20 
Ferns of British India and Ceylon. 
GENUS VII.— STRUTHIOPTERIS. {Willd.) 
{Struthios ostrich, the fronds like feathers of the bird.) 
Sori dorsal on the veins of the changed and contracted pinnae 
of the fertile frond, and quite concealed by the revolute margins ; 
indusium very thin hemispherical, very fugacious, or wanting ; caudex 
erect or creeping ; fronds stipitate, dimorphous, fertile ones pinnate ; 
pinnae torulose or flattish ; veins all free pinnate. (Differs from 
Onoclea in having free veins.) 
I. Struthiopteris ORiENl^ALis. {Hook.) Fronds ovatc-oblong, 
not attenuated at the base ; fertile ones oblong, contracted ; pinnae 
linear-oblong, flattened, two-edged, the broad refracted margins 
covering the whole back, dark brown, glossy, at length spreading, 
and torn at the margin. Hook. Syn. Fil. p. 46. Bedd. F. B. I. 
t. 171. 
Sikkim, elevation 900-1,200 feet, Khasya, Assam. 
(Also in Japan and Western China.) 
GENUS VIIL— WOODSIA. {Br.) 
(In honour of Joseph Wood, a British botanist.) 
Sori globose; indusium inferior, soft, membranaceous, calyciform, 
or more or less globose, and sometimes enclosing the sorus, at length 
opening at the top, the margin laciniate or fringed ; veins free, simple, 
or forked. Small herbaceous ferns, the stipes tufted, often jointed. 
I. WooDSiA HYPERBOREA. {Br.) Glabrxous, or with the stipes, 
rachis and costa beneath slightly hairy and scaly ; fronds 5 inches 
long by ^ inch broad, linear-lanceolate, pinnate ; pinnae cordate- 
ovate, pinnatifid, with few broadly obovate entire lobes, the lower 
ones distinct ; indusium smaller than the sorus, but fringed with long 
hairs which extend beyond it. Hook. Syjt. Fil. p. 46. Clarke, 
A 434- 
Kashmir, Sind Valley, elevation 8,000 feet ; collected only oy 
Mr. Levinge. 
(Also in Alpine and Arctic Europe and North Asia.) 
