Fungi from palms. XXXIX. Asymmetricospora gen. et sp. nov. (Melanommataceae)

The genus Asymmetricospora (Melanommataceae, Melannomatales) is introduced here to accommodate a single species, A. calamicola, which has immersed asc omata, fissitunicate asci and a hamathecium of trabeculae. It is separated from other Melanommataceous genera by the absence of a subiculum, the absen ce of short dark setae around the papilla, and its asymmetric ascospore mor phology. Astrosphaeriella is the most similar in overall appearance, but As ymmetricospora differs in ostiole and ascospore morphology and in the coale scing ascomata (i.e, the fruiting bodies of Asymmetricospora calamicola con tain more than one locule, those of Astrosphaeriella normally one).