8. Palamocladium Müll. Hal. 褶叶藓属 zhe ye xian shu
Flora 82: 465. 1896. Pleuropus subgen. Palamocladium (Müll. Hal.) Broth., Nat. Pflanzenfam. I(3): 1138. 1909.
Pleuropus Griff., Calcutta J. Nat. Hist. 2: 473. 1842, hom. illeg.
Plants medium-sized to rather robust, somewhat stiff, green, yellowish green, or brownish, glossy, in loose mats. Stems prostrate, radiculose or stoloniform, subpinnately branched; branches ascending or curved; central strand present. Stem and branch leaves similar, erect-spreading, often secund when dry, lanceolate to ovate-lanceolate or somewhat triangular-lanceolate, plicate, slenderly acuminate toward apex; margins usually sharply serrate nearly throughout to the base; costae single, nearly percurrent; median leaf cells elongate-elliptical or linear, thick-walled, often porose; alar cells small, quadrate, differentiated in a small group. Dioicous. Perichaetial leaves lanceolate, gradually or abruptly acuminate. Setae elongate, reddish, smooth; capsules erect, symmetric, elongate-ellipsoidal to shortly cylindrical, with short necks; opercula long conic-rostrate; annuli developed; peristome double; exostome teeth lanceolate, papillose throughout, cross-striolate at base; endostome segments linear, keeled, papillose; basal membrane high; cilia present, reduced or absent. Calyptrae cucullate, smooth. Spores spherical, finely papillose.