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FOC | Family List | FOC Vol. 2-3 | Dryopteridaceae | Dryopteris

58. Dryopteris alpestris Tagawa, Acta Phytotax. Geobot. 3: 88. 1934.

多雄拉鳞毛蕨 duo xiong la lin mao jue

Plants 9-25 cm tall. Rhizome erect, short, densely scaly; scales brown, ovate, entire. Fronds caespitose; stipe stramineous or dark brown, 3-10 cm, with sparse scales similar to those on rhizome; lamina oblong-lanceolate, 8-18 × 2-5 cm, bipinnate, slightly narrowed to base, apex obtuse; pinnae 8-10 pairs, oblique or spreading, approximate, shortly stalked, basal pair slightly shorter than next one, ovate or oblong, 2-2.5 cm, ca. 1.3 cm wide at base, apex obtuse; pinnules 3-5 pairs, approximate, spreading, ovate-orbicular, base broadly adnate to costa, apex rounded, strongly dentate, basal pair 5-7 mm in length and width. Lamina herbaceous, glabrous on both surfaces; veins obscure on both surfaces, one vein per tooth; rachis with ovate, brown scales, rachis and stipe with dense, yellow glands (white when young). Sori limited to upper part of frond, 2 or 3 pairs on each pinnule; indusia brown, membranous, with sparse teeth.

Thickets, stone crevices, forests, grasslands on slopes; 3100-4200 m. Taiwan, Xizang, Yunnan [India (Sikkim), Nepal].


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