Fissidens beckettii Mitt.

Plants small, scattered, light green; terricolous. Stems 3-5 mm high, simple; in section subround, central strand present, cortical cells smaller toward margin, outer row sub-stereids, reddish. Leaves distant, little altered dry, erect-spreading wet; elliptical to lanceolate, 0.8-1.1 mm long; apex short-acuminate; margins entire, strongly limbate throughout; costa percurrent to short-excurrent. Vaginant laminae to mid-leaf, one blade narrowing distally, terminating on costa; dorsal lamina rounded at insertion. Laminal cells quadrate to rhombic, 12-16(-20) µm long, weakly incrassate, smooth, flat. Sporophyte not seen. Described as terminal, seta long; capsule inclined to horizontal, urn short-cylindrical; operculum short-rostrate.