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

1. Leucoloma molle (C. Müll.) Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 13. 1859; Dicranum molle C. Müll., Syn. Musc. Frond. 1: 354. 1848.


Plants slender, rather large, up to 5 cm high, pale green to yellowish green, in loose tufts. Stems erect or arcuately ascending, branched; central strand absent. Leaves widely erect-spreading when moist, slightly flexuose, usually falcate-secund when dry, deciduous; margins involute above, bordered by a single row of linear cells near the apex, 10–15 rows at the middle, up to 20 rows near the base; costa narrow, long-excurrent, scabrid at the apex; median cells subquadrate to rounded-rectangular, 5–7 µm x 3–4 µm, minutely papillose; basal cells rectangular, 13–20 µm x 3–4 µm, smooth; alar cells quadrate to short-rectangular, brownish, thick-walled. Dioicous. Perichaetial leaves sheathing at base, abruptly subulate above. Setae 2–3 mm long, only extending beyond the perichaetial leaves. Mature capsules not seen.

Type. Indonesia: Java, Junghuhn s.n.

Chinese specimens examined: GUANGDONG: Ru-yuan Co., P.-J. Lin 609 (IBSC, IFSBH). GUANGXI: Jin-xiu Co., H-.G. Ye 33 (IBSC, IFSBH); Rong-shui Co., Long & Zhang H047 (MO). HAINAN: Bai-sha Co., Redfearn 35773 (MO); Chang-jiang Co., Redfearn 35911 (MO); Diaoluo Shan (Mt.), C. Gao 807 (IFSBH); Jianfengling (Mt.), P.-J. Lin 366(e) (IBSC); Le-dong Co., Redfearn 35935 (MO); Ling-shui Co., Redfearn 36110 (MO). TAIWAN: Miao-li Co., S.-H. Lin s.n. [Bryophytes of Taiwan Exsiccatae 78] (MO); Tai-pei Co., Chuang & Schofield 240 (UBC).

Habitat: on tree trunks; Distribution: China, Japan, Indonesia, Malaysia, and the Philippines.

Illustrations: Pl. 51, figs. 1–10.


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