1a. Splachnum ampullaceum Hedw. var. ampullaceum 大壶藓原变种 da hu xian yuan bian-zhong
Sp. Musc. Frond. 53. 1801. Type. Europe.
Plants small to medium-sized, (1–)2–4 cm high, soft, bright green, in loose tufts. Stems erect, often branched. Lower leaves smaller, upper leaves larger, obovate, distinctly narrowed at base, acuminate at apex; margins usually weakly undulate, dentate or serrate, strongly sharp-toothed on leaves from sterile stems; costa subpercurrent; leaf cells lax, large, hexagonal or oblong-hexagonal, thin-walled. Dioicous or rarely autoicous. Setae elongate, 5–6 cm long, reddish brown; capsules subcylindric, yellowish brown, apophyses turbinate, much broader than the urns, pinkish to pale purple; opercula hemispheric, blunt; annuli none; peristome teeth inserted nearly at the mouth, united in pairs when young, divided when mature, yellowish to orange-brown, densely papillose. Calyptrae typical as in the genus. Spores not seen.