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Moss China | Family List | Moss China V. 2 | Pottiaceae | Didymodon

7. Didymodon fallax (Hedw.) Zand., Phytologia. 41:28. 1978; Barbula fallax Hedw., Sp. Musc. Frond. 120. 1801.

Barbula fallacioides Dix. in P.-C. Chen, Hedwigia 80: 204. 1941, nom. nud.

Plants medium-sized to rather large, 30–50 mm high, yellowish green to reddish brown, in loose tufts. Stems erect, usually branched. Leaves contorted-curved when dry, squarrose when moist, broadly ovate-lanceolate to triangular-lanceolate; margins entire, revolute; costa stout, percurrent, reddish brown; upper leaf cells rounded hexagonal, thick-walled, with 1 to several lower papillae; basal cells short-rectangular, mostly smooth.

Type. Europe.

Chinese specimens examined: HEBEI: Xiao-wu-tai Shan (Mt.), C.-Y. Yang 36 (PE). HENAN: Hui Co., Z.-Z. He 1021 (MO, PE); Song Co., J.-X. Luo 301a, 410a (PE); Xin-yang Co., Z.-Z. He 33 (MO, PE). HUBEI: Sheng-nongjia (Mt.), K.-Y. Guan 80–2521, 80–2604 (HKAS). NEI MONGOL: Da-qing Shan (Mt.), Z.-G. Tong 791 (PE); He-lan Shan (Mt.), Z.-G. Tong 1840 (PE). SHAANXI: Hua Shan (Mt.), P.-C. Chen 820 (PE), C. Gao 16656 (HKAS, IFSBH); Hu Co., Z.-P. Wei 4634 (HKAS, WUG). SICHUAN: De-rong Co., X.-J. Li 81–2815 (HKAS). TAIWAN: Hsin-chu Co., Shevock 14397 (MO); Tai-zhong Co., Suzuki 2214, 2650 (H). XINJIANG: Bugeda Shan (Mt.), J.-C. Zhao 2816 (HKAS). XIZANG: Zhu-mu-lang-ma-feng (Mt. Everest), X.-G. Wang 63 (PE). YUNNAN: Da-li Co., Handel-Mazzetti 6588 (H); Gong-shan Co., Q.-W. Wang 6829 (H).

Habitat: on rocks or soil over rocks in shade; Distribution: China, nearly throughout Asia, Europe, and North America.

Illustrations: C. Gao (ed.) 1996 (Pl. 62, figs. 10–14, as Barbula fallax).


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