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Published In: Memoirs of The New York Botanical Garden 21(3): 35. 1971. (Mem. New York Bot. Gard.) Name publication detail

Project Name Data (Last Modified On 4/3/2009)
Acceptance : Accepted
Project Data     (Last Modified On 4/3/2009)
General Reference:

Illustration & Map     (Last Modified On 4/3/2009)
Related Objects:
Illustrations: P.-C. Wu & Y. Jia (eds.) (2004), Pl. 193, figs. 1–10.

Click here for distribution map.

Map: Polytrichastrum xanthopilum (Wilson ex Mitt.) G.L. Sm. (Distribution in China)

Distribution     (Last Modified On 4/3/2009)
Habitat: usually on alpine forest ground; alt. 3000–4500 m.
Distribution: China, the Himalayas, and North America.

Specimens Examined     (Last Modified On 4/3/2009)
Specimens Examined:
Chinese specimens examined: Sichuan: Lei-bo Co., Z.-T. Guan 8795 (PE); Mu-li Co., Agri. Exped. Team 1, 6, 53, 240 (all in PE). Xizang: Cha-yu Co., Q.-W. Wang 5597 (PE); Cuo-na Co., Inst. Bot. Ecol. Dept. Xizang Team M7401 (IFSBH, PE); Ri-dong Co., M.-Z. Wang 12072a, 12607a (both in PE). Yunnan: Between Lan-cangjiang and Nu-jiang, Handel-Mazzetti 9980 (PE, S); Gong-shan Co., Q.-W. Wang 6861, 6914 (both in PE), M.-Z. Wang 9468d (PE); Li-jiang Co., Forestry Mins. Exped. Team 2 (PE); Wei-xi Co., Q.-W. Wang 4719a, 4736, 4780 (all in PE); Zhong-dian Co., P.-Q. Li 813533a (PE).


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8. Polytrichastrum xanthopilum (Wils. ex Mitt.) G. L. Smith   黄尖拟金发藓   huang jian ni jin fa xian
Mem. New York Bot. Gard. 21(3): 35. 1971. Polytrichum xanthopilum Wils. ex Mitt., J. Proc. Linn. Soc., Bot., Suppl. 2: 156. 1859. Type: Sikkim. Hooker s.n.
Polytrichum tibetanum C. Gao in C. Gao & G.-C. Zhang, Acta Phytotax. Sin. 17: 117. f. 2. 1979. Type: China. Xizang, Cuo-na Co., Inst. Bot. Ecol. Dept. Xizang Team M 7441 (holotype IFSBH).
Plants medium-sized, usually 3–5 cm high. Stems erect, simple or branched, in scattered or gregarious tufts. Leaves densely crowded and clasping on upper stems, erect when dry, erect-spreading when moist; basal leaves scale-like; upper leaves 5–10 mm long, lanceolate, slightly sheathing at base; ventral lamellae in 20–50 rows, 4–7 cells high, apical cells of the lamellae pyriform, yellowish, with large lumen; costa narrow, spinose on back above; leaf margins serrate; median leaf cells rounded ovate or nearly quadrate, thick-walled. Dioicous. Perigonia in rosettes, perigonial leaves short. Perichaetial leaves similar to the stem leaves, usually sheathing at base. Setae slender, 3–4 cm long; capsules erect or slightly inclined, 4.0–5.5 mm long, 4–6 obtusely keeled, apophyses distinct; exothecial cells thick-walled; stomata at base of urns; opercula beaked, deciduous; annuli differentiated; peristome teeth usually 64; membrane thin. Calyptrae cucullate, densely covered by golden hairs. Spores spherical or rounded ovoid, 11–13 µm in diameter, verrucose.


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