毛囊方杆蕨 mao nang fang gan jue

Plants to 1.2 m tall. Rhizomes strong and decumbent, subwoody and glabrous. Fronds subapproximate; stipes ca. 50 cm, stramineous, glabrous; laminae narrowly oblong, ca. 70 × 27 cm, not tapering to bases, pinnate-pinnatifid and reaching both lateral narrow wings of costae, acuminate and pinnatifid at apices; pinnae 25-30 pairs, opposite or subopposite, sessile, spreading, proximal several pairs not shortened, reflexed, bases tapering; middle pinnae linear-lanceolate, ca. 17 × 2 cm, bases truncate and to 3 cm wide, symmetrical, pinnatifid to both lateral narrow wings of costae, apices long acuminate; segments 25-30 pairs, spreading, lanceolate, ca. 9 mm (proximal pair to 1.5 cm), ca. 3 mm wide, gradually broadened to bases, entire, acute at apices. Veins evident, 11 or 12 pairs of veinlets per segment, proximal pair arising from base of costules and all reaching both sides near sinuses. Laminae papery, greenish or dark green when dry, rachises adaxially with hairs, costae, veins, and abaxial surfaces of intercostal areas all glabrous. Sori orbicular, 6-9 pairs per segment, attached at bases of veinlets and in rows close to costules, indusia scaly and small. Sporangia each with acicular hairs near top.

● Forests in ravines; 700-1500 m. Chongqing (Nanchuan).