柔毛方杆蕨 rou mao fang gan jue

Plants ca. 65 cm tall. Rhizomes not seen. Stipes ca. 34 cm, stramineous, grooved adaxially, with sparse brown scales, glabrous; laminae broadly lanceolate, ca. 32 × 20 cm, not tapering to bases, pinnate-pinnatifid, acuminate at apices; pinnae 24 pairs, sessile, pinnae below middle opposite, spreading, distal ones alternate, obliquely spreading, proximal 2 pairs not shortened, reflexed, of similar size as distal ones, but cuneate at bases; distal pinnae lanceolate, ca. 10 × 1.6 cm, bases widest, rounded-cuneate, pinnatifid nearly to costae, apices acuminate; segments ca. 25 pairs, falcate-lanceolate, ca. 7 mm (basal acroscopic one ca. 1 cm), ca. 2.5 mm wide, pointed at apices. Veins not evident, veinlets ca. 9 pairs per segment, basal acroscopic veinlet reaching bottom of sinuses, basiscopic one reaching margins above sinuses. Laminae papery, grayish green when dry, abaxially with dense grayish white acicular hairs along costae, veins, and intercostal areas, adaxially densely hairy along costae, glabrous on intercostal areas. Sori orbicular, 5-7 pairs per segment, attached near bases of veinlets and in one row on each side of costules; indusia bearing long hairs. Sporangia glabrous.

● In shade and wet limestone crevices; ca. 700 m. Yunnan.