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Published In: Bulletin de l'Herbier Boissier, sér. 2 8: 335. 1908. (30 Apr 1908) (Bull. Herb. Boissier, sér. 2) 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 nitidulum Cardot (Figs. 1–11.)
Map: Racomitrium nitidulum Cardot (Distribution in China)

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

 

Habitat: on sandy slopes or rocks in high mountains.
Distribution: China and Japan.
 

Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:
Chinese specimens examined: Fujian: Mt. Wuyi, D.-K. Li & C.-H. Gao 13962 (IFSBH, SHM). Jilin: Mt. Changbai, C. Gao 1074, 1191, 7447 (all in IFSBH), C. Gao 22279 (IFSBH, NY), Koponen 36696 (H, IFSBH).
 

Notes     (Last Modified On 5/4/2009)
general taxon notes:
Racomitrium nitidulum is characterized by having densely tufted plants with numerous, irregularly subpinnately branched stems, shortly ovate-lanceolate leaves without or with very short hyaline hair-points, smooth, unistratose leaf cells with sinuosely thick walls, and differentiated alar cells that are somewhat auriculate.

 

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19. Racomitrium nitidulum Card.   阔叶砂藓   kuo-ye sha xian
Bull. Herb. Boissier, ser. 2, 8: 335. 1908. Racomitrium heterostichum var. nitidulum (Card.) Nog., Misc. Bryol. Lichenol. 1(15): 2. 1958. Type. Japan: Shizuoka Pref., Mt. Fujiyama, Faurie 338.
Racomitrium sudeticum var. robustum Broth. ex Ihs., Classif. Mosses Japan 93. 1932, hom. illeg.
 
Plants medium-sized to large, up to 6 cm long, yellowish green or brownish green above, brownish below, in dense cushions. Stems densely irregularly subpinnately branched; central strand absent. Leaves imbricately appressed when dry, erect-spreading when moist, narrowly ovate-lanceolate, shortly acuminate, 1.7–2.5 mm long, without or with very short, smooth, hyaline hair-points; margins recurved on one side to 1/2–3/4 the leaf length, plane or shortly recurved on the other side; costa strong, percurrent, convex on the dorsal side; leaf cells unistratose throughout, smooth, strongly sinuosely thick-walled; upper cells rounded-quadrate to shortly rectangular, 4–12 µm × 5–9 µm; median cells rectangular, 9–24 µm × 5–7 µm; basal cells elongate-rectangular to linear, 15–36 µm × 5–7 µm, porose; alar cells differentiated, yellowish or orange, somewhat auriculate, consisting of 3–5 rows of enlarged, quadrate or rectangular cells, with straight walls. Perichaetial leaves shortly ovate-lanceolate, without hyaline hair-points. Setae erect, 5–7 mm long; capsules cylindrical, 1.5–2.0 mm long; peristome teeth linear-lanceolate, divided to the base, densely papillose. Calyptrae not seen. Spores not seen.
 
 
 
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