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Published In: Memoirs of the California Academy of Sciences 1: 27. 1868. (Mem. Calif. Acad. Sci.) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 4/3/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/6/2009)
General Reference:

Illustration & Map     (Last Modified On 5/6/2009)
Illustrations: Pogonatum contortum (Menzies ex Brid.) Lesq. (Figs. 1–12.)
Map: Pogonatum contortum (Menzies ex Brid.) Lesq. (Distribution in China)

Distribution     (Last Modified On 5/6/2009)
Habitat: mostly on forest ground, rarely on shady moist forest ground.
Distribution: China, Japan, Russia (Far East), and western North America.

Specimens Examined     (Last Modified On 5/6/2009)
Specimens Examined:
Chinese specimens examined: Guangdong: C. O. Levine 717 (PE); Mt. Luofu, Merrill 10419 (FH); Xin-feng Co., Y.-W. Taan 240 (FH). Guangxi: Qian-nan Co., S. K. Lan 4318 (PE). Hainan: Gan-nen Co., S.-K. Lan 5494 (IBSC). Sichuan: Mt. Omei, P.-C. Wu 5404 (PE). Taiwan: Tai-chuan Co., Shevock 18032 (CAS, MO).

Notes     (Last Modified On 5/6/2009)
general taxon notes:
This species is very similar to Pogonatum cirratum, but differs from the latter by having broader blades and serrulate lower leaf margins.


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4.  Pogonatum contortum (Brid.) Lesq.   扭叶小金发藓   niu ye xiao jin fa xian
Mem. Calif. Acad. Sci. 1: 27. 1868. Catharinella contorta (Brid.) Kindb., Rev. Bryol. 21: 35. 1894. Polytrichum contortum Menz. ex Brid., J. Bot (Schrader). 1800(2): 287. 1801. Type: North America, Menzies s.n.
Pogonatum asperrimum Besch., Ann. Sci. Nat., Bot., ser. 7, 17: 355. 1893.
Plants large, dark green, brownish green when old, tufted in large patches. Stems 5–10 cm long, usually simple. Basal leaves small, deciduous; upper leaves erect patent when moist, strongly crisped when dry, slightly constricted from rounded oval base to a broad lanceolate limb, sheathing indistinct, ca. 1 mm wide; leaf marginal cells 1–2 layers, up to 3 cells wide, rarely remotely grossly toothed, teeth consisting of several cells, light brown; costae broad, with spines on the back; lamellae ca. 40 ranks, disappearing along leaf margins, 2–3 cells high; apical cells of lamellae slightly differentiated, larger, round, 15–20 µm in diameter, thin-walled; other cells short-quadrate or nearly rectangular, 12–25 µm ×10–15 µm. Dioicous. Male plants dwarfed; perigonial leaves few. Setae single, dark brown, 20–30 mm long; capsules erect, narrowly ovoid, ca. 2.5 mm ×1.0 mm; exothecial walls mammillose; peristome teeth 32, ca. 0.25 mm long, lanceolate, obtuse at apex; membrane low. Spores 8–12 µm in diameter.


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