Template:Robinson & Greenman, 1895
- Robinson, B.L. & Greenman, J.M. 1895. Contributions from the Gray Herbarium of Harvard University, New Series, No. IX. - I. On the Flora of the Galápagos Islands, as shown by the collection of Dr. G. Baur. American Journal of Science, and Arts, ser. 3, 50: 135–149. BHL