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!Racomitrium ericoides (Brid.) Brid. 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: Muscologia Recentiorum Supplementum 4: 78. 1819[1818]. (Muscol. Recent. Suppl.) Name publication detail
 

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

Illustration & Map     (Last Modified On 3/16/2009)
Related Objects:
Illustrations: X.-J. Li (ed.) 2000 (Pl. 20, figs. 1–12).


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Map: Racomitrium ericoides (Brid.) Brid. (Distribution in China)

Distribution     (Last Modified On 3/16/2009)
Distribution:
Habitat: on rocks, sometimes on ground in forests; alt. 1150–3740 m.
Distribution: China, Japan, Europe, and North America.

Specimens Examined     (Last Modified On 3/16/2009)
Specimens Examined:
Chinese specimens examined: Anhui: Jin-zhai Co., Z.-M. Zeng T0306 (MO). Chongqing: Nan-chuan Co., T. Cao & Q. Li 41535 (IFSBH). Gansu: Wen Co., Z.-P. Wei 6803 (IFSBH). Guizhou: Wei-ning Co., Z.-W. Li 478 (PE). Hubei: Mt. Shennongjia, Sino-Amer. Exped. Team 1368 (H, IFSBH, MO, NY). Jiangxi: Mt. Jinggang, E.-Z. Bai & J.-Y. Feng 37730 (IFSBH). Jilin: Mt. Changbai, S.-E. Liu 1546 (IFSBH), Koponen 36666 (H, IFSBH, NY). Nei Mongol: Da Xing An Ling (Greater Khingan Mt.), Gen-he, P.-C. Chen & C. Gao 785 (IFSBH). Shaanxi: Lue-yang Co., H.-L. Wang 555 (IFSBH); Mt. West Taibai, Z.-P. Wei 6022 (IFSBH); Yang Co., Z.-P. Wei 675 (IFSBH). Sichuan: Bao-xing Co., G.-L. Qu 3017 (BM); Lu-ding Co., Y. Xuan 82-0027 (HKAS); Mu-ping Co., X.-Y. Hu 1 (PE); Mt. Omei, D.-K. Li 16081 (SHM); Tian-quan Co., Mt. Er-lang, Q. Li 1569 (IFSBH). Taiwan: Ilan Co., C.-C. Chuang 2224 (MO); Mt. Taiping, C.-C. Chuang 2224 (ALTA, H. NY); Mt. Nanhu Dashan, C.-C. Chuang 1773 (H, NY); Tai-tung Co., M.-J. Lai 9534 (MO), Suzuki 2658 (H). Xizang: Bo-mi Co., Y.-G. Su 922 (HKAS); Lin-zhi Co., Y.-G. Su 2492 (HKAS); Mi-lin Co., Y.-G. Su 5258 (HKAS); Mo-tuo Co., G.-C. Zhang & J.-Y. Feng 15085 (IFSBH). Yunnan: Da-guan Co., X.-J. Li 4085 (HKAS); Gong-shan Co., D.-C. Zhang 3255 (HKAS); Wei-xi Co., D.-C. Zhang 585 (HKAS); Yi-liang Co., X.-J. Li 4510 (HKAS); Zhen-xiong Co., S.-G. Wu 46221 (HKAS).

Notes     (Last Modified On 3/16/2009)
general taxon notes:
 
The characters that separate Racomitrium ericoides from the other species in the Racomitrium canescens complex are: 1) primary stems elongate and slender, pinnately branched with numerous short branches; 2) branch leaves often contorted when dry, with twisted hyaline hair-points; and 3) leaf cells distinctly papillose and alar cells clearly differentiated. In Asia, Racomitrium ericoides often is treated as a variety of R. canescnes (Noguchi 1974). Heinonen (1971) considered its pinnately branched stems, percurrent leaf costa, and small papillae of leaf cells to be distinguishing features from R. canescens.

 

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10. Racomitrium ericoides (Hedw.) Brid.   长枝砂藓   chang-zhi sha xian
Muscol. Recent. Suppl. 4: 78: 1819[1818]. Grimmia ericoides (Hedw.) Lindb., Musci Scand. 29. 1879, hom. illeg. Grimmia canescens (Hedw.) Brid. var. ericoides (Hedw.) C. Müll., Syn. Musc. Frond. 1: 807. 1849. Trichostomum ericoides (Hedw.) Brid., J. Bot. (Schrader) 1800(2): 290. 1801. Trichostomum canescens Hedw. var. ericoides Hedw., Sp. Musc. Frond. 111. 1801. Type. Europe.
Racomitrium canescens (Hedw.) Brid. var. epilosum H. Müll. ex Milde, Bryol. Siles. 160. 1869.
 
Plants slender, medium-sized to large, 3–10 cm long, yellowish green above, yellowish brown below, in extensively loose or dense cushions. Stems creeping, subpinnately to pinnately branched, with short branches; central strand absent. Stem leaves loosely imbricate when dry, erect-spreading when moist, ovate-lanceolate, keeled above, often plicate below, 2.8–3.0 mm × 0.8–1.2 mm, with contorted, hyaline, papillose, dentate hair-points; branch leaves densely imbricate, contorted, sometimes undulate when dry, erect-spreading or reflexed when moist, lanceolate, keeled above, plicate below, 2.8–3.5 mm × 0.5–0.6 mm, with long hyaline, dentate, papillose hair-points; margins recurved on both sides; costa percurrent; upper leaf cells quadrate or short-rectangular, 6–12 µm × 4–6 µm, sinuosely thick-walled, papillose, unistratose at margins; median cells rectangular, 11–23 µm × 3–5 µm, sinuosely thick-walled, papillose; basal cells elongate-rectangular, 23–46 µm × 3–4 µm, strongly sinuosely thick-walled, papillose; alar cells differentiated, consisting of 15–20 inflated, short-rectangular, thin-walled cells. Perichaetial leaves smaller than stem leaves. Setae erect, dark brownish, ca. 15 mm long; capsules erect, cylindrical, dark brownish, ca. 3 mm long; peristome teeth linear, ca. 1.0 mm long, reddish brown, divided to the base, minutely papillose. Spores not seen.
 
 
 
 
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