11a. Fissidens crispulus黄叶凤尾藓原变种 huang-ye feng-wei xian yuan bian-zhong Brid. var. crispulus
Musc. Rec. suppl. 4: 187. 1819. Fissidens tamarindifolius (Turn.) Brid. var. crispulus (Brid.) Brid., Bryol. Univ. 2: 686. 1827. Type. Réunion [Insula Borbonia], 1803, Bory St. Vincent s.n.
Fissidens auriculatus C. Müll., Linnaea 37: 166. 1872.
Fissidens incrassatus Sull. & Lesq., Proc. Amer. Acad. Arts Sci. 4: 276. 1859. Type. China: Hong Kong, C. Wright s.n. (syntype FH).
Fissidens pepuensis P.-C. Chen, Sunyatsenia 6(2): 189, taf. 31. 1941. Type. China: Hainan, Pepu (Bei-po), C. Ho 1124 (holotype PE); C. Ho 1120a, 1128, 1138 (paratypes PE).
Fissidens sakourae Paris & Broth., Bull. Herb. Boissier, sér. 2, 2: 921. 1902.
Fissidens sylvaticus (auct. non Griff.) Dix., Hong Kong Nat. Suppl. 2: 8. 1933.
Fissidens zippelianus Dozy & Molk. in Zoll., Syst. Verz. 29. 1854. Fissidens sylvaticus var. zippelianus (Dozy & Molk.) Gangulee, Mosses E. India 2: 537. 1971.
Plants small, gregarious. Leafy stems simple or branched, 5.5–12.0 mm long, 2.0–2.5 mm wide, with leaf tips curled when dry; axillary hyaline nodules well differentiated; central strand not differentiated. Leaves in 10–24 pairs, often more or less densely arranged, but sometimes rather loosely arranged; middle to upper leaves lanceolate to narrowly lanceolate, 1.5–1.8 mm × 0.3–0.4 mm, broadly acute at apex; base of dorsal laminae rounded to wedge-shaped; vaginant laminae 1¤2 –3¤5 the leaf length; costa percurrent or ending a few cells below leaf apex; margins finely serrulate to crenulate above, entire below; cells of apical and dorsal laminae rounded-quadrate to rounded- hexagonal, 7–11 µm long, mammillose, obscure; cells of the vaginant laminae similar to those of apical and dorsal laminae, but larger and less mammillose, with thicker wall toward the base. Dioicous. Female inflorescences terminal. Perichaetial leaves differentiated, narrower and longer than stem leaves. Archegonia ca. 280 µm long. Setae 3.4–4.3 mm long, smooth; capsules often erect, symmetrical; urns shortly cylindrical, 0.5–0.6 mm long; exothecial cells shortly rectangular to rectangular-hexagonal, thin-walled; opercula long rostrate, 0.5–0.6 mm long; peristome teeth 0.2–0.3 mm long. Calyptrae campanulate, ca. 0.7 mm long. Spores not seen.