1 8 Ferns of British India and Ceylon. 
GENUS v.— DIACALPE. {BL) 
{Dia and kalj)e, a vessel, in allusion to the cup-shaped indusium.) 
Sori globose, the receptacles small, scarcely elevated ; indusium 
inferior {i.e., below the sorus), globose, hard-membranaceous, entire, 
a length bursting very irregularly at the summit; capsules numerous, 
nearly sessile, ring broad, veinlets simple, free. 
1. DiACALPE ASPiDioiDES. {Bl.) A large compound fern ; stipc 
scaly, particularly near the base ; fronds tripinnate,submembranaceous, 
rachis of pinnae pubescent with adpressed scales ; pinnrR alternate 
or sub opposite, segments of pinnules oblong- cuneate, lobed, and 
decurrent, glabrous, or furnished with long weak scales ; veinlets 
not reaching the margin ; sori medial on the anterior lower vein- 
lats, involucre bursting irregularly, or sometimes into two regular 
lips. ' Bl. En. PI. Jav. Fil. 241. Hook. Sy?i. Fil. p. 45. Bedd. 
F.S.I.t.2^^. 
Nepal to Bhotan, Khasya, 4,000-6,000 feet. Ceylon, higher 
parts of central provinces. Tenasserim on Mooleyit 5,000-6,000 
feet. Tavoy. 
(Also in the Malay Islands.) 
2. DiACALPE FCENicuLACEA. {Hook. uuder PolysHcJium) 
Rhizome creeping; stipes tufted, 6-12 inches long, densely 
clothed below with lanceolate reddish-brown scales ; fronds 1-2 
feet long, 9-12 inches broad, deltoid-lanceolate, 4-5-pinnatifid, 
lower pinnule 6-8 inches long, 3-4 inches broad, pinnules sub- 
deltoid, 2-3 inches long, secondary pinnules cut down to the rachis, 
their lower divisions often again pinnatifid ; segments linear, very 
aoiite, subcoriaceous and very glossy, with a few scattered long 
scale-like hairs beneath ; indusium leathery, dark purple, spherical, 
attached by the point under its centre, not stalked, splitting irregu- 
larly from above. Clarke, p. 434. Hook. Syn. Fil. p. 256. Bedd. 
F. B. I. tab. 36, under Lastrea (indusium incorrect as to shape). 
Sikkim, 7,000-10,000 feet elevation, abundant at Buckeem ; 
Upper Ratong, 8,000-9,000 feet. 
