Islas-Hernández, C.S., Lozada-Pérez, L. & Alvarado-Cárdenas, L.O. (2017)

A new species of Spigelia L. (Loganiaceae) from Mexico

. Phytotaxa 303 (2): 118–124. https://doi.org/10.11646/phytotaxa.303.2.2