Craspedodidymum nigroseptatum sp nov., a new hyphomycete on palms from Brunei Darussalam

Craspedodidymum nigroseptatum sp. nov, is described and illustrated based o n specimens collected on decaying rachides of Oncosperma horridum in Brunei Darussalam. It differs from other species of Craspedodidymum in producing dark brown conidia with three to four thick, darkly-pigmented septa, and a paler basal cell. Conidia are broadly ellipsoidal to obovoid and truncate a t the base. Craspedodidymum nigroseptatum is compared with other species in the genus and a key to the genus is provided.