SUMMARYFourteen helicosporous fungi collected in Hawaii are reported and selected species illustrated.Helkorna machaerinaewhich appears to occur as a biotrophic parasite on the sedgeMachaerina angustifolia, is described and illustrated as a new species.Helicoma westoniandH. atroseptatumare reported, apparently for the first time, outside of their type localities. As there are few previous reports of helicosporous fungi in Hawaii, most of the fungi reported represent new records for the state.