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

58. Polystichum habaense Ching & H. S. Kung, Bull. Bot. Res., Harbin. 9(3): 4. 1989.

哈巴耳蕨 ha ba er jue

Plants summer-green. Rhizome erect, with broadly lanceolate dark brown scales. Fronds 22-28 cm; stipe brown, 10-14 cm, ca. 3 mm in diam. at base, lower part persistent; lower stipe scales brown, dark brown at middle, ovate. Lamina bipinnatifid, linear-lanceolate or linear-oblanceolate, 20-26 × 2.5-3 cm, slightly contracted at base, acuminate; rachis without proliferous bulbils, lower part purplish brown, sparsely covered with lanceolate and linear scales, abaxially sparsely scaly; scales light brown, lanceolate and linear, mixed with brown scales. Pinnae 24-30 pairs, alternate, overlapping or approximate, sessile, ovate or deltoid-ovate, upper pinnae narrower, middle pairs 1.2-1.5 cm × 7-9 mm, bases rounded-cuneate or nearly truncate, auriculate acroscopically and basiscopically, sometimes acroscopic auricles longer, pinnatifid, apices acute, obtuse, or rounded. Lobes 3-6 pairs, alternate, slightly ascendant, approximate, oblong to obovate, with several small teeth, acute or obtuse; abaxially with narrowly lanceolate and linear light brown microscales, adaxially glabrous; frond texture papery; venation pinnate on lobes, indistinct on both surfaces. Sori on upper pinnae, on each side of midrib, or in 1 row on each side of pinna rachis; indusia present, toothed.

● Margins of alpine coniferous forests, Rhododendron shrubs; 3700-4100 m. NW Yunnan (Zhongdian).


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