小叶新月蕨 xiao ye xin yue jue

Plants 25-40 cm tall. Rhizomes short and decumbent, with sparse narrowly lanceolate brown scales. Fronds remote; stipes 20-30 cm, bases sparsely scaly, distally shortly setaceous, stramineous; laminae elliptic, 12-18 × 11-14 cm, 1-imparipinnate; lateral pinnae 2 or 3 pairs, alternate, slightly bent distally, subsessile, proximal pair not reduced, ovate-lanceolate, 7-8 × 2-2.5 cm, not symmetrical, bases cuneate, margins slightly undulate, apices acuminate or acute; terminal pinna very large, symmetrical, bases cuneate, long stalked, apices acuminate. Veins evident, raised abaxially, costae grooved adaxially, proximal pair of veinlets forming a triangular areole, distally every pair joining with an excurrent veinlet into square or rectangular or subrhomboid areoles. Laminae dark brown-green when dry, papery, adaxially with dense appressed setae along costal grooves, veinlets and tissue between veins with sparse short hairs; abaxially veins with short hairs, mesophyll with long acicular hairs and foveolate. Sori orbicular, attached near ends of veinlets and often confluent, hairy on indusia and also on sporangia.

● Yunnan.