形態特徵

• Rhizome erect, 5-30 cm long, the apex clothed with thin brown entire scales c. 5 mm long and 2 mm wide. Stipes tufted, 10-15 cm long, bearing scattered scales (similar to those of the rhizome) almost throughout.
• Lamina lanceolate, 20-40 cm long, 8-10 cm wide, bipinnatifid or the basal acroscopic lobes of lower pinnae free; pinnae 18 pairs below the narrowly deltate, deeply lobed apex of the frond, short stalked, spreading or somewhat ascending except the lowest which are deflexed and usually somewhat reduced, strongly auriculate at the base on the acroscopic side; largest pinnae about 5 cm long and 0.9 cm wide above the base (the auricle at the base up to 0.9 cm long), the lower base narrowly cuneate, the margins above the auricle lobed about half-way to the costa, the lobes oblique, rounded, entire or somewhat toothed, the apex of the pinna acuminate; veins in the basal auricles and larger lobes pinnate, in the smaller lobes forked once or twice; rachis beneath bearing a few scales and also scattered erect short unicellular hairs; costae, costules and veins beneath bearing scattered multicellular glandular hairs; upper surfaces pubescent; texture herbaceous.
• Sori medial on the veins, the basal ones in the lower lobes round with reniform indusia, the more distal ones often hooked or broadly linear with indusia of corresponding shape; indusia serrated at their edge, broad (1.8 mm diameter in reniform sori), arched over the sporangia, also bearing glandular hairs.
• Spores large, mid- to darkish brown, perispore of retate type.

引證標本

Taitung Co. Hsiaokueihu 23° 06' N, 120° 48' E, 1600 m., Chen, J. F. 135 (TAIF); Wang, B. J. 16633 (TAIF); Leong, W. C. 2687 (HAST). Pingtung Co. Payuchih 22° 44' N, 120° 53' E, 1600 m. Chiou, W. L. 10470 (TAIF); Chinshuiyin 22° 25'N, 120° 44' E. 1600 m., Liu, Y. C. 2216, 2222 , 3209 (SYSU); 1500-1700 m., Lu, P. F. 7676 (TAIF); Tzeng, Y. H. 940 (TAIF); Wang, B. J. 17724 (TAIF); Wang, B. J. 17286, 18076, 17417 (HAST); Leong, W. C. 1464 (HAST); Hsu, C. C. et Kuoh s.n. (TAI).

參考文獻

• Yea-Chen Liu and C. R. Fraser-Jenkins, Taiwania 51(4): 293-297. 2006.