Olivar, J.E.C. & Muellner-Riehl, A. (2019)

Replacement names for Cyrtandra humilis Elmer and Cyrtandra umbellata Kraenzl., two endemic Philippine species (Gesneriaceae)

. Phytotaxa 418 (1): 117–118. https://doi.org/10.11646/phytotaxa.418.1.10