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

63. Polystichum salwinense Ching & H. S. Kung, Bull. Bot. Res., Harbin. 9(3): 7. 1989.

怒江耳蕨 nu jiang er jue

Plants summer-green. Rhizome erect, covered with broadly lanceolate brown scales. Fronds 20-35 cm; stipe amber, 8-14 cm, ca. 3 mm in diam. at base, lower part persistent, densely covered with lanceolate and linear light brown scales, and mixed with ovate and lanceolate scales with blackish brown centers. Lamina bipinnatifid, linear-lanceolate, 28-30 × 3-3.5 cm, contracted at base, acuminate; rachis without proliferous bulbils, densely covered with scales on both surfaces; scales light brown, narrowly lanceolate and linear, abaxially mixed with lanceolate purplish brown scales. Pinnae 26-30 pairs, alternate, strongly ascendant, slightly approximate, but approximate on lower lamina, sessile, oblong or ovate, middle pairs 1.8-2 × 1-1.2 cm, broadly cuneate, pinnatifid to pinna rachis, rounded or acute. Lobes 3-5 pairs, nearly opposite, slightly ascendant, approximate, oblong, with several long acute teeth, apices acute or nearly rounded; both surfaces scaly; microscales denser abaxially, light brown, narrowly lanceolate; frond texture papery; venation pinnate on lobes, indistinct on both surfaces. Sori on upper pinnae, in 1 row on each side of pinna rachis, or 1 or 2 on each side of midrib of basiscopic lobes; indusia present, subentire.

Abies forests, meadows; 3500-4000 m. NW Yunnan (Dali, Dêqên, Gongshan).


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