<i>Tetrataenium manilalianum</i> , a new species of Apiaceae from the Western Ghats, Kerala, India

A new species, Tetrataenium manilalianum C.Rekha, Amruth., Manudev and Sujana sp. nov. (Apiaceae) is described from Kerala, India. The new species appears to be similar to T. sprengelianum (Wight and Arn.) Manden., but it differs in several morphological features, including plant height, leaf and leaflet size and shape, number and size of rays, indumentum of bracts and bracteoles, flower number, size and shape of fruits, etc. A detailed description and diagnostic morphological characters of the newly described species are provided, along with photographs, a distribution map, phenology and habitat.