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De Jussieu System
An early system of plant taxonomy developed by Antoine Laurent de Jussieu (1748 – 1836), the ''de Jussieu System (1789), is of great importance as a starting point of botanical nomenclature at the rank of family, together with Michel Adanson's ''Familles naturelles des plantes'' (1763). While Adanson introduced the concept of families, Jussieu arranged them hierarchically into Divisions, Classes and Orders (equivalent to families), in his seminal ''Genera plantarum''. After the publication of ''Genera plantarum'' Jussieu published many memoirs further developing the description and circumscription of families. His final sysyem was published posthumously in 1837, a year after his death. Organization * Index: Structured p. lxiii, Alphabetical p. 454 * Overview: Page lxii - Classes and orders The main groups recognized are: * I. Acotyledones * II. Monocotyledones * III. Dicotyledones Further subdivided by the position of the stamens and calyx in reference ... [...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 taxonomic system is a coherent whole of taxonomic judgments on 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 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. A milestone event was the publication of ''Species Plantarum'' by Linnaeus which serve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commelinaceae
Commelinaceae is a family of flowering plants. In less formal contexts, the group is referred to as the dayflower family or spiderwort family. It is one of five families in the order Commelinales and by far the largest of these with about 731 known species in 41 genera. Well known genera include ''Commelina'' (dayflowers) and ''Tradescantia'' (spiderworts). The family is diverse in both the Old World tropics and the New World tropics, with some genera present in both. The variation in morphology, especially that of the flower and inflorescence, is considered to be exceptionally high amongst the angiosperms. The family has always been recognized by most taxonomists. The APG III system of 2009 (unchanged from the APG system of 1998), also recognizes this family, and assigns it to the order Commelinales in the clade commelinids in the monocots. The family counts several hundred species of herbaceous plants. Many are cultivated as ornamentals. The stems of these plants are genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cisti
The National Science Library (NSL), formerly known as the Canada Institute for Scientific and Technical Information or CISTI, began in 1917 as the library of the National Research Council of Canada (NRC). NRC is the Government of Canada's premier research and technology organization (RTO), working with clients and partners to provide innovation support, strategic research, scientific and technical services. The library took on the role of national science library unofficially in 1957 and became the official National Science Library in 1966. The National Science Library is located in Ottawa, Ontario, and houses one of the world's most comprehensive collections of publications in science, technology, engineering and medicine. It is part of NRC's Knowledge, Information and Technology Services Branch and provides NRC and Canada's research community with information and information services to accelerate discovery, innovation and commercialization. The NRC Research Press joined the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sapotae
240px, '' Madhuca longifolia'' var. ''latifolia'' in Narsapur, Medak district, India The Sapotaceae are a family (biology), family of flowering plants belonging to the order (biology), order Ericales. The family includes about 800 species of evergreen trees and shrubs in around 65 genera (35-75, depending on generic definition). Their distribution is pantropical. Many species produce edible fruits, or white blood-sap that is used to cleanse dirt, organically and manually, while others have other economic uses. Species noted for their edible fruits include ''Manilkara'' (sapodilla), ''Chrysophyllum cainito'' (star-apple or golden leaf tree), and ''Pouteria'' ('' abiu, canistel, lúcuma'', mamey sapote). ''Vitellaria paradoxa'' (''shi'' in several languages of West Africa and ''karité'' in French; also anglicized as shea) is also the source of an oil-rich nut, the source of edible shea butter, which is the major lipid source for many African ethnic groups and is also used in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lysimachiae
The Primulaceae , commonly known as the primrose family (but not related to the Onagraceae, evening primrose family), are a family (biology), family of Herbaceous plant, herbaceous and woody flowering plants including some favourite garden plants and wildflowers. Most are Perennial plant, perennial though some species, such as Anagallis arvensis, scarlet pimpernel, are annual plant, annuals. Previously one of three families in the Order (biology), order Primulales, it underwent considerable genus, generic re-alignment once molecular phylogenetic methods were used for taxonomic classification. The order was then submerged in a much enlarged order Ericales and became a greatly enlarged Primulaceae ''sensu lato'' (''s.l''). In this new classification of the Angiosperm Phylogeny Group, each of the Prumulales families was reduced to the rank of subfamily of Primulaceae ''s.l.'' The original Primulaceae (Primulaceae ''sensu stricto'' or ''s.s.'') then became subfamily Primuloideae, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocharides
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species (Christenhusz & Byng 2016), that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed, and frogbit. The family includes both freshwater and marine aquatics. They are found throughout the world in a wide variety of habitats, but are primarily tropical. Description The species are annual or perennial, with a creeping monopodial rhizome with the leaves arranged in two vertical rows, or an erect main shoot with roots at the base and spirally arranged or whorled leaves. The leaves are simple and usually found submerged, though they may be found floating or partially emerse. As with many aquatics they can be very variable in shape – from linear to orbicular, with or without a petiole, and with or without a sheathing base. The flowers are arranged in a forked, spathe-like bract or between two opposite bracts. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musae
Musaceae is a family of flowering plants composed of three genera with about 91 known species, placed in the order Zingiberales. The family is native to the tropics of Africa and Asia. The plants have a large herbaceous growth habit with leaves with overlapping basal sheaths that form a pseudostem making some members appear to be woody trees. In most treatments, the family has three genera, '' Musella'', ''Musa'' and ''Ensete''. Cultivated bananas are commercially important members of the family, and many others are grown as ornamental plants. Taxonomy The family has been practically universally recognized by taxonomists, although with differing circumscriptions. Older circumscriptions of the family commonly included the genera now included in Heliconiaceae and Strelitziaceae. The APG III system, of 2009 (unchanged from the APG system, 1998), assigns Musaceae to the order Zingiberales in the clade commelinids in the monocots. Genera As currently circumscribed the family in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridaceae
Iridaceae is a family of plants in order Asparagales, taking its name from the irises, meaning rainbow, referring to its many colours. There are 66 accepted genera with a total of c. 2244 species worldwide (Christenhusz & Byng 2016). It includes a number of other well known cultivated plants, such as freesias, gladioli and crocuses. Members of this family are perennial plants, with a bulb, corm or rhizome. The plants grow erect, and have leaves that are generally grass-like, with a sharp central fold. Some examples of members of this family are the blue flag and yellow flag. Name and history The family name is based on the genus ''Iris'', the largest and best known genus in Europe. This genus dates from 1753, when it was coined by Swedish botanist, Carl Linnaeus. Its name derives from the Greek goddess, Iris, who carried messages from Olympus to earth along a rainbow, whose colours were seen by Linnaeus in the multi-hued petals of many of the species. The family is current ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcissi
''Narcissus'' is a genus of predominantly spring flowering perennial plants of the amaryllis family, Amaryllidaceae. Various common names including daffodil,The word "daffodil" is also applied to related genera such as ''Sternbergia'', ''Ismene'' and ''Fritillaria meleagris''. It has been suggested that the word "Daffodil" be restricted to the wild species of the British Isles, ''N. pseudonarcissus''. narcissus, and jonquil are used to describe all or some members of the genus. ''Narcissus'' has conspicuous flowers with six petal-like tepals surmounted by a cup- or trumpet-shaped corona. The flowers are generally white and yellow (also orange or pink in garden varieties), with either uniform or contrasting coloured tepals and corona. ''Narcissus'' were well known in ancient civilisation, both medicinally and botanically, but formally described by Linnaeus in his ''Species Plantarum'' (1753). The genus is generally considered to have about ten sections with approximately 50 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthorrhoeaceae
''Xanthorrhoea'' () is a genus of about 30 species of flowering plants endemic to Australia. Species are known by the name grass tree. Description All are perennials and have a secondary thickening meristem in the stem. Many, but not all, species develop an above ground stem. The stem may take up to twenty years to emerge. Plants begin as a crown of rigid grass-like leaves, the caudex slowly growing beneath. The main stem or branches continue to develop beneath the crown, This is rough-surfaced, built from accumulated leaf-bases around the secondarily thickened trunk. The trunk is sometimes unbranched, some species will branch if the growing point is damaged, and others naturally grow numerous branches. Flowers are borne on a long spike above a bare section called a scape; the total length can be over three four metres long in some species. Flowering occurs in a distinct flowering period, which varies for each species, and often stimulated by bushfire. Fires will burn the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromeliaceae
The Bromeliaceae (the bromeliads) are a family of monocot Monocotyledons (), commonly referred to as monocots, (Lilianae ''sensu'' Chase & Reveal) are grass and grass-like flowering plants (angiosperms), the seeds of which typically contain only one Embryo#Plant embryos, embryonic leaf, or cotyledon. Th ... flowering plants of about 80 genera and 3700 known species, native mainly to the Tropics, tropical Americas, with several species found in the American subtropics and one in tropical west Africa, ''Pitcairnia feliciana''. It is among the basal (phylogenetics), basal families within the Poales and is the only family within the order that has Septal nectary, septal nectaries and Ovary (plants), inferior ovaries.Judd, Walter S. Plant systematics a phylogenetic approach. 3rd ed. Sunderland, MA: Sinauer Associates, Inc., 2007. These Ovary (plants), inferior ovaries characterize the Bromelioideae, a subfamily of the Bromeliaceae. The family includes both epiphytes, such as Spanis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liliales
Liliales is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots. This order of necessity includes the family Liliaceae. The APG III system (2009) places this order in the monocot clade. In APG III, the family Luzuriagaceae is combined with the family Alstroemeriaceae and the family Petermanniaceae is recognized. Both the order Lililiales and the family Liliaceae have had a widely disputed history, with the circumscription varying greatly from one taxonomist to another. Previous members of this order, which at one stage included most monocots with conspicuous tepals and lacking starch in the endosperm are now distributed over three orders, Liliales, Dioscoreales and Asparagales, using predominantly molecular phylogenetics. The newly delimited Liliales is monophyletic, with ten families. Well known plants from the order include ''Lilium'' (lily), tulip, the North American wildflower ''Tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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