Stem rounded-pentagonal in section. Leaves naviculate, ovate to ovate-lanceolate or long-lanceolate, distal margins erect, entire, not bordered; apex blunt or rounded acute, seldom acute, cucullate; basal cells differentiated across leaf base as a U, commonly running up margins as a very narrow band of nonpapillose cells, not distinctly enlarged submarginally; distal laminal cells pluripapillose with low papillae; mucro conic, of 3-6 cells. Sexual condition dioicous; known only from perichaetiate plants in the flora area.