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FOC | Family List | FOC Vol. 2-3 | Dennstaedtiaceae | Dennstaedtia

7. Dennstaedtia scabra (Wallich ex Hooker) T. Moore, Index Fil. 307. 1861.

碗蕨 wan jue

Rhizome long creeping, red-brown, with dense, brown, transparent, articulate hairs. Fronds scattered; stipe red-brown or light chestnut-brown, slightly shiny, 20-35 cm, 2-3 mm in diam., abaxially rounded, adaxially grooved, stipe, rachis, and rhizome usually densely long hairy, glabrescent and scabrous when old. Lamina brown-green when dried, 3- or 4-pinnatisect at base, 3-pinnatisect above middle, triangular-lanceolate or oblong in outline, 20-29(-50) × 15-20 cm, firmly herbaceous, rachis and veins with dense, gray, transparent, articulate hairs on both surfaces; pinnae 10-20 pairs, almost alternate, oblique upward, oblong or oblong-lanceolate in outline, apex acuminate; basal pair largest, usually 10-14 × 4.5-6 cm, stalk ca. 1 cm, ca. 6 mm from next pair of pinnae, 2- or 3-pinnatisect; pinnules 14-16 pairs, oblong, usually 2.5-5 × 1-2 cm, gradually shorter upward, narrowly winged, shortly stalked, spreading, anadromous; acroscopic pinnae almost parallel with or covering rachis, bipinnatisect; pinnules broadly lanceolate, connected by narrow wing at base, pinnatisect 1/2-2/3 to midrib, apex obtuse or acuminate; ultimate pinnules entire or 1- or 2-divided; lobules obtuse, not serrate at margin. Veins pinnate and furcate, veinlets not reaching margin, each lobule with one veinlet, with fusiform hydathode at apex. Sori orbicular, terminal on lobule veinlets; indusium gray-green, bowl-shaped, densely hairy to glabrous.

Forests, near streams; 1000-2400(-3400) m. Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Japan, Korea, Laos, Malaysia, Philippines, Sri Lanka, Vietnam].

1 Both sides of lamina, rachis, rachillae, and costae densely hairy; indusium densely hairy.   7a var. scabra
+ Lamina glabrous or with a few sparse hairs; indusium glabrous.   7b var. glabrescens

Lower Taxa


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