Portion of pinna of fertile Frond — upper side. 



DAVALLIA IMMERSA. 



Wallich. Hooker. 



PI, ATE XV. VOL. VIII. 



Leucostegia im mersa, 



Acropliorus immersus, 

 Ilumata immersa, 

 Cystopleris dimidiata, 



Presl. J. Smith. Hooker. 



Moore and Houlston. 



Moore. 



Mettenius. 



Decaisne. 



Davallia — In honour of Edmund Davall, a Swiss Botanist. 

 Immersa — Immersed, because the spore-cases are sunk within the frond. 



In the Section Leucostegia of Authors. 



A very beautiful delicate-looking peculiar pale green slender 

 Fern. 



A deciduous stove species. 



Native of the East Indies and Northern India, Nepal, Assam, 

 Mussoorie, Khasya, Kashmir, Sikkim, Moulmein, and Java. 



Imported into England in 1849, by Messrs. Rollisson, of 

 Tooting. 



The fronds glabrous, deltoid, bi-tripinnate, the pinnae alternate, 

 triangularly-elongate, pinnatifid, ovate-lanceolate; apices caudate. 

 Pinnules alternate, profoundly pinnatifid, oblong in shape, and 

 VOL. VIII. K 



