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Published In: Journal of the Linnean Society, Botany 12: 509. 1869. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 4/2/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/6/2009)
General Reference:

Illustration & Map     (Last Modified On 5/6/2009)
Illustrations: Ctenidium molluscum (Hedw.) Mitt. (Figs. 1–10.)
Map: Ctenidium molluscum (Hedw.) Mitt. (Distribution in China)

Distribution     (Last Modified On 5/6/2009)


Habitat: on rocks, boulders, tree trunks, branches, rotten wood or humus, rarely on soil in forests; alt. 700–3400 m.
Distribution: China, Turkey, Russia, Europe, North America, and Northern Africa.

Specimens Examined     (Last Modified On 5/6/2009)
Specimens Examined:
Chinese specimens examined: Chongqing: Nan-chuan Co., X.-Y. Hu 0202 (MO). Guangdong: Ru-yuan Co., Z.-H. Li 95029 (SYS). Guizhou: Jiang-kou Co., Mt. Fanjing, C. Gao & J.-Y. Feng 31988 (IFSBH); Sui-yang Co., C. Gao & J.-Y. Feng 32769, 33066, 33622, 33868 (all in IFSBH). Heilongjiang: Yu-chun Co., Linxingzu 84 (MO). Hunan: Liu-yang Co., C. Gao & G.-C. Zhang 400, 432, 461, 495 (all in IFSBH). Jiangxi: Mt. Lu, G.-X. Liang 37 (XBGH); Mt. Sanqing, E.-Z. Bai 37237, 37584, 37595 (all in IFSBH). Jilin: Mt. Changbai, C. Gao 22298 (IFSBH). Liaoning: Ben-xi Co., C. Gao & G.-C. Zhang 8340 (IFSBH). Shaanxi: Ning-shan Co., P.-C. Chen et al. 70 (MO). Sichuan: Mt. Omei, L.-Y. Dai s.n. (WH). Xinjiang: Mt. Altai, J.-J. Li & J.-C. Zhao 0941 (XJU). Xizang: S.-G. Wu 1087 (HKAS); Mo-tuo Co., Y.-G. Su 4338, 4972 (both in HKAS). Yunnan: Gong-shan Co., M.-Z. Wang 7954a (PE); Li-jiang Co., collector unknown s.n. (HKAS); Yi-liang Co., J.-X. Li 4447, 4515 (both in HKAS).

Notes     (Last Modified On 5/6/2009)
general taxon notes:
This species is characterized by the strongly falcate-secund stem and branch leaves and smaller, quadrate, and thick-walled alar cells. It appears to be rahter common in China, but Nishimura (1985) did not cite any Chinese specimens.


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8. Ctenidium molluscum (Hedw.) Mitt.   梳藓   shu xian
J. Linn. Soc., Bot. 12: 509. 1869. Thuidium molluscum (Hedw.) Mitt. ex Zodda, Nuovo Giorn. Bot. Ital., n.s., 19: 490. 1912. Stereodon molluscum (Hedw.) Mitt., J. Proc. Linn. Soc., Bot., 8: 153. 1864. Cupressina mollusca (Hedw.) C. Müll., Nuovo Giorn. Bot. Ital., n.s., 3: 121. 1896. Hypnum molluscum Hedw., Sp. Musc. Frond. 289. 1801. Type: Europe.
Hypnum ravandii Boul. subsp. balcaricum (Dix.) Wijk & Marg., Taxon 9: 51. 1960. Hypnum balearicum Dix., Broteria, Ci. Nat. 1: 87. 1932.
Plants small to medium-sized, yellowish green or yellowish brown, somewhat glossy. Stems prostrate, ca. 3 cm long, irregularly and densely branched; leafy stems mostly plane, recurved at apex, ca. 8 mm long; pseudoparaphyllia triangular-lanceolate. Stem leaves falcate-secund, 1.5–1.7 mm × 0.7–0.8 mm, ovate- or triangular-lanceolate, slenderly acuminate, cordate at base, long-decurrent; margins plane, rugose or slightly recurved at base, serrulate throughout; costae double, ca. 1/4 the leaf length; median leaf cells 40–50 µm × 4–5 µm, usually prorate, thick-walled; alar cells distinctly differentiated, quadrate to shortly rectangular, thick-walled, porose; branch leaves falcate-secund, 1.0–1.4 mm × 0.2–0.3 mm, narrowly ovate-lanceolate, slenderly acuminate. Dioicous. Inner perichaetial leaves erect, broadly ovate or triangular-lanceolate, upper leaf margins serrulate, costae single, or double, or sometimes indistinct, ca. 1/2 the leaf length, cells thick-walled, slightly porose. Setae ca. 2.5 cm long, reddish brown, smooth, sometimes twisted; capsules ovoid to ellipsoid, suberect to horizontal, 1.0–1.4 mm × 0.6–0.8 mm, slightly curved; opercula shortly rostrate. Spores 11–16 µm in diameter.


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