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

8. Polystichum pseudosetosum Ching & Z. Y. Liu, Bull. Bot. Res., Harbin. 4(4): 19. 1984.

假线鳞耳蕨 jia xian lin er jue

Plants evergreen. Rhizome erect, densely covered with lanceolate dark brown scales. Fronds ca. 40 cm; stipe stramineous, ca. 14 cm, ca. 3 mm in diam. at base, densely scaly; scales dark brown, linear and linear-lanceolate, lower part of stipe mixed with larger scales, larger scales brown, lanceolate. Lamina bipinnate, broadly lanceolate, 28-30 × 6.5-8 cm, slightly contracted and becoming rounded-cuneate toward bases, acuminate; rachis stramineous, densely scaly abaxially, without proliferous bulbils; scales brown, linear with dilated base, margins ciliate. Pinnae 28 pairs, alternate, slightly ascendant, shortly stalked, lanceolate, middle pairs 4-5 × 1-1.2 cm, bases oblique, acroscopic margins truncate, basiscopic side broadly cuneate, pinnate, apex acuminate. Pinnules 5-8 pairs, alternate, ascendant, lower pairs shortly stalked, obliquely oblong or ovate, 0.8-1.2 cm × 4-5 mm, obliquely cuneate, acroscopic bases exauriculate, entire, acute; basal acroscopic pinnule largest, deltoid-ovate, acroscopic margins almost entire; both surfaces glabrous; frond texture thinly leathery; venation pinnate on pinnules, indistinct on both surfaces or concave adaxially. Sori in 1 row on each side of pinnule midrib; indusia present, entire.

● Broad-leaved forests; ca. 1600 m. Chongqing (Nanchuan).


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