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

2. Dennstaedtia elwesii (Baker) Beddome, Handb. Ferns Brit. India. 26. 1883.

峨山碗蕨 e shan wan jue

Dicksonia elwesii Baker in Hooker & Baker, Syn. Fil., ed. 2, 54. 1874; Emodiopteris elwesii (Baker) Ching & S. K. Wu; Patania elwesii (Baker) Beddome.

Rhizome black, stout, woody, glabrous. Fronds scattered, stipe ca. 68 cm, ca. 5 mm in diam., black at base; rachis brownish straw-colored and concolorous upward, with brown scabrous marks, rounded beneath, grooved above; lamina brown-green when dried, tripinnatisect, narrowly oblong, ca. 50 × 22-25 cm, herbaceous, glabrous on both surfaces, attenuate acroscopically; pinnae many, almost opposite, 3-3.5 cm apart, spreading, very shortly stalked or almost sessile, basal pinnae ca. 7 cm, middle pinnae linear-lanceolate, ca. 13 × 2-2.3 cm, bipinnatisect; pinnules 25-30 pairs, oblong, very shortly stalked, complanate and spreading, catadromous or almost opposite, basal pair slightly longer, almost parallel to rachis or covering rachis, 1-1.5 cm × 4-6 mm, pinnatisect almost to costule; ultimate pinnules oblong, ca. 3 mm, slightly oblique upward, adjacent, 2- or 3-forked at apex; lobules entire, apex acute. Veins obvious on both surfaces, veinlets not reaching margin, each lobule with one veinlet, with clavate hydathode at apex. Sori orbicular, terminal on upper side of lobules of ultimate pinnules; indusium gray-green, bowl-shaped, glabrous, curved downward like a tobacco pipe.

About 2400 m. Sichuan [NW India].


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