喜马拉雅茯蕨 xi ma la ya fu jue

Leptogramma yunnanensis Ching; Stegnogramma himalaica (Ching) K. Iwatsuki; Thelypteris himalaica (Ching) C. F. Reed.

Plants 30-35 cm tall. Rhizomes short and erect. Fronds clustered; stipes to 20 cm, grayish stramineous proximally, densely pubescent and with 1 or 2 reddish brown lanceolate hairy scales, distally stramineous, polished and subglabrous; laminae lanceolate, 22-26 × 6.5-8 cm, not tapering to bases, 1-pinnate, acuminate at apices; pinnae 12-16 pairs, opposite, distal ones alternate, sessile, proximal 2 or 3 pairs free, distal ones ± adnate to rachises; middle pinnae lanceolate, 3-3.5 × ca. 1 cm, bases truncate, symmetrical, pinnatifid to 1/3 of distance to costae, apices shortly pointed or acute; segments 6-8 pairs, ovate, separated by obtriangular sinuses. Veins evident, 3 pairs per segment, proximal pair arising above base of costules and all reaching sinuses. Laminae herbaceous, when dry dark green, pinnae with sparse acicular hairs adaxially, abaxially pubescent throughout. Sori linear, attached on middle of veinlets. Sporangia each with 3 or 4 setae near top.

Shaded places by rocks or slopes; 2100-2500 m. Xizang, NW Yunnan [N India].