S: (n) genus ((biology) taxonomic group containing one or more species)
S: (n) form genus (an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms)
S: (n) type genus ((biology) genus from which the name of a family or subfamily is formed; it is not necessarily the most representative genus but often the largest or best known or earliest described)
S: (n) dicot genus, magnoliopsid genus (genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination)