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Published In: Botanische Zeitung (Berlin) 35: 478. 1877. (Bot. Zeitung (Berlin)) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 3/4/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/5/2009)
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Illustration & Map     (Last Modified On 3/5/2009)
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Illustrations: C. Gao (ed.) 1994 (Pl. 11, figs. 11–14).

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Map: Sphagnum obtusum Warnst. (Distribution in China)

Distribution     (Last Modified On 3/5/2009)


Habitat: in open bogs.
Distribution: China, Japan, Russian Far East and Siberia, and Europe, and North America.

Specimens Examined     (Last Modified On 3/5/2009)
Specimens Examined:


Chinese specimens examined: Heilongjiang: C. Gao 3485(b) (IFSBH); Hong Xing, Vitt 34960 (MO).


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25. Sphagnum obtusum Warnst.   舌叶泥炭藓 she-ye ni-tan xian
Bot. Zeitung (Berlin) 35: 478. 1877. Sphagnum recurvum var. obtusum (Warnst.) Warnst., Hedwigia 23: 121. 1884. Type. Europe.

Plants rather large, 8–12 cm high, pale green, tinged with yellowish brown, in loose or compact tufts. Stem cortex in 2–4 layers, hyaline cells large, thin-walled, without fibrils and pores; central cylinder pale yellowish brown, not clearly differentiated from cortical cells. Stem leaves 1.0–1.5 mm long, distantly set, triangular-ligulate, rounded, dentate or sometimes lacerate at the apex; borders narrow above, clearly widened below (ca. 1/3 the leaf base width); hyaline cells broadly rhomboidal, occasionally divided and fibrillose in the upper apex. Branches in fascicles of 4–5, with 2–3 spreading. Branch leaves 2.0–3.0 mm long, ovate-ligulate to lanceolate, undulate when dry, slightly involute near apex; hyaline cells linear-rhomboidal, densely fibrillose, with numerous, small, pore-like membrane thinnings in 1–2 rows on both surfaces; green cells in cross section narrowly isosceles-triangular, exposed on the dorsal surface, enclosed by hyaline cells or sometimes slightly exposed on the ventral surface. Dioicous. Sporophytes not seen.

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