Ophiorrhiza meghalayensis (Rubiaceae: Ophiorrhizeae), a new species from Meghalaya, North-East India

Abstract

A new species of Rubiaceae, Ophiorrhiza meghalayensis Hareesh, A.Joe, M.Sabu & L.Wu is described from Meghalaya, North-East India. This species is allied to Ophiorrhiza caudipetala Deb & Mondal and O. hirsutula Wight ex Hooker but can be distinguished from the latter by its triangular calyx lobes, corolla without villous ring within and deeply keeled corolla lobes. Detailed description, distribution, ecology, phenology and relevant taxonomic notes are provided along with colour photographs.