Pseudoscleropodium purum

Dioicous. Loosely interwoven mats on soil, green or yellow green. Stems mostly ascending, (20–) 60–100 (–150) mm long, pinnately or subpinnately branched, yellow, with fascicles of red-brown rhizoids, central strand present, with branches mostly 8–15 mm long. Stem and branch leaves differentiated only by size, loosely erect, imbricate, broadly oblong-ovate to nearly cochleariform, strongly concave, often weakly plicate or wrinkled when dry; costae single, extending 1/2–2/3 leaf length, not ending in abaxial spine; apices apiculate, reflexed; margins denticulate toward apices, plane or narrowly recurved at base; cells linear, 46–85 μm long, c. 4 μm wide, smooth, shorter near base; alar cells thick-walled, subquadrate to short-irregular, forming a small and poorly defined concave group; stem leaves mostly 1.5–2.4 mm long, (0.8–) 1–1.5 (–1.8) mm wide; branch leaves 1.2–1.5 mm long, c. 0.8 mm wide. Setae 20–53 mm long, red or brown, smooth. Capsules inclined to pendent, short-cylindric, curved, 1.5–2.5 mm long. Operculum conic-apiculate to shortly-rostrate, 0.7–1 mm long.