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!Indusiella thianschanica Broth. & Müll. Hal. Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Botanisches Centralblatt 75: 322. 1898. (Bot. Centralbl.) Name publication detail
 

Project Name Data (Last Modified On 3/16/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/4/2009)
General Reference:

Illustration & Map     (Last Modified On 5/4/2009)
Illustrations: Indusiella thianschanica Broth. & Müll. Hal. (Figs. 1–12.)
Map: Indusiella thianschanica Broth. & Müll. Hal. (Distribution in China)

Distribution     (Last Modified On 5/4/2009)
Distribution:
Habitat: on exposed, dry rocks or thin soil over rocks in mountainous areas; alt. up to 5100 m.
Distribution: China, Mongolia, Caucasus, North America (Alaska), and northern Africa (Chad).

Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:
 
Chinese specimens examined: Nei Mongol: Mt. Helan, Z.-G. Tong 1137, 2079 (both in HIMC), 1893 (HIMC, MO). Qinghai: Cheng-duo Co., B. C. Tan 95-1605, 95-1628 (both in FH, MO). Xinjiang: Fu-kang Co., Mt. Gegeda, J.-C. Zhao 3065 (IFSBH, XJU); He-jing Co., S. He 951229, 951233 (MO). Xizang: Ban-ge Co., K.-Y. Lang 1260, 1264, 1274 (PE); Jiang-zi Co., Samada, Ludlow et al. 4081 (MO); Long-zi Co., M. Zang 1324 (HKAS); Shuang-hu Co., K.-Y. Lang 1362 (MO, PE).
 

Notes     (Last Modified On 5/4/2009)
general taxon notes:
This is a typical xerophilous species occurring in high mountains of desert and steppe regions.

 

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1. Indusiella thianschanica Broth. & C. Müll. in Broth.   旱藓   han xian
Bot. Centralbl. 75(11): 322. 1898. Type. Russia (former U.S.S.R.): Tyanshan, vicinity of Issykkul; Alpes Alexandri, Kaschkara River valley, 1 June 1896, Brotherus s.n. (lectotype H, designated by Murray 1984, not seen).
Indusiella andersonii Delgadillo, Bryologist 79: 99. 1976. Synonymized by Murray 1984.
 
Plants small, 7–9 mm high, blackish green above, brownish below, in dense cushions. Stems erect, branched above, with a well developed central strand in cross section. Leaves rigid, fragile, imbricate, closely appressed when dry, erect-spreading when moist, broadly ovate, 0.9–1.1 mm long, broadly sheathing at base, abruptly and strongly enrolled in the upper part, cucullate and obtuse at apex; margins entire, plane at sheathing base, spirally inrolled above; costa single, strong, percurrent, up to 1/4–1/3 the leaf width at base, more or less flat; upper leaf cells bistratose, dorsal cells small, irregularly quadrate, ca. 10–12 µm wide, with rather thick walls, ventral cells larger, irregularly quadrate to short-rectangular, 10–18 µm × 8–10 µm, with very thin walls; basal cells large, quadrate to rectangular, 15–40 µm × 11–15 µm, somewhat hyaline, with slightly thickened walls. Monoicous. Perichaetial leaves similar to the upper stem leaves. Setae straight, short, 0.7–1.1 mm long; capsules erect, exserted above the perichaetial leaves, hemispherical to broadly ovoid, 0.6–0.7 mm long, smooth; exothecial cells irregularly rectangular, thick-walled; stomata restricted to the base of urns; annuli differentiated, consisting of two rows of elongate, thick-walled cells; opercula conic, with a short to long, obtuse beak; peristome teeth lanceolate, irregularly divided into 2–3 filiform segments, sometimes irregularly perforate in the middle, densely coarsely papillose throughout on outer and inner surfaces. Calyptrae large, campanulate, covering most of the capsule, not hairy, deeply and longitudinally plicate, divided into narrow lobes at base. Spores spherical, 9–12 µm in diameter, yellowish brown, more or less granulose.
 
 
 


 

 
 
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