金佛山方杆蕨 jin fo shan fang gan jue

Plants ca. 1.5 m tall. Rhizomes decumbent. Fronds approximate; stipes ca. 54 cm, ca. 1 cm in diam. at bases, dark brown, distally grayish brown and glabrous; laminae broadly lanceolate, ca. 100 × 40 cm, pinnate-pinnatifid, pinnatifid at apices; free lateral pinnae usually ca. 32 pairs, spreading, sessile, proximal 5 pinnae abruptly reduced and hastate; middle pinnae narrowly lanceolate, ca. 25 × 3 cm, rounded-cuneate at bases, pinnatifid nearly to costae, acuminate at apices; segments more than 40 pairs, lanceolate, ca. 1.5 × 0.4 cm, entire, acute at apices. Veins evident, costae raised on both sides, veinlets 10 or 11 pairs per segment, proximal pair arising from base of costules, acroscopic veinlet reaching bottom of sinuses, basiscopic one reaching margins above sinuses. Laminae papery when dry, deep green, glabrous on both surfaces of intercostal areas, abaxially with long hairs along apices of costae, costules, and veinlets with sparse appressed short setae, adaxially with dense strong setae along rachises, costae, and veins. Sori orbicular, attached above middle part of veinlets and close to margins; indusia large, leathery, brown, glabrous, persistent.

● Mixed forests by streams; ca. 800 m. Chongqing (Jinfo Shan).