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!Racomitrium cucullatulum Broth. 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: Symbolae Sinicae 4: 47. 1929. (Symb. Sin.) Name publication detailView in Biodiversity Heritage Library
 

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: Racomitrium cucullatulum Broth. (Figs. 1–14.)
Map: Racomitrium cucullatulum Broth. (Distribution in China)

Distribution     (Last Modified On 5/4/2009)
Distribution:

Habitat: on forest ground or rocks in grasslands.

Distribution: China and Sikkim.

 


Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:

Chinese specimens examined: Guangxi: Xing-an Co., C. Gao & G.-C. Zhang 1663 (IFSBH). Xizang: Ding-jie Co., M. Zang 775 (HKAS); Mo-tuo Co., S.-K. Chen 101 (HKAS); Ya-dong Co., Xizang Team 1663 (HKAS). Yunnan: Bi-jiang Co., M. Zang 594 (HKAS); Zhong-dian Co., Kunming Bot. Gard. 62-0002 (HKAS).

 


Notes     (Last Modified On 5/4/2009)
general taxon notes:

Racomitrium cucullatulum is characterized by its narrowly short ovate-lanceolate leaves that are cucullate, with or without short hair-points and a strongly convex costa on the dorsal side, and somewhat differentiated alar cells.


 

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9. Racomitrium cucullatulum Broth.   兜叶砂藓   dou-ye sha xian
Symb. Sin. 4: 47. 1929. Syntypes. China: Yunnan, between Landsang-djiang (Mekong) and Lu-djiang (Salwin), alt. 4200–4375 m, Handel-Mazzetti 9976 (syntype H); Sichuan, Hui-li Co., Handel-Mazzetti 951 (syntype H).
 
Plants medium-sized, 2–3 cm long, brownish, in dense tufts. Stems irregularly or subpinnately branched; central strand absent. Leaves imbricately appressed when dry, erect-spreading when moist, narrowly shortly ovate-lanceolate, 1.7–2.3 mm × 0.5–0.6 mm, cucullate and concave above, without or with very short, smooth hyaline hair-points; margins broadly recurved on one side to 3/4 the leaf length, plane or narrowly recurved on the other side to 1/2 the leaf length; costa percurrent, strongly convex on the dorsal side; upper and median leaf cells short-rectangular to rectangular, 7–25 µm × 6–8 µm, smooth, sinuosely thick-walled, bistratose at margins; basal cells elongate-rectangular, 25–40 µm × 7–8 µm, strongly sinuosely thick-walled; alar cells somewhat differentiated into a small group of yellowish, short-rectangular, straight and thin-walled cells. Perichaetial leaves broadly ovate- lanceolate, reflexed when moist, without hair-points. Setae erect, short, ca. 3.0–5.5 mm long; capsules cylindrical, ca. 1.6–1.8 mm long; opercula obliquely long-rostrate; peristome teeth linear-lanceolate, ca. 360 µm long, divided to the base, densely papillose. Spores spherical, ca. 12 µm in diameter.
 
 
 
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