Goniomitrium

Paroicous. Asexual reproduction rarely by rhizoidal tubers (not in Victoria). Plants scattered or gregarious on soil. Stems very short, to c. 2 mm long, simple or rarely forked, covered in rhizoids near base; central strand weak. Leaves ovate to obovate-spathulate, erect- or wide-spreading when moist, appressed and sometimes moderately contorted when dry; apex obtuse, apiculate, acute or acuminate, sometimes piliferous; costa absent, weakly developed and short, narrow and discontinuous or well developed (not in Victoria) and percurrent to excurrent; margins entire, plane, without a border; laminal cells hexagonal, rhomboidal, oblong or quadrate, often more oblong and larger toward base; alar cells not differentiated. Seta smooth. Capsules erect, symmetric, immersed to shortly-exserted, ellipsoid to globose before dehiscence, globose, cupulate or somewhat pyriform after dehiscence, with a weakly differentiated annulus, with numerous stomata. Calyptra mitrate, with a stout short rostrum, with 8 radial pleats, 8-lobed at base, completely covering immature capsule and often persisting after dehiscence, toothed near apex. Operculum plano-convex. Peristome absent. Spores large, usually greater than 50 μm diameter.