Joseph, J. and Vajravelu, E. 1981. <I>Thrixspermum muscaeflorum</I> Rao & Joseph Var. <I>Nilagiricum</I> Joseph & Vajravelu-Orchidaceae-a new variety from Nilgiri Hills South India. Indian Forester. 107, 10 (Oct. 1981), 648–651. DOI:https://doi.org/10.36808/if/1981/v107i10/11088.