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Moss China | Family List | Moss China V. 1 | Dicranaceae | Dicranoloma

5. Dicranoloma dicarpum (Nees) Paris, Index Bryol. (ed. 2). 2: 26. 1904; Dicranum dicarpum Nees in Spreng. Syst. Veg. F. Peru. Chil. 4 (2): 322. 1827.

Dicranoloma kwangtungense Chen, Contr. Inst. Biol. Coll. Sci. Natl. Centr. Univ. Chungking 1: 2. 1943. Type. China: Guangdong, Bei-jiang (Pe-chiang) Co., Yao Shan (Mt.), S.-S. Sin 71274 (holotype IBSC).

Plants medium-sized, up to 5 cm high, pale green to yellowish green, shiny, in dense tufts. Stems erect, simple or branched, densely radiculose below; central strand present. Leaves erect-spreading when moist, flexuose when dry, lanceolate, gradually narrowed from an oblong-ovate base to a long-acuminate, setaceous apex; margins plane or involuted, entire below, serrulate above the middle, bordered by 2–3 rows of linear, thick-walled cells; costa slender, subpercurrent to excurrent, smooth to weakly ridged or slightly serrulate at back above, showing a few isolated groups of stereids intermixed with the large guide cells in transverse section; laminal cells short-rectangular to elongate-rectangular, thick-walled, porose; alar cells quadrate to hexagonal, thick-walled. Dioicous. Perichaetial leaves convolutedly sheathing, abruptly subulate. Setae often 2–3 per perichaetium, ca. 1.5 cm long, brownish; capsules erect, cylindric, yellowish brown, not furrowed when dry; opercula long-rostrate; peristome teeth lanceolate, divided down to the middle, striate below, papillose above. Spores not seen.

Type. Australia.

Chinese specimens examined: GUANGDONG: see the type information of Dicranoloma kwangtungense cited above. HAINAN: Jianfengling (Mt.), P.-Z. Zheng 257 (IBSC, IFSBH); Wuzhi Shan (Mt.), P.-J. Lin 2108 (IBSC). YUNNAN: Kunming City, Yunnan Univ. Biol. Dept. 5724 (YUKU).

Habitat: on bases of trees or rotten wood, rarely on rocks; Distribution: China, Malaysia, Indonesia, Australia, New Zealand, and Peru.

Illustrations: C. Gao (ed.) 1994 (Pl. 141, figs. 1–12).


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