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Thorne System
A system of plant taxonomy, the Thorne system of plant classification was devised by the American botanist Robert F. Thorne (1920–2015) in 1968, and he continued to issue revisions over many years (1968–2007). Some versions of the system are available online. The Bioinformatics Working Group Center for the Study of Digital Libraries at Texas A&M University lists the March 1999 version (and other classification systems). James Reveal's course lecture notes (1999) also gives an account of the Thorne system at that time, with an extensive listing of synonyms, both nomenclatural and taxonomic, for each name in the system together with several other classification systems. For a discussion of the various suffixes used for superorders (''-florae'' ''vs.'' ''-anae''), see Brummitt 1992, and Thorne 1992. In this latter paper, Thorne sets out his reasons for abandoning ''-florae'' for ''-anae'', following contemporary practice. 1968 System Monocotyledons Superorders * Superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Systems Of Plant Taxonomy
This list of systems of plant taxonomy presents "taxonomic systems" used in plant classification. A wiktionary:taxonomic system, taxonomic system is a coherent whole of alpha taxonomy, taxonomic judgments on circumscription (taxonomy), circumscription and placement of the considered taxa. It is only a "system" if it is applied to a large group of such taxa (for example, all the flowering plants). There are two main criteria for this list. A system must be alpha taxonomy, taxonomic, that is deal with many plants, by their botanical names. Secondly it must be a system, i.e. deal with the relationships of plants. Although thinking about relationships of plants had started much earlier (see history of plant systematics), such systems really only came into being in the 19th century, as a result of an ever-increasing influx from all over the world of newly discovered plant species. The 18th century saw some early systems, which are perhaps precursors rather than full taxonomic systems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gentiananae
Gentianales is an order of flowering plants, included within the asterid clade of eudicots. It comprises more than 20,000 species in about 1,200 genera in 5 families. More than 80% of the species in this order belong to the family Rubiaceae. Many of these flowering plants are used in traditional medicine. They have been used to treat pain, anxiety, cancers and neurological conditions. Taxonomy In the classification system of Dahlgren the Gentiales were in the superorder Gentianiflorae (also called Gentiananae). The following families are included according to the APG III system: * Family Apocynaceae (424 genera) * Family Gelsemiaceae (2 genera) * Family Gentianaceae (87 genera) * Family Loganiaceae (13 genera) * Family Rubiaceae (611 genera) Phylogeny The following phylogenetic tree is based on molecular phylogenetic studies of DNA sequences. Etymology It takes its name from the family Gentianaceae, which in turn is based on the name of the type genus, ''Gentiana''. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrtanae
The Myrtales are an order of flowering plants placed as a sister to the eurosids II clade as of the publishing of the ''Eucalyptus grandis'' genome in June 2014. The APG III system of classification for angiosperms still places it within the eurosids. This finding is corroborated by the placement of the Myrtales in the Malvid clade by the One Thousand Plant Transcriptomes Initiative. The following families are included as of APGIII: * Alzateaceae S. A. Graham * Combretaceae R. Br. ( leadwood family) * Crypteroniaceae A. DC. * Lythraceae J. St.-Hil. ( loosestrife and pomegranate family) * Melastomataceae Juss. (including Memecylaceae DC.) * Myrtaceae Juss. (myrtle family; including Heteropyxidaceae Engl. & Gilg, Psiloxylaceae Croizat) * Onagraceae Juss. (evening primrose and Fuchsia family) * Penaeaceae Sweet ex Guill. (including Oliniaceae Arn., Rhynchocalycaceae L. A. S. Johnson & B. G. Briggs) * Vochysiaceae A. St.-Hil. The Cronquist system gives essentially the same co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loasanae
Loasaceae is a family of 15–20 genera and about 200–260 species of flowering plants in the order Cornales, native to the Americas and Africa. Members of the family include annual, biennial and perennial herbaceous plants, and a few shrubs and small trees. Members of the subfamily Loasoideae are known to exhibit rapid thigmonastic stamen movement when pollinators are present. Taxonomy In the classification system of Dahlgren the Loasaceae were placed in the order Loasales in the superorder Loasiflorae (also called Loasanae). The Angiosperm Phylogeny Group system places them in the related order Cornales in the asterid clade. Subdivision Genera include: *''Aosa'' Weigend (sometimes included in ''Loasa'') *'' Blumenbachia'' Schrad. *'' Caiophora'' C. Presl *'' Cevallia'' Lag. *'' Chichicaste'' Weigend (sometimes included in ''Loasa'') *'' Eucnide'' Zucc. *'' Fuertesia'' Urb. *'' Grausa'' Weigend & R.H.Acuña *'' Gronovia'' L. *''Huidobria'' Gay (sometimes included i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solananae
The Solanales are an order of flowering plants, included in the asterid group of dicotyledons. Some older sources used the name Polemoniales for this order. Taxonomy Under the older Cronquist system, the latter three families were placed elsewhere, and a number of others were included: * Family Duckeodendraceae (now treated as a synonym of Solanaceae) * Family Nolanaceae (now treated as a synonym of Solanaceae) * Family Cuscutaceae (now treated as a synonym of Convolvulaceae) * Family Retziaceae (now treated as a synonym of Stilbaceae, order Lamiales) * Family Menyanthaceae (now placed in order Asterales) * Family Polemoniaceae (now placed in order Ericales) * Family Hydrophyllaceae (now treated as a synonym of Boraginaceae) In the classification system of Dahlgren the Solanales were in the superorder Solaniflorae (also called Solananae). The following families are included here in newer systems such as that of the Angiosperm Phylogeny Group (APG): * Family Solanace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteranae
Asterales () is an order of dicotyledonous flowering plants that includes the large family Asteraceae (or Compositae) known for composite flowers made of florets, and ten families related to the Asteraceae. While asterids in general are characterized by fused petals, composite flowers consisting of many florets create the false appearance of separate petals (as found in the rosids). The order is cosmopolitan (plants found throughout most of the world including desert and frigid zones), and includes mostly herbaceous species, although a small number of trees (such as the ''Lobelia deckenii'', the giant lobelia, and ''Dendrosenecio'', giant groundsels) and shrubs are also present. Asterales are organisms that seem to have evolved from one common ancestor. Asterales share characteristics on morphological and biochemical levels. Synapomorphies (a character that is shared by two or more groups through evolutionary development) include the presence in the plants of oligosaccha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornanae
The Cornales are an order of flowering plants, early diverging among the asterids, containing about 600 species. Plants within the Cornales usually have four-parted flowers, drupaceous fruits, and inferior to half-inferior gynoecia topped with disc-shaped nectaries. Taxonomy In the classification system of Dahlgren the Cornales were in the superorder Corniflorae (also called Cornanae). Under the APG IV system, the Cornales order includes these families: * Cornaceae (the dogwood family) * Curtisiaceae (cape lancewood) * Grubbiaceae (the sillyberry family) * Hydrangeaceae (the hydrangea family) * Hydrostachyaceae * Loasaceae (the stickleaf family) * Nyssaceae, (the tupelos) The oldest fossils assigned with confidence to the order are '' Hironoia fusiformis'', described from Coniacian age Japanese coalified fruits, and '' Suciacarpa starrii'' described from American permineralized fruits of Campanian age. Phylogeny The Cornales order is sister to the remainder of the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosanae
Rosales () is an order of flowering plants. Peter F. Stevens (2001 onwards). "Rosales". At: Trees At: Angiosperm Phylogeny Website. At: Missouri Botanical Garden Website. (see ''External links'' below) It is sister to a clade consisting of Fagales and Cucurbitales. It contains about 7,700 species, distributed into about 260 genera. Rosales comprise nine families, the type family being the rose family, Rosaceae. The largest of these families are Rosaceae (90/2500) and Urticaceae (54/2600). The order Rosales is divided into three clades that have never been assigned a taxonomic rank. The basal clade consists of the family Rosaceae; another clade consists of four families, including Rhamnaceae; and the third clade consists of the four urticalean families.Douglas E. Soltis, et alii. (28 authors). 2011. "Angiosperm Phylogeny: 17 genes, 640 taxa". ''American Journal of Botany'' 98(4):704-730. The order Rosales is strongly supported as monophyletic in phylogenetic analyses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteanae
Proteales is an order of flowering plants consisting of three (or four) families. The Proteales have been recognized by almost all taxonomists. The representatives of the Proteales are very different from each other. The order contains plants that do not look alike at all. What they have in common is seeds with little or no endosperm. The ovules are often atropic. Families In the classification system of Dahlgren the Proteales were in the superorder Proteiflorae (also called Proteanae). The APG II system of 2003 also recognizes this order, and places it in the clade eudicots with this circumscription: * order Proteales :* family Nelumbonaceae :* family Proteaceae family Platanaceae">Platanaceae.html" ;"title=" family Platanaceae"> family Platanaceae with "+ ..." = optionally separate family (that may be split off from the preceding family). The APG III system of 2009 followed this same approach, but favored the narrower circumscription of the three families, firmly recog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutanae
Sapindales is an order of flowering plants. Well-known members of Sapindales include citrus; maples, horse-chestnuts, lychees and rambutans; mangos and cashews; frankincense and myrrh; mahogany and neem. The APG III system of 2009 includes it in the clade malvids (in rosids, in eudicots) with the following nine families: *Anacardiaceae *Biebersteiniaceae *Burseraceae *Kirkiaceae *Meliaceae *Nitrariaceae (including Peganaceae and Tetradiclidaceae) *Rutaceae * Sapindaceae *Simaroubaceae The APG II system of 2003 allowed the optional segregation of families now included in the Nitrariaceae. In the classification system of Dahlgren the Rutaceae were placed in the order Rutales, in the superorder Rutiflorae (also called Rutanae). The Cronquist system of 1981 used a somewhat different circumscription, including the following families: *Staphyleaceae *Melianthaceae * Bretschneideraceae *Akaniaceae * Sapindaceae *Hippocastanaceae *Aceraceae *Burseraceae *Anacardiaceae * J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
