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

2. Bryoerythrophyllum brachystegium (Besch.) Saito, J. Jap. Bot. 47:14. 1972; Gymnostomum brachystegium Besch., J. Bot. (Morot) 12: 281. 1898.


Didymodon brachystegius (Besch.) Broth., Nat. Pflanzenfam. 1(3): 406. 1902. Bryoerythrophyllum obtusissimum (Broth.) P.-C. Chen, Hedwigia 80: 252. 1941. Didymodon obtusissimus Broth., Öfvers. Forh. Finska Vetensk.-Soc. 62A(9): 9. 1921.

Plants medium-sized, ca. 1.5 cm high, yellowish green above, reddish brown below, in dense tufts. Stems erect, radiculose below. Leaves appressed or contorted when dry, spreading when moist, ovate-lanceolate, reflexed above the mid-leaf, sheathing at the base, rather abruptly narrowed from an ovate base, blunt at the apex; margins entire, recurved below the mid-leaf; costa strong, ending a few cells below the apex; upper leaf cells rounded hexagonal, somewhat thick-walled, with multi-C-shaped papillae; basal cells rectangular, smooth, hyaline. Sporophytes not seen.

Type. Japan.

Chinese specimens examined: HUBEI: Fang Co. (Yanchihe), J.-Q. Xing 16003 (HKAS). JILIN: An-tu Co., C. Gao 1369 (IFSBH). LIAONING: Ben-xi Co., C. Gao 8398 (IFSBH). Nei Mongol: Da-qing Shan (Mt.), Z.-G. Tong 84 (PE). SICHUAN: Mi-yi Co., K.-K. Chen 388 (HKAS). TAIWAN: Hua-lien Co., Koponen 18104 (H, HKAS). XIZANG: Cha-yu Co., M.-Z. Wang 12093 (PE); Long-zi Co., M. Zang 1271 (HKAS); Ya-dong Co., M. Zang 292 (HKAS); Zhong-ba Co., T.-D. Tao 2102 (HKAS). YUNNAN: Geng-ma Co., S.-Y. Zeng 80–1135 (HKAS); Gong-shan Co., M.-Z. Wang 11256 (PE); Kun-ming City, Koponen 37611 (H, HKAS); Meng-la Co., L. Zhang 446 (HKAS).

Habitat: on rocks or thin soil over rocks, sometimes on tree trunks or rotten trees; Distribution: China and Japan.

Illustrations: Pl. 113, figs. 1–2.


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