Hoya somadeeae sp. nov. (Apocynaceae, Asclepiadoideae) Thailand and lectotypification of Hoya wrayi
A new species from evergreen montane forests of Thailand, Hoya somadeeae Rodda Simonsson is here described and illustrated. The new species may be superficially confused with the Peninsular Malaysia endemic H. wrayi King Gamble, but is clearly separated from it by the very elongated peduncles, up to 20 cm long, the revolute corollas, and outer processes of corona lobes with a membranaceous basal appendage. Morphological affinities between the new species and other Hoya species from Thailand and neighbouring Myanmar and Peninsular Malaysia are discussed.