Abstract
Rhopalostroma species were collected from Northern Thailand and subjected to morph-molecular analysis. One species possessed small, clavate stromata, with short and stout stipes, asci with an amyloid apical apparatus and ellipsoidal, dark as-cospores with germ slits. Morphology and combined phylogenetic analysis of ITS, LSU, beta-tubulin and RPB2 sequence data, showed it to be a new Rhopalostroma species introduced herein as R. brevistipitatum. A nodulisporium-like asexual morph was produced in culture. A morphological description and photographs of R. brevistipitatum are provided in this paper, with amendments to the generic description.