37. Brachythecium starkii (Brid.) Schimp. in B.S.G. 林地青藓 lin di qing xian
Bryol. Eur. 6: 14. 1853. Eurhynchium starkii (Brid.) Kindb., Canad. Rec. Sci. 6: 23. 1894. Hypnum starkii Brid., Muscol. Recent. 2(2): 107. 1801. Type: Europe.
Plants medium-sized to rather large, green or yellowish green, in loose mats. Stems prostrate, to 5–7 cm long, regularly pinnately branched. Stem leaves triangular to triangularly ovate, 1.4–1.9 mm × 0.7–0.9 mm, slightly concave, plane, not plicate, abruptly narrowed to a slenderly acuminate or piliform apex, distinctly constricted and decurrent at base; margins entire above, serrulate near leaf bases; costae ending above mid-leaf; median leaf cells linear-rhomboidal, 58–90 µm × 8–9 µm; alar cells differentiated, excavate, inflated, quadrate or shortly rectangular; branch leaves narrowly ovate-lanceolate, 1.2–1.6 mm × 0.7–0.8 mm, gradually acuminate at apex; margins nearly entire; costae reaching ca. 4/5 the leaf length. Autoicous. Setae ca. 16–18 mm long, coarsely papillose throughout; capsules inclined to horizontal; opercula shortly conic-rostrate; peristome double; exostome teeth papillose above, cross-striolate below; endostome segments papillose throughout, perforate; cilia 2–3, shorter than the segments, nodulose. Spores not seen.