Holttum (Hook.) 1986 - Holttum RE (1986) Studies in the Fern-Genera Allied to Tectaria V Triplophyllum, a New Genus of Africa and America. Kew Bulletin 41(2): 237-260. doi: 10.2307/4102928.
There is no corrections for Triplophyllum fraternum var. elongatum yet.