L. Dressler, R., and D. Bogarín. “Elleanthus Ligularis, a Name for a Relatively Common "new" Sepecies of Elleantus Sect. Chloidelyna”. Lankesteriana: International Journal on Orchidology, vol. 7, no. 3, Nov. 2007, doi:10.15517/lank.v0i0.7936.