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

77. Dryopteris marginata (C. B. Clark) Christ, Philipp. J. Sci., C. 2: 212. 1907.

边果鳞毛蕨 bian guo lin mao jue

Nephrodium filix-mas (Linnaeus) Richard var. marginatum C. B. Clarke, Trans. Linn. Soc. London, Bot. 1: 521. 1880; Aspidium filix-mas (Linnaeus) Swartz var. marginatum (C. B. Clarke) Christ; Dryopteris blinii H. Léveillé; D. chiui Ching; D. grandissima Tagawa; D. leveillei Nakai (1952), not Christ (1909); D. metcalfii Ching; N. marginatum (C. B. Clarke) C. Hope; Polystichum blinii (H. Léveillé) H. Léveillé & C. Christensen.

Plants up to 1.7 m tall. Rhizome stout, creeping, densely clothed with lanceolate, dark brown scales. Fronds strictly caespitose, approximate; stipe stramineous, stout, ca. 80 cm, ca. 1 cm in diam., base densely scaly; scales dark brown, oblong, ca. 3.5 × 1 cm, margin entire, apex acuminate; lamina deltoid-ovate, ca. 90 cm, base ca. 80 cm wide, twice pinnate-pinnatipartite, apex acuminate; pinnae ca. 10 pairs, remote, basal 1 or 2 pairs ovate-lanceolate, ca. 40 cm, widest at base, ca. 20 cm wide, with stalk ca. 2 cm, apex long acuminate; pinnules 12-14 pairs, oblique, remote, lanceolate, basal ones ca. 10 × 2.5 cm, base truncate, with stalk ca. 0.5 cm, apex acuminate; segments (tripinnate pinnules) ca. 10 pairs, oblique, remote, oblong, margin incised, apex obtuse, with deltoid teeth, base connected to costa by a narrow wing; pinnae above middle of lamina oblong, sessile, apex bluntly acuminate. Lamina herbaceous; rachis and costa subglabrous, sparsely clothed with lanceolate, pale brown scales and nodose, moniliform scales; veins pinnate, obscure adaxially, apex with hydathode, raised abaxially, conspicuous. Sori in 1 regular row on each side of center of pinnule or segment, not close to costa or costule; indusia ferruginous, orbicular-reniform, entire, persistent.

Forests, by streams; 900-2400 m. Guangxi, Guizhou, Jiangxi, Sichuan, Taiwan, Yunnan [Bhutan, India, Myanmar, Nepal, Thailand, Vietnam].

C. B. Clarke based his new taxon largely on "Aspidium marginatum Wallich" (Numer. List, no. 391. 1829, nom. nud.) but "not the type sheet."


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