金毛藓科 jin mao xian ke
by Jia Yu
Plants usually rather robust, golden yellow or yellowish brown, glossy, growing on trees in dense mats. Primary stems prostrate; secondary stems often erect or patent, rarely pendulous, simple or densely branched; branches obtuse; paraphyllia absent; rounded in stem cross section, a central strand absent. Leaves closely imbricate, rounded or rounded-ovate at the base, not decurrent, gradually or abruptly constricted into a long acuminate apex; margins often dentate above, entire below; costae short, double or absent; leaf cells elongate, smooth, thick-walled, often porose; alar cells differentiated, rounded, yellowish brown. Dioicous. Perichaetia lateral on short branches; inner perichaetial leaves differentiated. Setae slender and elongate, smooth; capsules erect, oblong-ovoid, symmetric, smooth; opercula conic, long rostrate; annuli not differentiated; stomata few, superficial; peristome double; exostome teeth broadly lanceolate, with a slender apex, yellow, hyaline, smooth above, often perforate, rarely trabeculate on the inside; endostome segments with only basal membrane remained. Calyptrae cucullate, smooth. Spores irregularly globose, finely and densely papillose.