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

8. Bryoerythrophyllum wallichii (Mitt.) P.-C. Chen, Hedwigia. 80:260. 1941; Desmatodon wallichii Mitt., J. Proc. Linn. Soc., Bot. Suppl. 1: 38. 1859.


Didymodon wallichii (Mitt.) Broth., Nat. Pflanzenfam. 1(3): 405. 1902. Barbula zygodontifolia C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 3: 99. 1896. Type. China: Shaanxi (Schen-si), Kuan-tou Shan (Mt.), P. J. Giraldi 855. Bryoerythrophyllum atrorubens (Besch.) P.-C. Chen, Hedwigia 80: 262. 1941. Didymodon atrorubens (Besch.) Broth., Nat. Pflanzenfam. 1(3) 405. 1902. Trichostomum atrorubens Besch., Rev. Bryol. 18: 88. 1891. Syntypes. China: Yunnan, between Hokin and Tali, Delavay 1631, 3965, 4132.

Plants small, ca. 1 cm high, yellowish green to brownish, in dense tufts. Stems erect, simple or branched; central strand present. Leaves oblong-elliptic to ligulate, obtusely pointed or apiculate at the apex; lower margins entire, somewhat recurved, upper margins more or less plane, distantly denticulate, marginal cells of 4–5 rows, thick-walled, yellowish, forming a distinctly differentiated border; costa strong, percurrent; upper leaf cells quadrate to hexagonal, with multiple rounded or C-shaped papillae; basal cells rectangular, hyaline, forming a distinctly differentiated leaf base. Dioicous. Setae ca. 1 cm long; capsules erect, long-cylindrical; opercula obliquely long-rostrate.

Syntypes. Sikkim: J. D. Hooker 167; Nepal: Wallich s.n.; Himalaya boreali-occident, T. Thomson 137.

Chinese specimens examined: SICHUAN: Hui-li Co., Handel-Mazzetti 965 (H); Li Co., L.-N. Zhao 16 (HKAS); Mi-yi Co., K.-K. Chen 398 (HKAS); Nan-chuan Co., M.-Z. Wang 860065 (PE). XIZANG: Ji-long Co., S.-K. Chen 225 (HKAS); Long-zi Co., San-an-qu-lin, M. Zang 1500 (HKAS); Mi-lin Co., Y.-G. Su 5310 (HKAS); Mt. Everest, X.-G. Wang 70 (PE); Ya-dong Co., M. Zang 475 (HKAS). YUNNAN: Bin-chuan Co., M.-K. Cui 264 (HYUB); Jade Dragon Snow Mountain, Croat 77671 (MO); Li-jiang Co., X.-J. Li 81–455 (HKAS); Zhong-dian Co., X.-J. Li 81–1632 (HKAS).

Habitat: on rocks in shade; Distribution: China, Japan, Nepal, and India.

Illustrations: Pl. 114, figs. 1–3.


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