5. Campyliadelphus (Kindb.) R. S. Chopra 嗜湿藓属 shi shi xian shu
Taxon. Indian Mosses 442. 1975. Hypnum sect. Campyliadelphus Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 16. 1883. Campyliadelphus (Kindb.) Kanda, J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 15: 262. 1975, comb. superfl.
Campylium sect. Campyliadelphus Broth., Nat. Pflanzenfam. I(3): 1042. 1908.
Plants small to medium-sized, green or yellowish. Stems prostrate, sometimes erect or ascending, irregularly or regularly pinnately branched; in cross section cortical cells in (2–)3–5 layers; central strand weakly differentiated; pseudoparaphyllia foliose, broadly ovate, triangular, or lanceolate; rhizoids often present at base. Stem leaves erect or slightly curved, gradually or abruptly acuminate from ovate-cordate or triangular-cordate base to a long acumen, often curved apex; costae single, reaching 1/2 the leaf length or subpercurrent, sometimes forked or double; margins nearly entire; median leaf cells linear to linear-rhomboidal, sometimes porose; basal cells rectangular or shortly rhomboidal, often thick-walled, porose; alar cells numerous, small, broadly rectangular or rectangular, thick-walled. Dioicous or autoicous. Inner perichaetial leaves erect, lanceolate, plicate; costae single, percurrent or excurrent. Setae elongate, reddish brown; capsules strongly inclined to horizontal, curved, ellipsoidal, constricted below mouth when dry; exostome teeth cross-striate below, papillose, dentate above; endostome segments well developed; basal membrane high; cilia 1–3, as long as the segments, appendiculate. Spores papillose.