Published In:
Prodrome des Cinquième et Sixième Familles de l'Aethéogamie 67. 1805. ( Prodr. Aethéogam.) 
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(Last Modified On 4/2/2009)
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Acceptance
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Accepted
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(Last Modified On 4/2/2009)
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(Last Modified On 4/2/2009)
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Related Objects:
Illustrations: P.-C. Wu & Y. Jia (eds.) (2004), Pl. 52, figs. 1–11.
Click here for distribution map.
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Map:
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(Last Modified On 4/2/2009)
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Distribution:
Habitat: on thin soil over rocks, rotten wood, or base of trees; alt. 1250–3520 m.
Distribution: China, Japan, Korea, Russia, Europe, and North America.
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(Last Modified On 4/2/2009)
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Specimens Examined:
Chinese specimens examined: Gansu: Yu-zhong Co., L.-D. Zeng 17a (PE). Jilin: An-tu Co., Koponen 37119 (H, PE); Mt. Changbai, C. Gao 7599, 22319 (both in IFSBH), Vitt 34775 (ALTA, MO). Liaoning: Heng-ren Co., C. Gao & G.-C. Zhang 230 (IFSBH, MO). Nei Mongol: Mt. Helan, Z.-G. Tong 1354 (PE). Shaanxi: Hu Co., M. Wang 437 (XBGH). Shandong: Mt. Laoshan, C. Gao & E.-Z. Bai 34381 (IFSBH, MO). Sichuan: Yuan-yan Co., K.-K. Chen 437 (HKAS). Xinjiang: Fu-wen Co., R.-C. Qing 2068 (PE); Qing-he Co., Mt. Altai, R.-C. Qing 1179 (PE). Xizang: Long-zi Co., San-an-qu-lin, M. Zang 1490b (HKAS). Yunnan: Bin-chuan Co., M.-K. Cui 80a (XBGH); Gong-shan Co., M.-Z. Wang 10019c (PE); Wei-xi Co., M.-Z. Wang 5078b (PE); Zhong-dian Co., X.-J. Li 81-937 (HKAS).
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(Last Modified On 4/2/2009)
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general taxon notes:
Hypnum pallescens is characterized by having serrulate leaf margins and long, obliquely rostrate calyptrae.
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12. Hypnum pallescens (Hedw.) P. Beauv. 黄灰藓 huang hui xian
Prodr. Aethéogam. 67. 1805. Leskea pallescens Hedw., Sp. Musc. Frond. 219. pl. 55, f. 1–6. 1801. Type: Europe.
Stereodon reptilis (Michx.) Mitt., J. Proc. Linn. Soc., Bot. 8: 40. 1864. Hypnum reptile Michx., Fl. Bor.-Amer. 2: 315. 1803.
Plants small, slender, dark green or yellowish green, in dense patches. Stems creeping, 2–5 mm long or longer, pinnately or sometimes bipinnately branched; branches flattened or somewhat julaceous, 2–4 mm long, more or less curved, with numerous rhizoids at base; in stem cross section central strand somewhat developed; pseudoparaphyllia few, lanceolate. Stem leaves 0.6–1.1 mm × 0.4–0.6 mm, falcate-secund, rarely straight, concave, ovate-lanceolate, not decurrent, rather abruptly to gradually acuminate; margins serrulate above, entire and recurved below; costae double, weak, sometimes single; median and upper leaf cells linear, 30–50 µm × 4–5 µm, slightly prorate; basal cells wider yellowish; alar cells quadrate or subquadrate, numerous, with 8–15 cells extending along the margin; branch leaves narrower, 0.6–1.0 mm × 0.22–0.35 mm, distinctly serrulate near the apex. Autoicous. Inner perichaetial leaves erect, oblong-lanceolate, slenderly acuminate, serrulate above, plicate; costae double, indistinct or single. Setae 7–15 mm long, yellowish brown or orange, twisted when dry; capsules inclined or horizontal, rarely erect, ellipsoidal to nearly cylindrical, 1.0–2.3 mm long, curved, constricted when dry; opercula conic, obliquely rostrate; annuli developed, in 1–2 rows; peristome normal, with 2–3 cilia. Spores 14–18 µm in diameter, minutely papillose.
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