Biju, P., Josekutty, E., Kambale, S., Augustine, J. & Bruyns, P. (2020)

A new species of Ceropegia (Apocynaceae) from northern Kerala, India

. Phytotaxa 452 (2): 180–184. https://doi.org/10.11646/phytotaxa.452.2.7