Crystallopollen Steetz in Peters, Naturw. Reise Mossambique 6(Bot., 2): 363 (1864).

Type species:

C. angustifolium Steetz, designated by Robinson: 232 (1999).

Polydora Fenzl ex H.Rob. in Proc. Biol. Soc. Washington 112(1): 232 (1999), nom. illeg. superfl. pro Crystallopollen Steetz ([in Peters] 1864); Robinson et al.: 103 (2016); Swelankomo et al.: 336 (2018). Type: P. stoechadifolia Fenzl, nom. nud. = P. serratuloides (DC.) H.Rob.

[ Polydora Fenzl in Flora 27: 312 (1844), nom. nud., without description]