1. Lescuraea Bruch & Schimp. in B.S.G. 多毛藓属 duo-mao xian shu
Bryol. Eur. 5: 101. 1851.
Pseudoleskea sect. Lescuraea (Bruch & Schimp. in B.S.G.) Best, Bull. Torrey Bot. Club 27: 233. 1900.
Pseudoleskea Bruch & Schimp. in B.S.G., Bryol. Eur. 5: 147. 1852.
Ishibaea Broth. & Okam., Bot. Mag. (Tokyo) 29: 186. 1915.
Plants slender, delicate, bright green to yellowish green, slightly shiny, in mats. Primary stems prostrate, regularly to irregularly sparsely branched; branches with dense leaves, erect or curved, obtuse at tips; paraphyllia few to abundant on stems, sparse on branches, short, filiform or triangularly lanceolate. Stem leaves oblong-ovate, narrowly decurrent at base, acuminate upward; margins plane or recurved, serrate above; costa single, thick, strong, up to or ending below leaf apex, projecting at tips; leaf cells thin-walled, elongate to linear; upper cells often projecting at upper ends on back surfaces; alar cells quadrate to flatly quadrate; branch leaves similar to stem leaves, slightly narrower and smaller, costa more distinctly projecting on the back. Dioicous. Inner perichaetial leaves larger than stem leaves, long-sheathing at base, narrowly acuminate above, entire, costa short. Perigonia on stems or branches. Setae elongate, erect, smooth; capsules erect, symmetric or pendent, asymmetric; annuli differentiated; peristome double; exostome teeth narrowly lanceolate, fused at base, transversely striolate below, smooth or finely papillose; endostome segments membranous, smooth or finely papillose; basal membrane high or low; cilia usually absent; opercula conic, with short and erect rostrum. Spores medium-sized, papillose.