九龙对囊蕨 jiu long dui nang jue

Rhizomes erect or ascending, densely clothed with brown or dark brown, membranous, broadly lanceolate scales at apex, like stipe bases. Fronds caespitose; fertile fronds (30-)70-80 cm; stipe stramineous or brownish red, (5-)10-14(-20) cm, (2-)3-4 mm in diam., with rather dense, crispate, zigzag, thick multicellular hairs and narrow scales in lower part, upward gradually sparse; lamina pinnate-pinnatipartite, oblanceolate or oblong-lanceolate, (25-)50-60(-65) × (8-)12-15(-20) cm, pinnatifid and shortly acuminate at apex, gradually narrowed toward base; pinnae (15-)20 pairs, many lower pinnae gradually shortened; basal pinnae often 0.5-1 cm, subopposite; upper pinnae alternate; middle pinnae spreading or slightly ascending, narrowly lanceolate, (4-)8-10 × 1-2 cm, broadened to base, base subtruncate, apex long acuminate; pinna segments ca. 12 pairs, approximate, oblong, (3-)5-8 × 3-4(-5) mm, margin subentire, sometimes crenulate, apex obtuse-rounded. Veins visible on both surfaces, pinnate in segments, 5-7 pairs, simple. Lamina herbaceous when dried, rachis and costae abaxially with thick multicellular hairs. Sori oblong or lunate, sometimes J-shaped in distal parts of lamina and pinnae, 1.5-2 mm, 3-5 pairs per segment; indusia similar to sori, pale brown, margin slightly erose or shortly ciliate, persistent; spores bilateral, perispore surface with rather densely rugose-saccate or papillate processes.

Forests, wet places, rock crevices, mountain slopes; 900-2700 m. Anhui, Jiangxi, Sichuan, Taiwan, Zhejiang [C and S Japan].

Lower Taxa

• Deparia jiulungensis var. albosquamata (M. Kato) Z. R. Wang
• Deparia jiulungensis var. jiulungensis