blah blah blah who cares about this stuffIf a segregate is generally accepted as a 'good' taxon it ceases to be a segregate. Thus, this is a way of indicating change in the taxonomic status. It should not be confused with, for example, the subdivision of a genus into subgenera. In biology, a subgenus is a taxonomic grade intermediate between genus and species. ...
Species See text. ... Episcia is genus of tropical plants from West Indies and Central America, belonging to the family Gesneriaceae. ... Binomial name Filipendula ulmaria (L.) Maxim. ... Species Aruncus aethusifolius Aruncus dioicus Aruncus gombalanus Aruncus sylvester Aruncus is a genus of herbaceous plants in the Rosaceae, subfamily Spiraeoideae. ... This article or section does not cite its references or sources. ...
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A more detailed explanation, with multiple examples on mushrooms.