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Published In: Bryologia Europaea 5: 195. 506 (fasc. 48 Monogr. 17 13). 1851. (Bryol. Eur.) Name publication detail

Project Name Data (Last Modified On 4/1/2009)
Acceptance : Accepted
Project Data     (Last Modified On 4/1/2009)
General Reference:

Illustration & Map     (Last Modified On 4/1/2009)
Related Objects:
Illustrations: R.-L. Hu & Y.-F. Wang (eds.) 2005 (Pl. 106, figs. 1–13).

Click here for distribution map.

Map: Plagiothecium undulatum (Hedw.) Schimp. (Distribution in China)

Distribution     (Last Modified On 4/1/2009)
Habitat: on soil; alt. 1500–3600 m.
Distribution: China, Russia, Europe, and North America.

Specimens Examined     (Last Modified On 4/1/2009)
Specimens Examined:
Chinese specimens examined: Guizhou: Mt. Fanjing, Bourell 4704 (MO). Heilongjiang: Xiao Xing An Ling (Mt.), Y.-L. Zhang 526 (PE). Xizang: Cha-yu Co., J.-W. Zhang 7306 (HKAS); Mo-tuo Co., Y.-G. Su 4954 (HKAS); Ya-dong Co., M. Zang 238, 549 (both in HKAS). Yunnan: Gong-shan Co., M.-Z. Wang 8836 (PE), Q.-W. Wang 7239 (SHM); Jing-dong Co., J.-K. Zhang 16651 (YUKU); Yang-bi Co., Redfearn et al. 826 (MO).

Notes     (Last Modified On 4/1/2009)
general taxon notes:
Plagiothecium undulatum is similar to P. neckeroideum, but it differs by the large, stout, pale green plants and the longer and broader median leaf cells (96–175 µm × 7–11 µm vs. 70–100 µm × 5–7 µm).


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17. Plagiothecium undulatum (Hedw.) Schimp. in B.S.G.   波叶棉藓   bo ye mian xian
Bryol. Eur. 5: 195. 1852. Buckiella undulata (Hedw.) Ireland, Novon 11: 55. 2001. Hypnum undulatum Hedw., Sp. Musc. Frond. 242. 1801. Type: Europe.
Plants rather large, stout, pale green, whitish green, or yellowish green, not or somewhat glossy, in thick mats. Stems prostrate, to 10 cm long, irregularly branched; leafy branches complanate, sometimes ascending, somewhat julaceous. All leaves imbricate, ovate to ovate-lanceolate, 2.0–5.0 mm × 1.0–2.3 mm, concave, slightly asymmetric, distinctly undulate, acute at apex; margins plane, entire or serrulate near leaf apex; leaf cells covered with minute, granular, cuticular papillae on abaxial surfaces; median cells narrowly rhomboidal, 96–175 µm × 7–11 µm, thin-walled; apical cells shorter; basal cells porose; alar regions decurrent, in a triangular shape, consisting of 1–3 rows of rectangular cells, ending with a single, elongate cell. Dioicous. Setae 25–45 mm long, brownish to reddish; capsules suberect to inclined, sometimes wrinkled, 1.5–4.0 mm long, often curved, constricted below the mouth when dry; opercula conic-rostrate, 0.8–1.2 mm long; annuli well developed, deciduous; cilia 2–3. Spores not seen.


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