Warnstorfia

Autoicous. In mineral poor fens. Stems sparsely to densely subpinnately branched and radiating in all directions, with sparse rhizoids in rows or at scattered points along length; outer pseudoparaphyllia triangular to lanceolate; central strand present. Stem leaves larger and sometimes broader than branch leaves otherwise similar, triangular to ovate, erect and straight to falcate-secund when moist, scarcely altered when dry, short-decurrent or not decurrent at base, sometimes bearing rhizoids; apex acuminate to obtuse; costa single, extending 1/2–4/5 leaf length, or occasionally double and shorter; margin entire to denticulate, plane; laminal cells linear, shorter at base, smooth, unistratose; alar cells differentiated, quadrate or rectangular, inflated, hyaline, forming an indistinctly defined triangular or quadrate region. Capsule inclined to horizontal, curved, cylindric, with an annulus. Calyptra cucullate, smooth, glabrous. Operculum conic. Peristome double; endostome segments same height as exostome, with a high basal membrane; cilia present.