Definition of Form genus
1. Noun. (biology) an artificial taxonomic category for organisms of which the true relationships are obscure.
2. Noun. An artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms.
Definition of Form genus
1. Noun. (context: taxonomy) 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. ¹
¹ Source: wiktionary.com
Form Genus Pictures
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Lexicographical Neighbors of Form Genus
Literary usage of Form genus
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Text-book of Mycology and Plant Pathology by John William Harshberger (1917)
"... the imperfect stages of which were placed as species under the form genus ... the form genus ..."
2. Fungous Diseases of Plants: With Chapters on Physiology, Culture Methods and by Benjamin Minge Duggar (1909)
"In any case it would generally be impossible to determine the genus or even the family in which a particular imperfect fungus or form genus might be placed. ..."
3. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1914)
"... represented in the Cretaceous by at least five genera and is an important element in most Tertiary floras. The oldest known genus is the form-genus ..."
4. Contributions to the Paleobotany of Peru, Bolivia and Chile: Five Papers by Edward Wilber Berry (1922)
"... to those specimens with a demonstratable close affinity with the existing Thuja, thus limiting it to a few Tertiary species, and proposed the form-genus ..."
5. Transactions of the Massachusetts Horticultural Society.: Horticultural Hall by Massachusetts Horticultural Society, W.D. Ticknor & Co, James Englebert Teschemacher (1896)
"... of its development it would be classed by some under the form genus ... strands by the parallel interlacing of its threads, or under the form genus ..."
6. Reports Dealing with the Systematic Geology and Paleontology of Maryland by Maryland Geological Survey (1911)
"... existing subfamily of the Coniferales, a relation which because of the inconclusive nature of the remains cannot be demonstrated. As such a form-genus ..."
7. Transactions by Massachusetts Horticultural Society (1896)
"According to peculiarities of its development it would be classed by some under the form genus If/ii-nn/.n-ji/m. when it <le\*lops slender rope-like strands ..."