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UNC Herbarium |
 | | If a greater number of ranks of taxa is desired, the terms for these are made by adding the prefix "sub-" to the terms denoting the principal or secondary ranks. |
| | A plant may thus be assigned to taxa of the following ranks (in descending sequence): regnum, subregnum, divisio or phylum, subdivisio or subphylum, classis, subclassis, ordo, subordo, familia, subfamilia, tribus, subtribus, genus, subgenus, sectio, subsectio, series, subseries, species, subspecies, varietas, subvarietas, forma, subforma” (Greuter et al. |
| | For now, I am primarily using variety where choices exist, but accepting subspecies where an equivalent varietal name does not exist. |
| www.herbarium.unc.edu /philosophy.htm (811 words) |
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