because of a change in the ploidy level of a plant which may produce more desirable characteristics. Every unique cultivar has
600-796: A cultivar. Some cultivars "come true from seed", retaining their distinguishing characteristics when grown from seed. Such plants are termed a "variety", "selection", or "strain" but these are ambiguous and confusing words that are best avoided. In general, asexually propagated cultivars grown from seeds produce highly variable seedling plants, and should not be labelled with, or sold under, the parent cultivar's name. Seed-raised cultivars may be produced by uncontrolled pollination when characteristics that are distinct, uniform and stable are passed from parents to progeny. Some are produced as "lines" that are produced by repeated self-fertilization or inbreeding or "multilines" that are made up of several closely related lines. Sometimes they are F1 hybrids which are
700-802: A database of new cultivars protected by PBR in all countries. An International Cultivar Registration Authority (ICRA) is a voluntary, non-statutory organization appointed by the Commission for Nomenclature and Cultivar Registration of the International Society of Horticultural Science. ICRAs are generally formed by societies and institutions specializing in particular plant genera such as Dahlia or Rhododendron and are currently located in Europe, North America, China, India, Singapore, Australia, New Zealand, South Africa and Puerto Rico. Each ICRA produces an annual report and its reappointment
800-426: A different form, and what additional structures of thought he placed upon them, can only be partially determined because of the loss of so many of his writings. Many of his opinions have to be reconstructed from the works of later writers such as Alexander of Aphrodisias and Simplicius . Theophrastus seems to have carried out still further the grammatical foundation of logic and rhetoric , since in his book on
900-494: A happiness resting merely upon virtue, or, consequently, to hold fast by the unconditional value of morality . He subordinated moral requirements to the advantage at least of a friend, and had allowed in prosperity the existence of an influence injurious to them. In later times, fault was found with his expression in the Callisthenes , "life is ruled by fortune, not wisdom" ( vitam regit fortuna non sapientia ). That in
1000-432: A manner of which Aristotle would not have approved. Theophrastus was opposed to eating meat on the grounds that it robbed animals of life and was therefore unjust. Non-human animals, he said, can reason, sense, and feel just as human beings do. The marble herm figure with the bearded head of philosopher type, bearing the explicit inscription, must be taken as purely conventional. Unidentified portrait heads did not find
1100-582: A modern vernacular language to distinguish them from botanical epithets. For example, the full cultivar name of the King Edward potato is Solanum tuberosum 'King Edward'. 'King Edward' is the cultivar epithet, which, according to the Rules of the Cultivated Plant Code , is bounded by single quotation marks. For patented or trademarked plant product lines developed from a given cultivar,
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#17327732526641200-413: A name, the first letter of the word "Group" is itself capitalized. Since the 1990s there has been an increasing use of legal protection for newly produced cultivars. Plant breeders expect legal protection for the cultivars they produce. According to proponents of such protections, if other growers can immediately propagate and sell these cultivars as soon as they come on the market, the breeder's benefit
1300-455: A necessary consequence of all activity. In ethics , he regarded happiness as depending on external influences as well as on virtue . Most of the biographical information about Theophrastus was provided by Diogenes Laërtius ' Lives and Opinions of Eminent Philosophers , written more than four hundred years after Theophrastus's time. He was a native of Eresos in Lesbos . His given name
1400-499: A particular disease. Genetically modified plants with characteristics resulting from the deliberate implantation of genetic material from a different germplasm may form a cultivar. However, the International Code of Nomenclature for Cultivated Plants notes, "In practice such an assemblage is often marketed from one or more lines or multilines that have been genetically modified. These lines or multilines often remain in
1500-595: A particular part of the plant, such as a lateral branch, or from a particular phase of the life cycle, such as a juvenile leaf, or from aberrant growth as occurs with witch's broom . Plants whose distinctive characters are derived from the presence of an intracellular organism may also form a cultivar provided the characters are reproduced reliably from generation to generation. Plants of the same chimera (which have mutant tissues close to normal tissue) or graft-chimeras (which have vegetative tissue from different kinds of plants and which originate by grafting) may also constitute
1600-538: A plant may be given different selling names from country to country. Quoting the original cultivar name allows the correct identification of cultivars around the world. The main body coordinating plant breeders' rights is the International Union for the Protection of New Varieties of Plants ( Union internationale pour la protection des obtentions végétales , UPOV) and this organization maintains
1700-783: A ready market in post-Renaissance Rome. This bust was formerly in the collection of marchese Pietro Massimi at Palazzo Massimi and belonged to marchese L. Massimi at the time the engraving was made. It is now in the Villa Albani , Rome (inv. 1034). The inscribed bust has often been illustrated in engravings and photographs: a photograph of it forms the frontispiece to the Loeb Classical Library Theophrastus: Enquiry into Plants vol. I, 1916. André Thevet illustrated in his iconographic compendium, Les vraies Pourtrats et vies des Hommes Illustres (Paris, 1584), an alleged portrait plagiarized from
1800-512: A source for other lapidaries until at least the Renaissance , Theophrastus classified rocks and gems based on their behavior when heated, further grouping minerals by common properties, such as amber and magnetite , which both have the power of attraction. Theophrastus describes different marbles ; mentions coal , which he says is used for heating by metal-workers; describes the various metal ores ; and knew that pumice stones had
1900-485: A spirit entirely independent of organic activity, must therefore have appeared to him very doubtful; yet he appears to have contented himself with developing his doubts and difficulties on the point, without positively rejecting it. Other Peripatetics, like Dicaearchus , Aristoxenus , and especially Strato , developed further this naturalism in Aristotelian doctrine. Theophrastus seems, generally speaking, where
2000-462: A unique name within its denomination class (which is almost always the genus). Names of cultivars are regulated by the International Code of Nomenclature for Cultivated Plants , and may be registered with an International Cultivar Registration Authority (ICRA). There are sometimes separate registration authorities for different plant types such as roses and camellias. In addition, cultivars may be associated with commercial marketing names referred to in
2100-709: A vernacular language. From circa the 1900s, cultivated plants in Europe were recognised in the Scandinavian, Germanic, and Slavic literature as stamm or sorte , but these words could not be used internationally because, by international agreement, any new denominations had to be in Latin. In the twentieth century an improved international nomenclature was proposed for cultivated plants. Liberty Hyde Bailey of Cornell University in New York , United States created
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#17327732526642200-409: Is capitalized (with some permitted exceptions such as conjunctions). It is permissible to place a cultivar epithet after a common name provided the common name is botanically unambiguous. Cultivar epithets published before 1 January 1959 were often given a Latin form and can be readily confused with the specific epithets in botanical names; after that date, newly coined cultivar epithets must be in
2300-468: Is a kind of cultivated plant that people have selected for desired traits and which retains those traits when propagated . Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting , tissue culture , or carefully controlled seed production. Most cultivars arise from deliberate human manipulation , but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of
2400-529: Is any plant that is deliberately selected for or altered in cultivation, as opposed to an indigen ; the Cultivated Plant Code states that cultigens are "maintained as recognisable entities solely by continued propagation". Cultigens can have names at any of many taxonomic ranks, including those of grex , species , cultivar group , variety , form , and cultivar; and they may be plants that have been altered in cultivation, including by genetic modification , but have not been formally denominated. A cultigen or
2500-444: Is considered every four years. The main task is to maintain a register of the names within the group of interest and where possible this is published and placed in the public domain. One major aim is to prevent the duplication of cultivar and Group epithets within a genus, as well as ensuring that names are in accord with the latest edition of the Cultivated Plant Code . In this way, over the last 50 years or so, ICRAs have contributed to
2600-404: Is largely lost. Legal protection for cultivars is obtained through the use of Plant breeders' rights and plant Patents but the specific legislation and procedures needed to take advantage of this protection vary from country to country. The use of legal protection for cultivars can be controversial, particularly for food crops that are staples in developing countries, or for plants selected from
2700-432: Is simply a matter of convenience as the category was created to serve the practical needs of horticulture , agriculture , and forestry . Members of a particular cultivar are not necessarily genetically identical. The Cultivated Plant Code emphasizes that different cultivated plants may be accepted as different cultivars, even if they have the same genome, while cultivated plants with different genomes may be regarded as
2800-725: Is testified to not only by a number of treatises on individual subjects of zoology , of which, besides the titles, only fragments remain, but also by his books On Stones , his Enquiry into Plants , and On the Causes of Plants (see below), which have come down to us entire. In politics, also, he seems to have trodden in the footsteps of Aristotle. Besides his books on the State ( Πολιτικῶν and Πολιτικοῦ ), we find quoted various treatises on Education ( Περὶ παιδείας βασιλέως and Περὶ παιδείας ), on Royalty ( Περὶ βασιλείας , Περὶ παιδείας βασιλέως and Πρὸς Κάσανδρον περὶ βασιλείας ), on
2900-424: Is the sense of cultivar that is most generally understood and which is used as a general definition. A cultivar is an assemblage of plants that (a) has been selected for a particular character or combination of characters, (b) is distinct, uniform and stable in those characters, and (c) when propagated by appropriate means, retains those characters. Which plants are chosen to be named as cultivars
3000-440: Is to replace the Latin scientific names on plant labels in retail outlets with appealing marketing names that are easy to use, pronounce, and remember. Marketing names lie outside the scope of the Cultivated Plant Code which refers to them as "trade designations". If a retailer or wholesaler has the sole legal rights to a marketing name then that may offer a sales advantage. Plants protected by plant breeders' rights (PBR) may have
3100-639: Is usually stated to be ... we must set certain limits to purposiveness and to the effort after the best, and not assert it to exist in all cases without qualification. He did not follow the incessant attempts by Aristotle to refer phenomena to their ultimate foundations, or his attempts to unfold the internal connections between the latter, and between them and phenomena. In antiquity, it was a subject of complaint that Theophrastus had not expressed himself with precision and consistency respecting God , and had understood it at one time as Heaven , at another an (enlivening) breath ( pneuma ). Theophrastus did not allow
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3200-512: Is very likely that he did so at the urging of Theophrastus. It seems that it was on Lesbos that Aristotle and Theophrastus began their research into natural science , with Aristotle studying animals and Theophrastus studying plants. Theophrastus probably accompanied Aristotle to Macedonia when Aristotle was appointed tutor to Alexander the Great in 343/2. Around 335 BC, Theophrastus moved with Aristotle to Athens, where Aristotle began teaching in
3300-468: The Academics , and a sketch of the political doctrine of Plato . He studied general history, as we know from Plutarch 's lives of Lycurgus , Solon , Aristides , Pericles , Nicias , Alcibiades , Lysander , Agesilaus , and Demosthenes , which were probably borrowed from the work on Lives ( Περὶ βίων ). But his main efforts were to continue the labours of Aristotle in natural history . This
3400-702: The Best State ( Περὶ τῆς ἀρίστης πολιτείας ), on Political Morals ( Πολιτικῶν ἐθῶν ), and particularly his works on the Laws ( Νόμων κατὰ στοιχεῖον , Νόμων ἐπιτομῆς and Περὶ νόμων ), one of which, containing a recapitulation of the laws of various barbarian as well as Greek states, was intended to be a companion to Aristotle's outline of Politics , and must have been similar to it. He also wrote on oratory and poetry . Theophrastus, without doubt, departed further from Aristotle in his ethical writings, as also in his metaphysical investigations of motion ,
3500-554: The Characters . George Eliot also took inspiration from Theophrastus's Characters , most notably in her book of caricatures, Impressions of Theophrastus Such . Writing the "character sketch" as a scholastic exercise also originated in Theophrastus's typology. A treatise On Sense Perception ( Περὶ αἰσθήσεων ) and its objects is important for a knowledge of the doctrines of the more ancient Greek philosophers regarding
3600-728: The Codex Urbinas in the Vatican Library , which was not made known to J. G. Schneider , who made the first modern critical edition, 1818–21, and the excerpts in the Codex Parisiensis in the Bibliothèque nationale de France . His book Characters ( Ἠθικοὶ χαρακτῆρες ) contains thirty brief outlines of moral types. They are the first recorded attempt at systematic character writing . The book has been regarded by some as an independent work; others incline to
3700-402: The Cultivated Plant Code as "trade designations" (see below). A cultivar name consists of a botanical name (of a genus, species , infraspecific taxon , interspecific hybrid or intergeneric hybrid) followed by a cultivar epithet . The cultivar epithet is enclosed by single quotes; it should not be italicized if the botanical name is italicized; and each of the words within the epithet
3800-417: The Cultivated Plant Code . Each ICRA also ensures that new names are formally established (i.e. published in hard copy, with a description in a dated publication). They record details about the plant, such as parentage, the names of those concerned with its development and introduction, and a basic description highlighting its distinctive characters. ICRAs are not responsible for assessing the distinctiveness of
3900-495: The International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word cultivar was coined as a term meaning " cultivated variety ". Popular ornamental plants like roses , camellias , daffodils , rhododendrons , and azaleas are commonly cultivars produced by breeding and selection or as sports , for floral colour or size, plant form, or other desirable characteristics. Similarly,
4000-604: The Latin names in Linnaeus ' (1707–1778) Species Plantarum (tenth edition) and Genera Plantarum (fifth edition). In Species Plantarum , Linnaeus enumerated all plants known to him, either directly or from his extensive reading. He recognised the rank of varietas (botanical "variety", a rank below that of species and subspecies ) and he indicated these varieties with letters of the Greek alphabet , such as α, β, and λ, before
4100-528: The Lyceum . When, after the death of Alexander, anti-Macedonian feeling forced Aristotle to leave Athens, Theophrastus remained behind as head ( scholarch ) of the Peripatetic school , a position he continued to hold after Aristotle's death in 322/1. Aristotle in his will made him guardian of his children, including Nicomachus , with whom he was close. Aristotle likewise bequeathed to him his library and
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4200-708: The Natural Philosophy ( Περὶ φύσεως , Περὶ φυσικῶν , Φυσικῶν and others), on Heaven ( Περὶ οὐρανοῦ ), and on Meteorological Phenomena ( Τῆς μεταρσιολεσχίας and Μεταρσιολογικῶν ). In addition, Theophrastus wrote on the Warm and the Cold ( Περὶ θερμοῦ καὶ ψυχροῦ ), on Water ( Περὶ ὕδατος ), Fire ( Περὶ πυρóς ), the Sea ( Περὶ θαλάττης ), on Coagulation and Melting ( Περὶ πήξεων καὶ τήξεων ), on various phenomena of organic and spiritual life, and on
4300-504: The Soul ( Περὶ ψυχῆς ), on Experience ( Περὶ ἐμπειρίας ) and On Sense Perception (also known as On the Senses ; Περὶ αἰσθήσεων ). Likewise, we find mention of monographs of Theophrastus on the early Greek philosophers Anaximenes , Anaxagoras , Empedocles , Archelaus , Diogenes of Apollonia , Democritus , which were made use of by Simplicius ; and also on Xenocrates , against
4400-530: The Topica of Theophrastus. Closely connected with this treatise was that upon ambiguous words or ideas, which, without doubt, corresponded to book Ε of Aristotle's Metaphysics . Theophrastus introduced his Physics with the proof that all natural existence, being corporeal and composite, requires principles , and first and foremost, motion , as the basis of all change. Denying the substance of space , he seems to have regarded it, in opposition to Aristotle, as
4500-520: The Winds , and on the signs of Waters , Winds , and Storms . Various smaller scientific fragments have been collected in the editions of Johann Gottlob Schneider (1818–21) and Friedrich Wimmer (1842–62) and in Hermann Usener 's Analecta Theophrastea . The Metaphysics (anachronistic Greek title: Θεοφράστου τῶν μετὰ τὰ φυσικά ), in nine chapters (also known as On First Principles ),
4600-514: The cultigen , which is defined as a plant whose origin or selection is primarily due to intentional human activity. A cultivar is not the same as a botanical variety , which is a taxonomic rank below subspecies , and there are differences in the rules for creating and using the names of botanical varieties and cultivars. In recent times, the naming of cultivars has been complicated by the use of statutory patents for plants and recognition of plant breeders' rights . The International Union for
4700-415: The etymology and it has been suggested that the word is actually a blend of culti gen and var iety . The neologism cultivar was promoted as "euphonious" and "free from ambiguity". The first Cultivated Plant Code of 1953 subsequently commended its use, and by 1960 it had achieved common international acceptance. The words cultigen and cultivar may be confused with each other. A cultigen
4800-694: The soul , and God . Besides these writings, Theophrastus wrote several collections of problems, out of which some things at least have passed into the Problems that have come down to us under the name of Aristotle, and commentaries, partly dialogue , to which probably belonged the Erotikos ( Ἐρωτικός ), Megacles ( Μεγακλῆς ), Callisthenes ( Καλλισθένης ), and Megarikos ( Μεγαρικός ), and letters, partly books on mathematical sciences and their history. Many of his surviving works exist only in fragmentary form. "The style of these works, as of
4900-414: The "father of botany" for his groundbreaking works " Enquiry into Plants " ( Ancient Greek : Περὶ φυτῶν ἱστορία , romanized : Peri phytōn historia ) and "On the Causes of Plants," ( Ancient Greek : Περὶ αἰτιῶν φυτικῶν , romanized : Peri aitiōn phytikōn ) Theophrastus established the foundations of botanical science . His given name was Tyrtamos ( Ancient Greek : Τύρταμος );
5000-457: The 1995 edition, it is still widely used and recommended by other authorities. Where several very similar cultivars exist they can be associated into a Group (formerly Cultivar-group ). As Group names are used with cultivar names it is necessary to understand their way of presentation. Group names are presented in normal type and the first letter of each word capitalised as for cultivars, but they are not placed in single quotes. When used in
5100-427: The Causes of Plants was originally eight books, of which six survive. It concerns the growth of plants; the influences on their fecundity; the proper times they should be sown and reaped; the methods of preparing the soil, manuring it, and the use of tools; and of the smells, tastes, and properties of many types of plants. The work deals mainly with the economical uses of plants rather than their medicinal uses, although
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#17327732526645200-439: The Causes of Plants , were an important influence on Renaissance science . There are also surviving works On Moral Characters , On Sense Perception , and On Stones , as well as fragments on Physics and Metaphysics . In philosophy, he studied grammar and language and continued Aristotle's work on logic . He also regarded space as the mere arrangement and position of bodies, time as an accident of motion, and motion as
5300-530: The Greek plants may have come from his own observations, as he is known to have travelled throughout Greece, and to have had a botanical garden of his own; but the works also profit from the reports on plants of Asia brought back from those who followed Alexander the Great : to the reports of Alexander's followers he owed his accounts of such plants as the cotton-plant , banyan , pepper , cinnamon , myrrh , and frankincense . Theophrastus's Enquiry into Plants
5400-611: The Peripatetic school for thirty-six years, during which time the school flourished greatly. He is often considered the father of botany for his works on plants. After his death, the Athenians honoured him with a public funeral. His successor as head of the school was Strato of Lampsacus . The interests of Theophrastus were wide ranging, including biology , physics , ethics and metaphysics . His two surviving botanical works, Enquiry into Plants (Historia Plantarum) and On
5500-443: The Protection of New Varieties of Plants (UPOV – French : Union internationale pour la protection des obtentions végétales ) offers legal protection of plant cultivars to persons or organisations that introduce new cultivars to commerce. UPOV requires that a cultivar be "distinct", "uniform", and "stable". To be "distinct", it must have characters that easily distinguish it from any other known cultivar. To be "uniform" and "stable",
5600-413: The best treatises on that doctrine. In different monographs he seems to have tried to expand it into a general theory of science . To this, too, may have belonged the proposition quoted from his Topics , that the principles of opposites are themselves opposed, and cannot be deduced from one and the same higher genus. For the rest, some minor deviations from the Aristotelian definitions are quoted from
5700-408: The botanical books, suggests that, as in the case of Aristotle, what we possess consists of notes for lectures or notes taken of lectures," his translator Arthur F. Hort remarks. "There is no literary charm; the sentences are mostly compressed and highly elliptical, to the point sometimes of obscurity". The text of these fragments and extracts is often so corrupt that there is a certain plausibility to
5800-473: The botanical variety except in respect to its origin. In that essay, Bailey used only the rank of species for the cultigen, but it was obvious to him that many domesticated plants were more like botanical varieties than species, and that realization appears to have motivated the suggestion of the new category of cultivar . Bailey created the word cultivar . It is generally assumed to be a blend of culti vated and var iety but Bailey never explicitly stated
5900-528: The bust, supporting his fraud with the invented tale that he had obtained it from the library of a Greek in Cyprus and that he had seen a confirming bust in the ruins of Antioch. A world is named Theophrastus in the 2014 Firefly graphic novel Serenity: Leaves on the Wind . Theodor Geisel used the name "Theophrastus" as the given name of his pen-name alter ego, Dr. Seuss . A board game named Theophrastus
6000-421: The commercial product name is typically indicated by the symbols "TM" or "®", or is presented in capital letters with no quotation marks, following the cultivar name, as in the following example, where "Bloomerang" is the commercial name and 'Penda' is the cultivar epithet: Syringa 'Penda' BLOOMERANG. Although "cv." has not been permitted by the International Code of Nomenclature for Cultivated Plants since
6100-530: The complete failure of a charge of impiety brought against him. He was honored with a public funeral, and "the whole population of Athens, honouring him greatly, followed him to the grave." He was succeeded as head of the Lyceum by Strato of Lampsacus . From the lists of Diogenes, giving 227 titles, it appears that the activity of Theophrastus extended over the whole field of contemporary knowledge. His writing probably differed little from Aristotle's treatment of
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#17327732526646200-496: The cultivar is defined in Article 2 of the International Code of Nomenclature for Cultivated Plants (2009, 8th edition) as follows: The basic category of cultivated plants whose nomenclature is governed by this Code is the cultivar. There are two other classification categories for cultigens, the grex and the group . The Code then defines a cultivar as a "taxonomic unit within the classification category of cultivar". This
6300-480: The cultivar must retain these characters in repeated propagation. The naming of cultivars is an important aspect of cultivated plant taxonomy , and the correct naming of a cultivar is prescribed by the Rules and Recommendations of the International Code of Nomenclature for Cultivated Plants (ICNCP, commonly denominated the Cultivated Plant Code ). A cultivar is given a cultivar name, which consists of
6400-410: The definition of pleasure, likewise, he did not coincide with Aristotle, seems to be indicated by the titles of two of his writings, one of which dealt with pleasure generally, the other with pleasure as Aristotle had defined it. Although, like his teacher, he preferred contemplative (theoretical), to active (practical) life, he preferred to set the latter free from the restraints of family life, etc. in
6500-423: The elements of speech , he distinguished the main parts of speech from the subordinate parts, and also direct expressions ( κυρία λέξις kuria lexis ) from metaphorical expressions, and dealt with the emotions ( πάθη pathe ) of speech. He further distinguished a twofold reference of speech ( σχίσις schisis ) to things ( πράγματα pragmata ) and to the hearers, and referred poetry and rhetoric to
6600-513: The first record of pyroelectricity. The misconception arose soon after the discovery of the pyroelectric properties of tourmaline , which made mineralogists of the time associate the lyngurium with it. Lyngurium is described in the work of Theophrastus as being similar to amber , capable of attracting "straws and bits of wood", but without specifying any pyroelectric properties. The extent to which Theophrastus followed Aristotle's doctrines, or defined them more accurately, or conceived them in
6700-418: The investigation overstepped the limits of experience, to have preferred to develop the difficulties rather than solve them, as is especially apparent in his Metaphysics . He was doubtful of Aristotle's teleology and recommended that such ideas be used with caution: With regard to the view that all things are for the sake of an end and nothing is in vain, the assignation of ends is in general not easy, as it
6800-413: The latter is sometimes mentioned. A book on wines and a book on plant smells may have once been part of the complete work. Although these works contain many absurd and fabulous statements, they include valuable observations concerning the functions and properties of plants. Theophrastus observed the process of germination and recognized the significance of climate to plants. Much of the information on
6900-400: The latter. He wrote at length on the unity of judgment , on the different kinds of negation, and on the difference between unconditional and conditional necessity. In his doctrine of syllogisms he brought forward the proof for the conversion of universal affirmative judgments, differed from Aristotle here and there in the laying down and arranging the modi of the syllogisms, partly in
7000-458: The life in animals does not need explanation or is to be explained only in this way, may it not be the case that in the heavens too, and in the heavenly bodies, movement does not need explanation or is to be explained in a special way? He recognised no activity without motion, and so referred all activities of the soul to motion: the desires and emotions to corporeal motion, judgment ( kriseis ) and contemplation to spiritual motion. The idea of
7100-497: The mere arrangement and position ( taxis and thesis ) of bodies. Time he called an accident of motion, without, it seems, viewing it, with Aristotle, as the numerical determinant of motion. He attacked the doctrine of the four classical elements and challenged whether fire could be called a primary element when it appears to be compound, requiring, as it does, another material for its own nutriment. He departed more widely from Aristotle in his doctrine of motion, since on
7200-464: The minerals necessary for the manufacture of glass; for the production of various pigments of paint such as ochre ; and for the manufacture of plaster . Many of the rarer minerals were found in mines, and Theophrastus mentions the famous copper mines of Cyprus and the even more famous silver mines , presumably of Laurium near Athens – the basis of the wealth of the city – as well as referring to gold mines . The Laurium silver mines, which were
7300-552: The mines as a thing of the past. The ancient workings, consisting of shafts and galleries for excavating the ore, and washing tables for extracting the metal, may still be seen. Theophrastus wrote a separate work On Mining , which – like most of his writings – is a lost work . Pliny the Elder makes clear references to his use of On Stones in his Naturalis Historia of 77 AD, while updating and making much new information available on minerals himself. Although Pliny's treatment of
7400-607: The most important contribution to botanical science during antiquity and the Middle Ages, the first systemization of the botanical world; on the strength of these works some, following Linnaeus , call him the "father of botany ". The Enquiry into Plants was originally ten books, of which nine survive. The work is arranged into a system whereby plants are classified according to their modes of generation, their localities, their sizes, and according to their practical uses such as foods, juices, herbs, etc. The first book deals with
7500-453: The nickname Theophrastus ("divine speaker") was reputedly given to him by Aristotle in recognition of his eloquent style. He came to Athens at a young age and initially studied in Plato's school . After Plato's death, he attached himself to Aristotle who took to Theophrastus in his writings. When Aristotle fled Athens, Theophrastus took over as head of the Lyceum . Theophrastus presided over
7600-446: The one hand he extended it over all categories, and did not limit it to those laid down by Aristotle. He viewed motion, with Aristotle, as an activity, not carrying its own goal in itself ( ateles ), of that which only potentially exists, but he opposed Aristotle's view that motion required a special explanation, and he regarded it as something proper both to nature in general and the celestial system in particular: Surely, then, if
7700-412: The originals of his works, and designated him as his successor at the Lyceum. Eudemus of Rhodes also had some claims to this position, and Aristoxenus is said to have resented Aristotle's choice. Theophrastus presided over the Peripatetic school for 35 years, and died at age 85, according to Diogenes. He is said to have remarked, "We die just when we are beginning to live". Under his guidance,
7800-469: The parts of plants; the second book with the reproduction of plants and the times and manner of sowing; the third, fourth, and fifth books are devoted to trees, their types, their locations, and their practical applications; the sixth book deals with shrubs and spiny plants; the seventh book deals with herbs; the eighth book deals with plants that produce edible seeds; and the ninth book deals with plants that produce useful juices, gums , resins , etc. On
7900-436: The plant in question. Most ICRAs can be contacted electronically and many maintain web sites for an up-to-date listing. Theophrastus Theophrastus ( / ˌ θ iː . ə ˈ f r æ s t ə s / ; Ancient Greek : Θεόφραστος , romanized : Theophrastos , lit. 'godly phrased'; c. 371 – c. 287 BC) was an ancient Greek philosopher and naturalist . A native of Eresos in Lesbos , he
8000-442: The proof of them, partly in the doctrine of mixture, i.e. of the influence of the modality of the premises upon the modality of the conclusion. Then, in two separate works, he dealt with the reduction of arguments to the syllogistic form and on the resolution of them; and further, with hypothetical conclusions. For the doctrine of proof , Galen quotes the second Analytic of Theophrastus, in conjunction with that of Aristotle, as
8100-523: The property of the state, were usually leased for a fixed sum and a percentage on the working. Towards the end of the fifth century BCE the output fell, partly owing to the Spartan occupation of Decelea from c. 413 BCE. But the mines continued to be worked, though Strabo ( c. 64 BCE to c. 24 CE) records that in his time the tailings were being worked over, and Pausanias ( c. 110 to c. 180 ) speaks of
8200-428: The result of a deliberate repeatable single cross between two pure lines. A few F2 hybrid seed cultivars also exist, such as Achillea 'Summer Berries'. Some cultivars are agamospermous plants, which retain their genetic composition and characteristics under reproduction. Occasionally cultivars are raised from seed of a specially selected provenance – for example the seed may be taken from plants that are resistant to
8300-899: The same cultivar. The production of cultivars generally entails considerable human involvement although in a few cases it may be as little as simply selecting variation from plants growing in the wild (whether by collecting growing tissue to propagate from or by gathering seed). Cultivars generally occur as ornamentals and food crops: Malus ' Granny Smith ' and Malus ' Red Delicious ' are cultivars of apples propagated by cuttings or grafting , Lactuca 'Red Sails' and Lactuca 'Great Lakes' are lettuce cultivars propagated by seeds. Named cultivars of Hosta and Hemerocallis plants are cultivars produced by micropropagation or division. Cultivars that are produced asexually are genetically identical and known as clones ; this includes plants propagated by division , layering , cuttings , grafts , and budding . The propagating material may be taken from
8400-596: The same themes, though supplementary in details. Like Aristotle, most of his writings are lost works . Thus Theophrastus, like Aristotle, had composed a first and second Analytic ( Ἀναλυτικῶν προτέρων and Ἀναλυτικῶν ὑστέρων ). He had also written books on Topics ( Ἀνηγμένων τόπων , Τοπικῶν and Τὰ πρὸ τῶν τόπων ); on the Analysis of Syllogisms ( Περὶ ἀναλύσεως συλλογισμῶν and Περὶ συλλογισμῶν λύσεως ), on Sophisms ( Σοφισμάτων ) and on Affirmation and Denial ( Περὶ καταφάσεως καὶ ἀποφάσεως ) as well as on
8500-415: The school flourished greatly—there were at one period more than 2,000 students, Diogenes affirms —and at his death, according to the terms of his will preserved by Diogenes, he bequeathed to it his garden with house and colonnades as a permanent seat of instruction. The comic poet Menander was among his pupils. His popularity was shown in the regard paid to him by Philip , Cassander , and Ptolemy , and by
8600-416: The scientific Latin botanical name followed by a cultivar epithet . The cultivar epithet is usually in a vernacular language. The word cultivar originated from the need to distinguish between wild plants and those with characteristics that arose in cultivation, presently denominated cultigens . This distinction dates to the Greek philosopher Theophrastus (370–285 BC), the "Father of Botany", who
8700-479: The stability of cultivated plant nomenclature. In recent times many ICRAs have also recorded trade designations and trademarks used in labelling plant material, to avoid confusion with established names. New names and other relevant data are collected by and submitted to the ICRA and in most cases there is no cost. The ICRA then checks each new epithet to ensure that it has not been used before and that it conforms with
8800-406: The subject is more extensive, Theophrastus is more systematic and his work is comparatively free from fable and magic, although he did describe lyngurium , a gemstone supposedly formed of the solidified urine of the lynx (the best ones coming from wild males), which featured in many lapidaries until it gradually disappeared from view in the 17th century. It is mistakenly attributed to Theophrastus
8900-408: The subject. A paraphrase and commentary on this work was written by Priscian of Lydia in the sixth century. With this type of work we may connect the fragments on Smells , on Fatigue , on Dizziness , on Sweat , on Swooning , on Palsy , and on Honey . Fragments of a History of Physics ( Περὶ φυσικῶν ἱστοριῶν ) are extant. To this class of work belong the still extant sections on Fire , on
9000-432: The varietal name, rather than using the abbreviation "var." as is the present convention. Most of the varieties that Linnaeus enumerated were of "garden" origin rather than being wild plants. In time the need to distinguish between wild plants and those with variations that had been cultivated increased. In the nineteenth century many "garden-derived" plants were given horticultural names, sometimes in Latin and sometimes in
9100-437: The view that the sketches were written from time to time by Theophrastus, and collected and edited after his death; others, again, regard the Characters as part of a larger systematic work, but the style of the book is against this. Theophrastus has found many imitators in this kind of writing, notably Joseph Hall (1608), Sir Thomas Overbury (1614–16), Bishop Earle (1628), and Jean de La Bruyère (1688), who also translated
9200-428: The well-known story that the works of Aristotle and Theophrastus were allowed to languish in the cellar of Neleus of Scepsis and his descendants. The most important of his books are two large botanical treatises, Enquiry into Plants ( Περὶ φυτῶν ἱστορία , generally known as Historia Plantarum ), and On the Causes of Plants ( Greek : Περὶ αἰτιῶν φυτικῶν , Latin : De causis plantarum ), which constitute
9300-428: The wild and propagated for sale without any additional breeding work; some people consider this practice unethical . The formal scientific name of a cultivar, like Solanum tuberosum 'King Edward', is a way of uniquely designating a particular kind of plant. This scientific name is in the public domain and cannot be legally protected. Plant retailers wish to maximize their share of the market and one way of doing this
9400-414: The word cultivar in 1923 when he wrote that: The cultigen is a species, or its equivalent, that has appeared under domestication – the plant is cultigenous. I now propose another name, cultivar, for a botanical variety, or for a race subordinate to species, that has originated under cultivation; it is not necessarily, however, referable to a recognized botanical species. It is essentially the equivalent of
9500-406: The world's agricultural food crops are almost exclusively cultivars that have been selected for characters such as improved yield, flavour, and resistance to disease, and very few wild plants are now used as food sources. Trees used in forestry are also special selections grown for their enhanced quality and yield of timber . Cultivars form a major part of Liberty Hyde Bailey 's broader group,
9600-460: Was Aristotle's close colleague and successor as head of the Lyceum , the Peripatetic school of philosophy in Athens . Theophrastus wrote numerous treatises across all areas of philosophy, working to support, improve, expand, and develop the Aristotelian system . He made significant contributions to various fields, including ethics , metaphysics , botany , and natural history . Often considered
9700-596: Was Tyrtamus ( Τύρταμος ), but he later became known by the nickname "Theophrastus", given to him, it is said, by Aristotle to indicate the grace of his conversation (from Ancient Greek Θεός 'god' and φράζειν 'to phrase', i.e. divine expression). After receiving instruction in philosophy on Lesbos from one Alcippus, he moved to Athens , where he may have studied under Plato . He became friends with Aristotle, and when Plato died (348/7 BC) Theophrastus may have joined Aristotle in his self-imposed exile from Athens. When Aristotle moved to Mytilene on Lesbos in 345/4, it
9800-591: Was considered a fragment of a larger work by Usener in his edition (Theophrastos, Metaphysica , Bonn, 1890), but according to Ross and Fobes in their edition (Theophrastus, Metaphysica , Oxford, 1929), the treatise is complete (p. X) and this opinion is now widely accepted. There is no reason for assigning this work to some other author because it is not noticed in Hermippus and Andronicus , especially as Nicolaus of Damascus had already mentioned it. In his treatise On Stones ( Περὶ λίθων ), which would become
9900-414: Was first published in a Latin translation by Theodore Gaza , at Treviso, 1483; in its original Greek it first appeared from the press of Aldus Manutius at Venice, 1495–98, from a third-rate manuscript, which, like the majority of the manuscripts that were sent to printers' workshops in the fifteenth and sixteenth century, has disappeared. Christian Wimmer identified two manuscripts of first quality,
10000-477: Was keenly aware of this difference. Botanical historian Alan Morton noted that Theophrastus in his Historia Plantarum ( Enquiry into Plants ) "had an inkling of the limits of culturally induced ( phenotypic ) changes and of the importance of genetic constitution" ( Historia Plantarum , Book 3, 2, 2 and Causa Plantarum , Book 1, 9, 3). The International Code of Nomenclature for algae, fungi, and plants uses as its starting point for modern botanical nomenclature
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