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FOC | Family List | FOC Vol. 2-3 | Polypodiaceae | Arthromeris

11. Arthromeris lehmannii (Mettenius) Ching, Contr. Inst. Bot. Natl. Acad. Peiping. 2(3): 96. 1933.

节肢蕨 jie zhi jue

Polypodium lehmannii Mettenius, Abh. Senckenberg. Naturf. Ges. 2: 117. 1856; Arthromeris pinnata (Hayata) Ching; A. tibetana Ching; A. tibetana var. glabrescens Ching & S. K. Wu; Pleopeltis lehmannii (Mettenius) Beddome; Polypodium pinnatum Hayata; P. quasipinnatum Hayata.

Rhizome 4-5 mm in diam., densely or sparsely scaly and covered with whitish bloom; scales brown at center, paler toward margin, broad at peltate base, 4-6 mm, margin minutely toothed, apex long caudate. Stipe stramineous or light castaneous, 10-20 cm, glabrous; rachis stramineous, glabrous; lamina imparipinnate, oblong-ovate in outline, 30-40 × 15-20 cm; pinnae usually 5-8 pairs, subopposite, sessile, spreading or slightly ascending, straight, lanceolate, base rounded or subcordate, overlapping rachis, margin entire or undulate with cartilaginous membrane up to 1.5 mm wide, apex acuminate; teminal pinna same as lateral pinnae; lamina papery or herbaceous, green, both surfaces usually glabrous, rarely abaxially sparsely pubescent. Sori orbicular or elliptic, variable in size, mostly in 2 or 3 rows along costa, in 1 series between lateral veins. 2n = 74.

Epiphytic on tree trunks or epilithic; 500-2900 m. Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, N India, Myanmar, Nepal, Philippines, Thailand, Vietnam].


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