卷叶丛本藓

Anoectangium crispulum Wils., Hooker's J. Bot. Kew Gard. Misc. 9: 325. 1857, nom. nud. Anoectangium fauriei Card., Beih. Bot. Centralbl. 19(2): 90. 1905. Anoectangium kweichowense Bartr., Ann. Bryol. 8: 9. 1935. Type. China: Guizhou (Kweichow), Hui Hsiang-ping, S.-Y. Cheo 837 (isotype HKAS). Anoectangium laxum C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 5: 187. 1898. Type. China: Shaanxi (Schen-si), Kuan-tou-san, Nov. 1896, P. J. Giraldi s.n. Anoectangium pulvinatum Mitt., Trans. Linn. Soc. London, Bot., ser. 2, 3: 160. 1891, hom. illeg. Anoectangium schensianum C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 4: 260. 1927. Type. China: Shaanxi (Schen-si), in monte Lao-y-san, 1896, Giraldi s.n. Anoectangium subpulvinatum Broth., Akad. Wiss. Wien Sitzungsber., Math.-Naturwiss. Kl., Abt. 1, 133: 563. 1924. Type. China: Sichuan, Yeng-yuen Co., Handel-Mazzetti 2626 (holotype H).

Plants fairly small, (3–)6–15 mm high, yellowish green, in dense tufts. Stems erect, simple or rarely forked; in cross section outer cortical cells small, thick-walled, central strand absent. Leaves involute or contorted when dry, oblong-lanceolate to linear-lanceolate, 1.3–1.7 mm x 0.20–0.35 mm, acuminate or acute at the apex; basal cells hardly widened, not constricted above the leaf base; margins plane, more or less carinate, entire; costa percurrent or ending below the apex; upper and median laminal cells rounded to quadrate, 6–14 µm x 6–11 µm, with rounded pluripapillae; basal cells slightly enlarged, rectangular or short-oblong, 12–22 µm x 6–10 µm, narrower and shorter toward the margin, smooth or papillose; abaxial superficial cells of costa above the mid-leaf linear-rectangular. Inner perichaetial leaves broad-ovate, acute at the apex. Setae 6–7 mm long, yellowish brown, more or less twisted; capsules erect, shortly cylindrical, 0.5–0.8 mm long; columella persistent.

Type. Sikkim: T. Thomson 156 (lectotype NY), T. Thomson 153, 199 (syntypes NY); J. D. Hooker 197, 200, 201, 205 (syntypes NY).

Chinese specimens examined: ANHUI: Huang Shan (Mt.), P.-C. Chen 7399 (PE); She-xian Co., W.-F. Zheng 119 (HKAS). FUJIAN: Wuyi Shan (Mt.), D.-K. Li 11761 (HKAS, SHM). GUANGDONG: Lian-nan Co., L. Zhang 891 (HKAS). HEBEI: Dong-ling Co., L.-Q. Yu 285 (PE). HEILONGJIANG: Shang-zhi Co., Z.-W. Ao 8531 (HKAS). HENAN: Deng-feng Co., D.-K. Li 6464 (HKAS, SHM); Lan-chuan Co., D.-Z. Tu 3102 (PE); Song Co., J.-X. Luo 460 (PE); Tong-bai Co., H.-J. Yu 6114 (HKAS). JIANGXI: Lu Shan (Mt.), D.-K. Li 17023 (HKAS, SHM). JILIN: Chang-bai Shan (Mt.), C. Gao 7854 (IFSBH). LIAONING: Ben-xi Co., C. Gao 8328 (IFSBH). QINGHAI: Nang-qian Co., B.-C. Tan 95-173 (FH, MO). SHAANXI: Hu Co., M. Wang 645 (HKAS); Qing-ling (Mt.), P.-C. Chen 44 (MO, PE); Tai-bai Shan (Mt.), X.-J. Li 535a (HKAS). SICHUAN: Du-kou Co., L.-S. Wang 83205 (HKAS); Ma-er-kang Co., X.-J. Li 1179 (HKAS); Mu-li Co., K.-K. Chen 682 (HKAS). TAIWAN: Hsueh Shan Mo, Iwatsuki & Sharp 1074 (NICH); Pai-mu-ling (Mt.), Iwatsuki & Sharp 2369 (NICH). XIZANG: Ji-long Co., S.-K. Chen 254 (HKAS); Lang Co., M. Zang 1730 (HKAS); Mo-tuo Co., Y.-G. Su 1605 (HKAS). Sha-ge Co., K.-Y. Lang 1204 (HKAS, PE); Ya-dong Co., M. Zang 306 (HKAS). YUNNAN: Da-li Co., D.-D. Tao 16747 (HKAS); Gong-shan Co., Du-longjiang, M. Zang 3587 (HKAS); Li-jiang City, X.-J. Li 850023 (HKAS); Kun-ming City, S.-Y. Zeng 365 (HKAS); Zhong-dian Co., W.-M. Zhu 736 (HKAS). ZHEJIANG: Ching-lung Shan (Mt.), M. Zang 210 (HKAS); Wen-zhou city, Yan-dang Shan (Mt.), D.-K. Li 8226 (HKAS, SHM).

Habitat: on rocks or cliffs, in lowlands or mountains; Distribution: China, Japan, Nepal, India, Myanmar, and the Russian Far East.

Illustrations: C. Gao (ed.) 1996 (Pl. 47, figs. 11–15).