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FOC | Family List | FOC Vol. 2-3 | Athyriaceae | Athyrium

23. Athyrium sericellum Ching, Acta Bot. Boreal.-Occid. Sin. 6(1): 17. 1986.

绢毛蹄盖蕨 juan mao ti gai jue

Rhizomes short, erect, apex densely clothed with thick, lanceolate, brown scales. Fronds caespitose; fertile fronds 34-42 cm; stipe stramineous, up to 14 cm, ca. 2 mm in diam., base similarly densely scaly, upward glabrate; lamina 2-pinnate, broadly lanceolate, 20-28 × 8-11 cm at middle, base slightly narrowed, apex acuminate and toothed; pinnae 14-18 pairs, lower pinnae opposite; upper pinnae alternate, spreading, subsessile, 1 or 2 pairs of lower pinnae slightly shortened, 3.5-5 cm, slightly reflexed; middle pinnae lanceolate, 5-6.5 × 1.2-1.5 cm, base equilateral, subtruncate or rounded-truncate, broadened, pinnatipartite 1/2-2/3 to costa or almost to costa, apex acuminate; pinna segments ca. 13 pairs, approximate, slightly ascending, oblong, ca. 7 × 3.7 mm, decurrent to wing of costa, margin toothed ca. 1/2 from costa and upward, apex obtuse; veins visible abaxially, pinnate in segments, lateral veins ca. 5 pairs, simple. Lamina papery when dried, brown-green, densely sericeous adaxially, abaxially glabrate except costae densely sericeous. Rachis stramineous, grooved adaxially, densely pilose. Sori oblong, basal acroscopic ones often horseshoe-shaped, inframedial; indusia brownish, oblong or horseshoe-shaped, membranous, erose at margin, persistent. Perispore surface without folds, with granular ornamentation.

● Shrubby woods; ca. 1700 m. Chongqing (Jinfo Shan).


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