裸叶粉背蕨 luo ye fen bei jue

Rhizomes ascending, short; scales bicolorous, dark brown to black with lighter margins, lanceolate. Fronds clustered. Stipe reddish brown to black, lustrous, 6-25 cm, scaly at base; scales mostly bicolorous, narrowly lanceolate. Lamina pentagonal or ovate-pentagonal, nearly as long as broad, 5-13 × 5-10 cm, pinnate-pinnatifid to tripinnatifid, thinly leathery when dry, apex acuminate; rachis and costae of same color as stipe. Pinnae 2 or 3 pairs, basal pair largest, 3-5 × 2-4 cm, triangular; pinnules 3 or 4 pairs, basal basiscopic pinnule largest, 2-2.5 cm × 5-10 mm, oblong-lanceolate, pinnatifid or simple; other pairs gradually shortened distally, lanceolate, 1-pinnatifid or simple; ultimate segments deltoid or falcate. Veins pinnate, obscure. Sori consisting of several sporangia, confluent at maturity. False indusia continuous, yellowish green, membranous, margins entire.

● Rock crevices or rock outcrops in forests; 800-2300 m. Guangxi, Guizhou, Hunan, Sichuan, Yunnan.

Lower Taxa

• Aleuritopteris duclouxii var. duclouxii
• Aleuritopteris duclouxii var. sulphurea (Ching) ching