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FOC | Family List | FOC Vol. 2-3 | Pteridaceae | Cheilanthes

11. Cheilanthes trichophylla Baker, Ann. Bot. (Oxford). 5: 211. 1891.

毛旱蕨 mao han jue

Cheilanthes delavayi Baker; C. undulata C. Hope & C. H. Wright; Pellaea trichophylla (Baker) Ching.

Rhizomes decumbent to erect, short; scales concolorous or somewhat bicolorous, dark brown to black, sometimes with very narrow, lighter brown margins, lustrous, subulate-lanceolate, stiff. Fronds tufted. Stipe dark brown to black, 10-30 cm × 1-2 mm, terete, with fine, orangish brown to brown, multicellular hairs of 2 kinds: moderate to dense, ascending, short hairs and scattered, longer, spreading hairs. Lamina dull brownish green when dry, deltoid-lanceolate, at least slightly longer than stipe, 5-15 cm wide, 2-pinnate-pinnatifid, papery, strigose on both surfaces, apex shortly acuminate; rachis flexuous; rachis, costae, and pinnule stalks dark brown, terete, densely pubescent with short, multicellular hairs. Pinnae 6-10 pairs, basal pair longest, deltoid or deltoid-lanceolate, 5-11 × 2.5-5 cm, stalks 5-12 mm, equilateral, apex acute. Pinnules 3-5 pairs, ovate-deltoid, 1.5-2.5 × 1-2 cm, stalks 1-2 mm, base rounded to truncate or somewhat cordate, pinnatifid, costules winged; segments oblong, margins usually entire. Sori confluent, sometimes interrupted at segment tip. False indusia continuous, narrow, margins undulate to crenulate. 2n = 60.

● Rock crevices in hot dry valleys or woods; 800-2500 m. W Sichuan, E Xizang, W Yunnan [possibly India (Sikkim)].


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