缙云溪边蕨 jin yun xi bian jue

Plants ca. 60 cm tall. Rhizomes strong, suberect, with dark brown shortly hairy lanceolate scales and few multicellular translucent acicular hairs at apices. Fronds clustered; stipes 25-30 cm, dark stramineous on proximal part and sparsely scaly, distally stramineous, throughout shortly setaceous; laminae oblong-lanceolate, 25-34 × 10-12 cm, almost or slightly narrowed to bases, 1-pinnate, pinnatifid-acuminate at apices; pinnae 10-14 pairs (proximal 5 or 6 pairs free from rachises), subopposite, sessile, spreading, proximal pair slightly shortened (ca. 4.5 cm), above one lanceolate, 5-6 × ca. 1.5 cm, bases rounded-cuneate and slightly narrowed, sessile, distal ones of similar shape, but ± adnate to rachises at bases, distal ones gradually reduced and completely adnate to rachises at bases, entire or slightly undulate. Veins evident, veinlets oblique distally, veinlets ca. 3 pairs, bent, proximal 2 pairs (sometimes 1.5 pairs) joining by their ends, proximal pair arising far above base of costules. Laminae greenish when dry, somewhat papery, abaxially with sparse short hairs on laminae, adaxially glabrous, setaceous along margins, with unicellular long setae along abaxial side of rachises, shortly setaceous along costae and veins, with dense appressed setae along adaxial side of costae, sparsely setaceous along veins. Sori linear, attached along veinlets; indusia shortly setaceous near apices of sporangia.

● Beneath bamboo on sunny slopes. Chongqing (Beibei, Jinyun Shan).