|
Archichlamydeae
Polypetalae was a taxonomic grouping used in the identification of plants, but it is now considered to be an artificial group, one that does not reflect evolutionary history. The grouping was based on similar morphological plant characteristics. Polypetalae was defined as including plants with the petals free from the base or only slightly connected. Members of Polpetalae contain bitegmic ovules (i.e., ovules having two integuments). See also *Plant identification * Calyciflorae Calyciflorae is a grouping of plants that is no longer used by botanists. Augustin Pyramus de Candolle defined it as a subclass within the class Dicotyledoneae The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the ... External links *For an illustrated summary of polypetalae, sebotanic gardens information*John Shaffner's key (1911)in the ''Ohio Naturalist' Historically recognized angiosperm taxa {{botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creeping Butercup Close 800
Creep, Creeps or CREEP may refer to: People * Creep, a creepy person Politics * Committee for the Re-Election of the President (CRP), mockingly abbreviated as CREEP, an fundraising organization for Richard Nixon's 1972 re-election campaign Arts, entertainment, and media Films * ''Creeps'' (film), a 1956 short starring the Three Stooges * ''The Creeps'' (film), a 1997 film directed by Charles Band * ''Creep'' (2004 film), a 2004 British-German horror film * ''Creep'' (2014 film), an American found-footage horror film ** ''Creep 2'', 2017 American found-footage horror film; sequel to the 2014 film Gaming * "Creep", a carpet of bio-matter Zerg colonies produce in the ''StarCraft'' video game franchise Literature * ''Creeps'' (novel), 2013 young adult novel by Darren Hynes * '' The Creeping'', 2015 young adult novel by Alexandra Sirowy Music Groups * Creep (band), American electronic music band * Deli Creeps, an avant-garde band from San Francisco (1990–2007) * The Creeps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Identification
In biology, determination is the process of matching a specimen of an organism to a known taxon, for example identifying a plant. The term is also used in cellular biology, where it means the act of the differentiation of stem cells becoming fixed. Various methods are used, for example single or multi-access identification keys. Overview The need to identify which plant is which has existed for time immemorial. The ability depends to a large extent on what criteria and whose system is used. Determination now relies on modern taxonomy to define the identify of organisms. Taxonomy is the branch of biology which deals with identity, nomenclature and classification. The term was first coined in 1813 by Swiss botanist Augustin Pyramus de Candolle. Carl Linnaeus, who began modern taxonomy, used the term 'systematics' himself. Determination then requires comparisons of certain characteristics and then assigning a particular specimen to a known taxonomic group, hopefully ultimate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calyciflorae
Calyciflorae is a grouping of plants that is no longer used by botanists. Augustin Pyramus de Candolle defined it as a subclass within the class Dicotyledoneae. It overlapped largely with the modern Rosids group. The group Calyciflorae was defined as: * Flowers with sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coine ...s united at least at the base ( gamosepalous), a "torus" (disc) at the base of the calyx from which the petals and stamens appear to emerge, the ovary either free or attached to the calyx. See also * De Candolle system References Historically recognized angiosperm taxa {{angiosperm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
