| At the subgeneric level, the classification of Valeriana in subgenera and sections is difficult. |
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| These ingroup species were chosen to represent each of the proposed subgenera and genera from previous phylogenetic studies. |
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| Popov's monograph of Cenozoic cardiid shell microstructure includes more than 62 genera and subgenera and 150 species. |
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| Species and not genera or subgenera are considered the most appropriate units in biodiversity studies. |
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| Most of the traditionally recognized subgenera of Anchusa are also supported as monophyletic groups by both nuclear and plastid sequence data. |
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| The genus is about equally divided into two subgenera, those with pedicellate flowers and those with sessile flowers. |
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| Several genera that are at times segregated from Atriplex have been variously treated as subgenera or sections, or simply placed in synonymy with Atriplex. |
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| This foraging profile overlapped with those of all anthophilous insect families, all bee subgenera, and all species of nectarivorous birds that were encountered. |
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| Siegfried Jost Casper systematically divided them into three subgenera with 15 sections. |
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| Recent classification systems of the genus recognize ten to thirteen species in two distinct subgenera, Engleriana and Fagus. |
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| Past authors have attempted to arrange related forms of this larger group into a number of complexes or species groups or subgenera. |
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| Nevertheless, several Lutzomyia species can transmit both, representatives of the Viannia and Leishmania subgenera. |
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| The genus, which includes about 75 species, is divided into four subgenera. |
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| The most comprehensive monograph of the genus divides Rhynchospora into two subgenera and 29 sections. |
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| Fernandes proposed two subgenera based on basal chromosome number, and then subdivided these into ten sections as did Blanchard. |
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| The unrooted cladogram to the right shows the relationship between various subgenera and classes as defined by the analysis of Rivadavia et al. |
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| More recently, work has been done by Upson and Andrews, and currently Lavandula is considered to have three subgenera. |
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| The genus Craugastor is divided into three subgenera, each with a distinct series of species. |
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| Species of this subgenus have reduced chaetotaxy on their first walking legs, which distinctly separates them from members of the subgenus Unionicola and other subgenera. |
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| Well over 5000 species of water mites are recognized worldwide, representing more than 300 genera and subgenera in over 100 families and subfamilies. |
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| There are about 75 species, and these are divided between four subgenera. |
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| The two largest subgenera are further divided into sections. |
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