Тема: Acomastylis
Протолог рода Acomastylis Greene (Leaflets of Botanical Observation and Criticism 1: 174. 1906 [23 Jan 1906]; lectotype: Acomastylis rossii (R.Br.) Greene (Sieversia rossii R.Br.), chosen by: Rydb. N. Amer. Fl. 22(5): 412. 1913 [23 Dec 1913]):