滇蕨 dian jue

Woodsia indusiosa Christ in Lecomte, Notul. Syst. (Paris) 1: 44. 1909; Cheilanthes straminea Brause; Cheilanthopsis straminea (Brause) Hieronymus ex Copeland.

Plants 25-50 cm. Rhizomes ascending, apex densely covered with scales; scales brown, broadly lanceolate, up to 1 cm, entire. Fronds clustered; stipe stramineous, 3-11 cm, 1-2 mm in diam., brittle, densely covered with scales, articulate hairs sparse when young, deciduous, middle and upper parts glabrous; lamina 1-pinnate-pinnatifid, lanceolate, 25-40 × 5-6.5 cm, herbaceous, densely covered with articulate hairs and glands on both surfaces, base attenuate, apex acuminate; rachis pale stramineous, with articulate hairs and sparse brown, narrowly lanceolate scales; pinnae 25-30 pairs, spreading or slightly oblique, sessile; lower pinnae reduced to lobes, lobes triangular, ligulate or auriculate, remote; middle pinnae largest, lanceolate, 2-3.5 cm × 3-10 mm, base truncate, margin pinnatifid, apex obtuse; lobes 7-12 pairs, opposite, spreading, hemielliptic; basal lobes largest, 3-5 mm, undulate. Veins free, obscure. Sori consisting of 4-8 sporangia, located at vein endings, submarginal; indusia not conspicuous, thinly membranous; false indusia orbicular-hemiovate, large, membranous, nearly reaching midvein, fimbriate. 2n = 74.

On rocks in broad-leaved forests; 2100-3200 m. SW Sichuan, NW Yunnan [Bhutan].