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

40. Athyrium multipinnum Y. T. Hsieh & Z. R. Wang, Acta Bot. Boreal.-Occid. Sin. 7(1): 55. 1987.

多羽蹄盖蕨 duo yu ti gai jue

Rhizomes erect, apex densely clothed with red-brown, ovate-lanceolate or linear-lanceolate scales. Fronds caespitose; fertile fronds 18-35 cm; stipe stramineous, 2-6.5 cm, 0.5-1.5 mm in diam., flattened when dried, base similarly scaly; lamina pinnate, linear-lanceolate or lanceolate, 13-26 × 2.8-5.2 cm, base slightly narrowed, apex long acuminate; pinnae 20-30 pairs, lower pinnae opposite, upper pinnae alternate, subspreading or ascending, sometimes falcate, sessile; basal 1 or 2 pairs of pinnae shortened, deltoid-ovate or ovate-oblong, ca. 1.4 cm × 8 mm, base truncate, pinnatilobate or pinnatipartite, apex obtuse-rounded; lobes 2 or 3 pairs, suboblong, with variably short broad teeth at margin; middle pinnae deltoid-lanceolate or narrowly oblong, 1.5-2.4 cm × 9-10 mm at middle, base inequilateral, truncate, auriculate on acroscopic side, parallel to rachis, narrowly cuneate on basiscopic side, pinnatipartite, apex obtuse-rounded or obtuse; pinna segments 5-8 pairs, oblong, with 4 or 5 teeth at acroscopic margin; veins visible on both surfaces, pinnate in segments, lateral veins 2 or 3 pairs, simple, 4 pairs in basal segments, and sometimes 2- or 3-forked. Lamina thinly herbaceous when dried, yellow-green, glabrate on both surfaces; rachis stramineous, slightly brownish, somewhat subulate spines at base of pinnae on adaxial side, costae concolorous with lamina, with short spines on adaxial side at base of distal pinna segments. Sori elliptic, J-shaped, or horseshoe-shaped, 1 per segment, often 3 in basal segments; indusia brownish, elliptic, J-shaped, or horseshoe-shaped, membranous, subentire, persistent. Perispore surface without folds, with granular ornamentation.

● Valley forests, streamsides, wet rock crevices; 100-1500 m. Guizhou, Hunan, Jiangxi, Zhejiang.


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