Jasminanthes tuyetanhiae (Apocynaceae, Asclepiadoideae), a New Species from Vietnam, and J. pilosa New for Vietnam

Abstract

Jasminanthes tuyetanhiae T.B. Tran & Rodda (Apocynaceae, Asclepiadoideae) is described as a new species from Vietnam. It differs from the morphologically similar J. chunii by its shorter peduncles and by the triangular-ovate calyx lobes. Jasminanthes pilosa, earlier known from China and Thailand, is lectotypified and newly recorded for the flora of Vietnam, fully described and for the first time colour photographs are provided. An appendix with key characters for the separation of all seven Jasminanthes species as well as the key to the species of Jasminanthes are included