T94 



Ferns of British India and Ceylon. 



throughout and rather densely muricated; fronds 18-24 inches long, 

 by nearly as broad, with 4-5 pinnate pinnae, and 4-5 that are only 

 pinnatifid below the point on each side, the lowest 3 inches apart, 

 about 9 inches long, 4 inches broad ; pinnules sessile, 2-3 inches 

 long, f-f inch broad, the edge subentire, the point slightly toothed, 

 acuminated, the base rounded on both sides ; texture subcoriaceous; 

 both surfaces and rachis naked, the latter muricated in the lower 

 part ; veins in groups of 2-3 on a side, the groups usually joining 

 half-way across to the edge ; sori often \ inch long. Hook. Syn. Fil. 

 p. 245. Bedd. F. B. I. 332 (Callipteris). 



Ceylon, Matale East and Oodawella, 3,000 feet elevation. 



GENUS XLIV.— HEMIDICTYUM. {Presl.) 



(Hemi, half; diktyon, net ; outer portion only of veins reticulated.) 



As in Asplenium, but veins anastomosing obliquely only towards 

 the margin of the frond. 



1. Hemidictyum Ceterach. 

 (Linn.) Stipes densely tufted, 

 1-3 inches long, wiry, ebeneous, 

 chaffy ; fronds 4-6 inches long, 

 one inch or less broad, linear 

 pinnatifid or scarcely pinnate, 

 lobes alternate obtuse ■§— | 

 inch long, J— § inch broad, with 

 a rounded sinus between them ; 

 texture subcoriaceous, upper 

 surface naked, lower densely 

 coated with small reddish brown 

 ovate membranous scales; sori 

 linear oblique ; involucre rudi- 

 mentary. Asplenium Ceterach. 

 Linn. Sp. PL 1538. Hook. Syn- 

 Fil. p. 244. Ceterach officinarum 



N?95 

 HEMIDICTYUM CETERACH. (Linn.) 



(Willd.), Bedd. F. B. L t. 71. 



North west India, Kashmir, 3,000-6,000 feet elevation. 



