/O Ferns of British India and Ceylon. 



i. Stenoloma chinensis. (Swarlz.) Rhizome stout, densely 

 fibrillose ; stipes strong, erect, polished, naked, dark brown, 6-12 

 inches long; fronds 12-18 inches long, 6-9 inches broad, ovate, 

 4-pinnatifid ; lower pinna? ovate- lanceolate, 4-6 inches long, 2-3 

 inches broad; pinnules lanceolate, their segments cut down to the 

 rachis below, with toothed cuneate lobes, i-i| lines across at the 

 apex ; texture subcoriaceous, both surfaces naked, the upper 

 thining ; sori terminal, usually solitary, ofcen rather broader than 

 deep. Swartz Syn. Fil. 133 (under Davallia) Davallia tenuifolia, 

 Hook. Syn. Fil. p. 102. Bedd. F. S. I. t. 16. 



Madras Presidency, Western mountains, 3,000-6,000 feet : 

 Himalayas, Kumaon to Bhotan, up to 1,000-4,000 feet; Khasya; 

 Ceylon ; Malay Peninsula. 



(Also in China, Japan, Polynesia, and the East African Islands.) 



GENUS XX.— CYSTOPTERIS. {Bernh.) 



(Cystos, a cyst, in allusion to the inflated indusium.) 



Fronds more or less compound, membranaceous ; sori globose, 

 placed on the back of the veins ; indusium membranaceous, subor- 

 bicular inserted by its broad base, under the sorus, which, at the 

 beginning it covers or partially covers like a hood ; veins free. 



1. Cystopteris fragilis. {Bernh.) Stipes 2-12 inches long; 

 fronds glabrous, weak, up to 1 foot, ovate-lanceolate, tripinnatifid ; 

 main rachis slightly winged above; pinnae lanceolate- deltoid ; pin- 

 nules oblong-rhomboidal, cut down to a broad central space into 

 bluntly or sharply-toothed segments; sori 2-12 to a pinnule. Hook, 

 Syn. Fil. 103. Bedd. F. B. I. t. 91. 



North West Himalayas, from Kashmir to Kumaon, 10,000- 

 15,000 feet elevation ; Sikkim. 



(Also in most parts of the world, in cold regions.) 



2. Cystopteris setosa. {Bedd.) Caudex erect; stipes 1 foot long, 

 sparsely covered with small flaccid subulate light-brown scales ; fronds 

 tufted 3-35 feet long, tripinnate, pinnas 8-10 inches long, lowest 



