Tropicos | Name - !Polytrichastrum alpinum (Hedw.) G.L. Sm.

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!Polytrichastrum alpinum (Hedw.) G.L. Sm.

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Project Name Data (Last Modified On 4/3/2009)

Acceptance : Accepted

Project Data (Last Modified On 4/3/2009)

General Reference:

Wu, P.-C., M. R. Crosby & S. He. 2005. Sematophyllaceae–Polytrichaceae. 8: viii + 385 pp. In Moss Fl. China. Science Press & Missouri Botanical Garden, Beijing, New York & St. Louis.

Illustration & Distribution Map (Last Modified On 4/3/2009)

Illustrations:

Illustrations: P.-C. Wu & Y. Jia (eds.) (2004), Pl. 189, figs. 1–14.

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Map:

Polytrichastrum alpinum (Hedw.) G.L. Sm. (Distribution in China)

Ecology & World Range (Last Modified On 4/3/2009)

Habitat & Distribution:

Habitat: forming large tufted patches in alpine forest regions; alt. 540–4600 m.

Distribution: China, and nearly worldwide.

Specimens Info (Last Modified On 4/3/2009)

Specimens Examined:

Chinese specimens examined: Hebei: Mt. Wutai, H. Li et al. 71231 (PE), Q.-W. Wang 667 (MO). Jilin: An-tu Co., C. Gao 1061, 1197 (both in IFSBH, PE); Mt. Changbai, C. Gao 22253 (MO). Nei Mongol: Mt. Helan, Z.-G. Tong 1990 (PE). Qinghai: Yu-shu Co., B. C. Tan 95-1684 (FH, PE). Sichuan: Le-shan Co., P.-C. Chen 4299b (MO); Li-tang Co., S. He 31858a (MO, PE); Ma-er-kang Co., X.-J. Li 1079a, 1169a, 1186a (all in HKAS, PE); Ya-jiang Co., S. He 31959 (MO, PE). Taiwan: Nan-tou Co., Shevock 17922 (CAS, MO); Tai-chung Co., S.-H. Lin s.n. [Bryophytes of Taiwan Exsiccatae ser. 4, no. 188 (MO)]. Xinjiang: Urum-qi Co., S. He 951052 (MO); Mt. Tianshan, B. C. Tan 93-1017 (FH, MO), K.-J. Guan 2332 (MO). Xizang: Cha-yu Co., M.-Z. Wang 12639d (PE). Yunnan: Bin-chuan Co., M.-K. Cui 905b (PE, YUKU); Lu-xi Co., X.-Y. Jia 910108 (MO).

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1. Polytrichastrum alpinum (Hedw.) G. L. Smith 拟金发藓 ni jin fa xian

Mem. New York Bot. Gard. 21(3): 37. 1971. Pogonatum alpinum (Hedw.) Roehl., Ann. Wetterauischen Ges. Gesammte Naturk. 3(2): 226. 1814. Polytrichum alpinum Hedw., Sp. Musc. Frond. 92. Pl. 19. f. 2: b. 1801. Type: Europe.

Polytrichastrum alpinum var. brevifolium (R. Brown) Brassard, Bryologist 75: 531. 1972 [1973]. Polytrichum alpinum subsp. brevifolium (R. Brown) Kindb., Eur. N. Amer. Bryin. 2: 160. 1897. Polytrichum alpinum var. brevifolium (R. Brown) C. Müll., Syn. Musc. Frond. 1: 211. 1848. Pogonatum alpinum (Hedw.) Roehl. var. brevifolium (R. Brown) Brid., Bryol. Univ. 2: 131. 1827. Polytrichum brevifolium R. Brown, Chlor. Melvill. 36. 1823.

Polytrichastrum fragile (Bryhn) D. Long, Meddel. Grønland, Biosci. 17: 30. 1985. Polytrichum fragile Bryhn, Rep. Second Norweg. Arctic Exped. 2(11): 122. Pl. 1: f. 3. 1906.

Plants medium-sized to large, usually 5–10 cm high. Stems erect, often branched, in gregarious or scattered tufts. Stem leaves crowded above, erect or patent when dry, mostly appressed, erect-spreading when moist, basal leaves often scale-like, 3.5–7.5 mm long, upper leaves ca. 1.5 mm long, narrowly lanceolate from a sheathing base; ventral lamellae in 24–40 rows, 5–8 cells high; apical cells inflated-ovate, with many gross papillae; margins sharply long toothed; costa rather broad, often with spines on back near apex; median cells rounded ovate to rounded quadrate or hexagonal, usually 10–15 µm wide, sometimes oblate-rectangular; cells at sheathing base rectangular, 30–90 µm × 6–12 µm. Dioicous. Perigonia discoid; perigonial leaves broad and short. Perichaetial leaves similar to the stem leaves, sheathing at base. Setae slender, rigid, 0.8–3(–5) cm long; capsules cylindrical, 3.0–5.8 mm × 1.5–2.0 mm, mostly erect, without apophyses; stomata at base of urns; epiphragm fleshy; peristome teeth 32–40, sometimes more than 40; annuli differentiated; opercula long beaked. Calyptrae cucullate, densely ciliate, with brownish hairs. Spores 18–24 µm in diameter, finely papillose.