Template:Robinson & Seaton, 1893
- Robinson, B.L. & Seaton, H.E. 1893. Contributions from the Gray Herbarium of Harvard University, New Series, III. Additions to the Phaenogamic Flora of Mexico, Discovered by C. G. Pringle in 1891–92. Proc. Amer. Acad. Arts 28: 103–115. BHL