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Published In: Journal of the Linnean Society, Botany 12: 502. 1869. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 3/23/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/5/2009)
General Reference:

Illustration & Map     (Last Modified On 5/5/2009)
Illustrations: Leucomium strumosum (Hornsch.) Mitt. (Figs. 1–9.)
Map: Leucomium strumosum (Hornsch.) Mitt. (Distribution in China)

Distribution     (Last Modified On 5/5/2009)
Habitat: on the forest floors, decaying logs, rocks, and moist soil.
Distribution: China, India, Sri Lanka, Thailand, Malaysia, Indonesia, the Philippines, Papua New Guinea, New Caledonia, Fiji, Central America, Caribbean, South America, and Africa.

Specimens Examined     (Last Modified On 5/5/2009)
Specimens Examined:
Chinese specimens examined: Hainan: Mt. Jianfengling, P.-C. Chen et al. 590 (PE). Xizang: Mo-tuo Co., Y.-G. Su 2837 (HKAS, MO), 2960 (HKAS). Yunnan: Nan-jian Co., J.-K. Zhang 1616a (YUN); Xishuangbanna, L. Zhang 320, 565, 572, 810, 850, 856 (HKAS); Yun-xian Co., J.-K. Zhang 1563b, 1579b, 1587b (YUN).


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1. Leucomium strumosum(Hornsch.) Mitt.   白藓   Bai xian
J. Linn. Soc. Bot. 12: 502. 1869. Hypnum strumosum (Hornsch.) C. Müll., Syn. 2: 238. 1851. Hookeria strumosa Hornsch., Fl. Bras. 1(2): 69. 1840. Type. Brazil: Serra dos Orgaô, prope Tijucam, Olfers s.n.
Leucomium aneurodictyon (C. Müll.) Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 275. 1880. Hypnum aneurodictyon C. Müll., Syn. Musc. Frond. 2: 681. 1851.
Plants slender, soft, whitish to yellowish green, in loose mats. Stems creeping, irregularly or sparsely branched. Leaves contorted when dry, more or less flattened when wet, leaf shape extremely variable, but usually 1.5–2.0 mm long, slightly asymmetric, becoming narrow at base, oblong-ovate, gradually lanceolate above, apices acute to acuminate; leaf margins entire; costa none; laminal cells loose, thin-walled, smooth, elongate-hexagonal or lineariform, short at base; alar cells not differentiated. Autoicous or synoicous. Setae reddish brown, 8–18 mm long, incurved, somewhat papillose at top; capsules ca. 0.8 mm long, ovoid or oblong-ovoid, horizontal to pendulous; stomata superficial; opercula long-rostrate, the same length as hypophysis; exostome teeth narrowly lanceolate, thin, hyaline, longitudinal furrows in the center, with dense ridges and stripes outside, densely striate; endostome segments densely papillose, folded; basal membrane high; cilia absent or reduced. Calyptrae long-cucullate, smooth, sparely pilose. Spores 8–10 µm in diameter.


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