15. Pohlia longicollis (Hedw.) Lindb. 拟长蒴丝瓜藓 ni chang shuo si gua xian
Musci Scand. 18. 1879. Webera longicollis Hedw., Sp. Musc. Frond. 169. 1801. Type: Europe.
Plants medium-sized to large, 15–50 mm high, yellowish green, mostly glossy, in dense tufts. Stems erect, simple, with rhizoids at base. Leaves mostly dense on upper stems, lower ones smaller, ovate-lanceolate, becoming larger and narrower toward apex; margins plane or slightly recurved, serrulate near the apex; costae ending below the apex; median leaf cells linear, 70–140 µm × 7–12 µm, thin-walled. Gemmae absent. Autoicous. Perichaetial leaves linear. Setae elongate, 8–20(–30) mm long; capsules club-shaped, neck developed, ca. 1/3 the urn length; opercula conic, shortly apiculate; peristome double; exostome teeth papillose above; endostome segments nearly as long as the teeth, perforate; cilia 2 or rudimentary. Spores spherical, 18–26 µm in diameter, papillose.