Triquetrella tristicha (Müll.Hal.) Müll.Hal.

Plants medium-sized, slender, in loose cushions or mats, yellow-green to dark green, brownish below; terricolous or saxicolous. Stems erect or inclined, to 25 mm long, rarely branched; in section triangular, central strand absent, inner cortical cells large, incrassate, yellowish, outer cortical cells in 1-2 rows, stereids, reddish yellow; axillary hairs 6-8 cells long, cylindrical, 1-2 basal cells very short, hyaline throughout. Leaves distant below, crowded above, 3-ranked, appressed, twisted dry, patent wet; ovate to broadly ovate or oval, 1.2-2.0 mm long; apex acuminate; base decurrent; margins recurved to mid-leaf, entire. Costa percurrent to subpercurrent; ventral superficial cells rectangular, smooth, dorsal superficial cells own from the Northern Hemisphere. The other species Southern Africa, and the Subantarctic Islands. Several the present separation of many of the species is very rectangular to quadrate above, papillose; in distal section round to subround, frequently undifferentiated, especially in upper leaf, cells irregularly placed, incrassate; in proximal section guide cells 2, large, incrassate, ventral stereid band of 1-2 cells, surface cells undifferentiated, dorsal stereid band weak, 1-2 rows thick, dorsal surface cells sub-stereids, outer wall strongly incrassate. Upper laminal cells quadrate to short-rhombic, incrassate, in regular rows, papillae strong, spinose or bifid, mostly 1 per cell; basal cells undifferentiated or with small group of rectangular, smooth cells at insertion near costa. ?Dioicous. Perigonia gemmate, leaves sheathing, oval-acuminate, laminal cells rhomboid, smooth. Other parts not seen.