melanium

Updated: May 25, 2025

Besides the lutea, there are some other species, nearly allied to tricolor, as for instance, cornuta, calcarata, and altaica, which are combined with it under the head of Melanium as a subgenus, and which together constitute a systematic unity of undoubted value, but ranging between the common conceptions of genus and species.

Hugo de Vries - Species and Varieties, Their Origin by Mutation