172 DAVALLIA. 



nothing that can be assimilated to an involucre. The stipes is from a span 

 to a foot long, glossy brown. Fronds about the same length. Pinnules 

 1 — 3 inches, rather remote, opaque (not glossy), membranaceous: veins 

 obscure, except when the frond is held between the eye and the light. 



50. D. Hookeriana, Wall. ; fronds (tufted ?) tall lanceolate 

 })inuate, pinnae subpetiolatc lanceolate from a broad hastate 

 base gradually acuminated submcmbranaceous duplicato-cre- 

 nated sparingly hairy on the costa and veins beneath, veins 

 parallel dichotomous, sori approximate forming a continued 

 line at the base of the crenatures of the margin, involucres 

 half-cup-shaped, stipes and rachis pubescenti-hirsute. (Tab. 

 XLVll. B.)—fVall. Cat. n. 2684. 



Hab. Mountains of Sylhet and Kamoun, Wallich. Assam, Major Jen- 

 kins. — Stipes a foot or more long, pubescent, at length glabrous. Kachis 

 hi rsuto- pubescent. Frond 2 feet and more long. Finnie spreading, 4 — 5 

 inches long, subpetiolate, hastate at the base, the upper lobe the longest 

 and sharpest. Crenatures of the margin, similar to what are described in 

 the two preceding species, extend beyond the sori ; but in no way and at 

 no stage of growth so covering the fructifications, as to constitute even a 

 spurious involucre. 



51. D. v//Zo.?a, Wall. ; fronds (tufted.?) tall broadly ovato- 

 lanceolate firm membranaceous, pinnae elongate lanceolate 

 subfalcate acuminate pinnatifido-lobate the acuminated api- 

 ces sen-ated pubescenti-villous beneath most so on the costa 

 and prominent veins unequally cuneate at the base and sub- 

 petiolate, lobes acute crenato-dentate, veins pinnated, sori 

 solitary in the axils of the smaller and upper lobes or sen-a- 

 tures and distant from the margin, marginal on the small 

 teeth of the larger lobes, involucres broad hali-cup-shaped 

 densely villous, rachis and stipes downy the latter at length 

 glabrous. (Tab. XLVITI. A.) — Wall. Cat. n. 244 [not Don). 

 D. scabra, Don. 



Hab. Nepal, Wallich. — A very handsome species. Stipes 1 — 2 feet long. 

 Frond about 1 foot, the inferior pinnae sometimes — 8 inches long, upper 

 pinnse sessile, but with a very unequal cuneate base, the uppermost ones 

 united into a pinnatilid acuminated point. 



52. D. calivsccms, Wall. ; fronds (tufted ?) tall lanceolate 

 firm membranaceous, pinna) elongate lanceolate subfalcate 

 acuminate piiniatifido-lobate the apices serrated every where 

 glabrous except the costa beneath which is pubescent, une- 

 qually cuneate at the base and distinctly petiolate, lobes acute 

 crenato-dentate, veins pinnated, sori along the toothed mar- 

 gin of the lobes, involucres shallow half-cup-shaped glabrous, 

 rachis and stipes slightly downy the latter at length glabrous. 

 (Tab. XLVIII. B.) — JVall. Cat. n. 2983. 



Hab. Kamoun, Wallich. Khasiya, Griffith. — This has much affinity 

 with the last, yet I think Dr. Wallich has rightly distinguished it, and ap- 



