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

24. Polystichum baoxingense Ching & H. S. Kung, Acta Bot. Boreal.-Occid. Sin. 9: 271. 1989.

宝兴耳蕨 bao xing er jue

Plants evergreen. Rhizome erect, stout, densely scaly; scales brown, broadly lanceolate. Fronds 30-60 cm; stipe stramineous, 16-26 cm, 4-6 mm in diam. at base, densely scaly; scales brown, ovate and broadly lanceolate. Lamina bipinnate, narrowly ovate to narrowly oblong, 28-50 × 9-12 cm, rounded-cuneate, acuminate; rachis without proliferous bulbils, densely scaly on both surfaces; scales brown, lanceolate and linear, margins ciliate. Pinnae 23-24 pairs, alternate, slightly ascendant, approximate, narrowly lanceolate, sometimes falcate, middle pairs 5.5-8 × 1.5-2.5 cm, obliquely broadly cuneate or nearly truncate, shortly stalked, pinnate, acuminate. Pinnules 10-12 pairs, alternate, slightly ascendant, approximate, obliquely ovate or narrowly ovate, bases obliquely broadly cuneate, apices acute and spinulose; auricles deltoid; basal acroscopic pinnules largest, 1.2-2 cm × 6-8 mm, pinnatilobate, margins serrulate; abaxially scaly; microscales filiform, strongly ciliate at base; frond texture leathery; venation pinnate on pinnules, slightly concave abaxially, indistinct adaxially. Sori in 1 row on each side of midrib, 3-7 per pinnule; indusia present, entire.

● Forests; 1200-2300 m. Guizhou, W Hubei (Hefeng), S Shaanxi (Pingli), Sichuan.


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