56 



Ferns of British India and Ceylon. 



sori solitary submarginal ; rachis nodose above at the insertion of the 

 pinna? and ferrugineo-tomentose ; stipe not articulate, slightly rough 

 or glabrous, paleaceous below ; rhizome short-creeping. Presl. Tent. 

 Pter. t. 3. Hook. Syn. Ft I. p. 92. Bedd. F. B. I. f. 93. 



Himalayas, from Nepal to Bhotan, 3,000-7,000 feet, abundant 

 in Sikkim ; Khasya, 3,000-6,000 feet ; Malacca. 



(Also in Java.) 



This differs from the other Leucostegias in habit, and in the 

 stipe not being articulate, and should be kept distinct as a genus 

 under its original name of Acrophorus ; it is very like Diacalpe aspi- 

 dioides except in the indusium. 



GENUS XVL— PROSAPTIA. (Fresl.) 

 (Sori immersed in the margin of the frond.) 

 Fronds contiguous, linear-lanceolate, pectinate-pinnatind ; veins 



simple, free ; involucre a marginal 

 cyst formed of the substance of 

 the frond subcylindric. 



1. Prosaptia Emersoni. 

 (Fresl) Fronds tufted, sessile, 

 6-12 inches long, 1 inch broad, 

 linear-lanceolate, cut more than 

 half-way down to the rachis into 

 many linear-oblong, or at the lower 

 part triangular lobes ; texture coria- 

 ceous ; sori 1-6 round the edge of 

 the lobes. Hook. Syn. Fil. p. 94. 

 Bedd. F. S. I. t. 20. 



Anamallay Mountains, South 

 India, 3,000-4,000 feet ; Ceylon ; 

 Penang. 



(Also in Java, Borneo, and the 

 Philippine Islands.) 

 (Swariz.) Fronds tufted, sessile, or 



N°27. ^' ^ 



TROSAPTIA EMERSON I. (Presl.) 



2. Prosaptia contigua. 



nearly so, 12-18 inches long, i-ii inch broad, linear-lanceolate, cut 



