AbstractTwo newRicciaspecies,R. somaliensisandR. erubescensfrom Africa are described and illustrated. They are both classified in the subgenusRiccia, sectionRiccia. R. somaliensishas hyaline, somewhat frilly scales and apolar, wingless spores;R. erubescenshas shiny dark, purple-red to bright cherry-red scales and polar, winged spores with numerous small areolae; its tissues are sometimes distorted by gelatinous globules that are gradually extruded on the dorsal surface.