2. Thuidium cymbifolium (Dozy & Molk.) Dozy & Molk. 大羽藓 da-yu xian
Bryol. Jav. 2: 115. 1867. Hypnum cymbifolium Dozy & Molk., Ann. Sci. Bot., ser. 3, 2: 306. 1844. Type. Indonesia: Java.
Thuidium japonicum Dozy & Molk. ex Sande Lac., Ann. Mus. Bot. Lugduno-Batavum 2: 297. 1865 .
Plants robust, up to or more than 10 cm long, light green to dark green, yellowish brown when old, often in large, interwoven patches. Stems creeping, usually regularly bipinnately branched; branches about 1.5 cm long; central strand differentiated; paraphyllia dense on stems and branches, foliose or filamentous, apical cells multipapillose. Stem leaves loosely appressed when dry, erect-patent when moist, suddenly narrowed from a triangularly ovate base to a lanceolate to piliferous apex, usually 6–10 cells long; margins mostly revolute or slightly revolute, rarely plane, serrulate above; costa extending to the lanceolate apex, with papillae or paraphyllia on back; median leaf cells oval-rhomboidal to elliptic, 5–20 µm wide, setulosely unipapillose; branch leaves concave, ovate or oblong-ovate, with a short apex; costa up to 2/3 the leaf length. Dioicous. Perichaetial leaves widely ovate-lanceolate, margins entire. Setae yellowish brown to reddish brown, about 2 cm long; capsules cylindrical; peristome double; exostome teeth broadly lanceolate, reddish brown, papillose above; endostome segments as long as the exostome teeth, finely papillose; basal membrane about 1/2 the length of endostome segments; cilia 2–3. Spores ca. 20 µm in diameter, finely papillose.