CYNOGLOSSUM OBTUSICALYX (BORAGINACEAE), A NEW SPECIES FROM SOUTH-AFRICA

Cynoglossum obtusicalyx Retief & Van Wyk, a new species from the south ern Karoo, is described and illustrated. It is a perennial, softly hai ry herb with relatively large flowers and the calyx lobes markedly obt use to truncate; the nutlets are evenly covered with glochidia (hooked bristles). Pollen grains are 6-heterocolpate, with compound and simpl e colpi linked. The new species occurs on screes in relatively arid mo untainous surroundings, whereas other southern African members of the genus are mainly found in the higher rainfall areas of the Grassland B iome or along the east coast to the Cape Peninsula.