Ferns of British India and Ceylon. 115 



2,000-2,500 feet elevation ; Ceylon, Dodawilla, Matele and Moo- 

 roowa forests, above 2,000 feet elevation. 



(Also in Borneo, Philippines and Society Islands.) 



15. Pteris longipes. (Don.) Fronds membranaceous, furnished 

 above with a few subulate scales on the rachis of the pinnse, and with 

 hairs on the rachis of the segments, ternately divided, or subpedately 

 divided into 5-7 segments, lateral divisions mukipinnate; pinnae short, 

 petiolate or subsessile lanceolate acuminate, deeply pinnatifid to 

 the apex, or with the apex long caudate, segments oblong obtuse 

 subtruncate, serrated at the sterile portions of the apex ; sori lateral 

 on the segments, never extending to the apex or base ; veins rather 

 remote, all forked, basal ones arising from the axil of the costule, 

 and extending to the margin much above the sinus. G. Don. Prod. 

 Fl. Kep. 15. Pteris pellucens, Agardh, Sp. Gen. Pter. 43. Hook. 

 Sp. Fil. ii. 191. Bedd. F. S. I. t. 32. (South Indian examples 

 are always ternately divided, but those from N. India have often 5, 

 rarely 7, pinnae.) 



All the western hills of the Madras Presidency, 2,000-5,000 feet 

 elevation; Ceylon; Birma; Sikkim, Bhotan; and Khasya 1,000-5,000 

 feet elevation. 



(Also Guinea coast and Guatemala.) 



§ Stipes distant from a long creeping rhizome, indusium double. 

 (Genus Pcesia and Omithopteris of authors.) 



16. Pteris aquilina. (Z.) Rhizome stout, creeping under- 

 ground; stipes about 1 foot long, strong, erect, naked ; fronds 2-6 feet 

 long, 1-2 feet broad, subdeltoid in outline, only the uppermost pinnae 

 simple, the next lanceolate cut down nearly or quite to the rachis 

 into short triangular or linear pinnules, the lowest long-stalked, 1 foot 

 or more long, with ample lanceolate pinnules which are cut down to 

 the rachis into numerous lanceolate segments, which are again fully 

 pinnate ; largest entire ultimate segments 1 inch long, 2 lines broad ; 

 texture thin or subcoriaceous; rachis and surfaces naked or pubescent; 

 veins close, conspicuous, often twice forked : involucre double, or the 



