form genus
noun Date: 1873 an artificial taxonomic category established for organisms (as imperfect fungi) of obscure true relationships

New Collegiate Dictionary. 2001.

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  • form genus — n. a genus consisting of species superficially resembling each other but probably not closely related in their evolutionary origin …   English World dictionary

  • form genus — n an artificial taxonomic category established for organisms of which the true relationships are obscure due to incomplete knowledge of structure (as in some fossils) or of development or life history (as in the imperfect fungi and various animal …   Medical dictionary

  • form genus — noun A collection of organisms that is given formal recognition at the rank of genus with a taxonomic name, but which is known to be an artificial group rather than a natural one. All fossilized roots of scale trees are assigned to the form genus …   Wiktionary

  • form genus — form′ ge nus n. bio tax a genus made up of species, esp. of fossil forms, that bear some morphological resemblance to each other but that may not be closely related in evolutionary origin • Etymology: 1870–75 …   From formal English to slang

  • form genus — noun 1. (biology) an artificial taxonomic category for organisms of which the true relationships are obscure • Topics: ↑biology, ↑biological science • Hypernyms: ↑genus 2. an artificial taxonomic category established on the basis of morphological …   Useful english dictionary

  • form genus — Biol. an artificial taxonomic category including species, esp. of fossil forms, grouped together on the basis of morphological resemblance. [1870 75] * * * …   Universalium

  • form genus Rhizoctinia — noun form genus of imperfect fungi some species of which are now placed in genera Pellicularia and Corticium because their perfect stages have been found • Syn: ↑genus Rhizoctinia • Hypernyms: ↑fungus genus • Member Holonyms: ↑Mycelia Sterilia,… …   Useful english dictionary

  • Form classification — is the classification of organisms based on their morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move form …   Wikipedia

  • genus Pellicularia — noun genus of fungi having the hymenium in the form of a crust; some species formerly placed in form genus Rhizoctinia • Syn: ↑Pellicularia • Hypernyms: ↑fungus genus • Member Holonyms: ↑Thelephoraceae, ↑family Thelephoraceae …   Useful english dictionary

  • genus Rhizoctinia — noun form genus of imperfect fungi some species of which are now placed in genera Pellicularia and Corticium because their perfect stages have been found • Syn: ↑form genus Rhizoctinia • Hypernyms: ↑fungus genus • Member Holonyms: ↑Mycelia… …   Useful english dictionary

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