Dulacia crassa (Monachino) Sleumer in Fl. Neotropica 38: 120. 1984 sec. B. Hansen & al. 1993
- ≡Liriosma crassa Monachino in Brittonia 13: f. 1. 1961
- Holotype: Guyana, S slope of Mt. Roraima, Arabapu creek bank, FD 7927
- Isotype: Guyana, S slope of Mt. Roraima, Arabapu creek bank, FD 7927
