Petchsri, S., Zhang, L.-B. & Jaruwattanaphan, T. (2022)

Ophioglossum isanense sp. nov. (Ophioglossaceae, Pteridophyta) from Thailand

. Phytotaxa 533 (3): 158–164. https://doi.org/10.11646/phytotaxa.533.3.1