Ferns of British India and Ceylon. 43 



Sjuth Indian forests, Ceylon, Birma, Eastern Bengal. 

 (Also in the tropics throughout the world.) 



Var. /j limbatum. Fronds up to 8-10 inches long, by i|— 2 

 inches broad, flaccid, and larger and less cut than the type. Bedd. 

 F. B. I. t. 34S. 



Khasya Hills, 6,000 feet. 



15. Trichomanes birmanicum. [Bedd.) Rhizome thick, wiry, 

 wide-creeping, tomentose; stipe 1-3 inches long, winged throughout; 

 frond 2-7 inches long up to z\ inches broad, ovate, rachis winged ; 

 pirmce very compound, very minutely furfuraceous (under the lens), 

 the ultimate segments very narrow, \ line broad, a single costa to 

 each ultimate segment ; sori copious, supra-axillary, much exserted, 

 the mouth truncated. Bedd. F. B. I. Suppl. t. 349. 



Birma, common on the Mooleyit mountain, 5,000-6,000 

 feet. 



16. Trichomanes radicans. (Sw.) Rhizome wiry, wide- 

 creeping, tomentose ; stipe strong, up to 6 inches long, naked or 

 nearly so; fronds up to 12 inches long and 6 inches bread, 3-4-pin- 

 natifid, main rachis naked or winged sometimes to the base of the 

 stipe, lower pinna? 1-4 inches long, ovate-rhomboidal, ultimate 

 segments oblong, one-nerved, texure firm, membranaceous ; sori 

 lateral, 1-4 to a pinnule, the tube small, subcoriaceous, more or 

 less exserted, the mouth slightly lipped or altogether truncated, 

 receptacle slender, elongated. Swartz, Fl. Bid. Or. 1736. Hook. 

 Syn. Fil. p. 81. Bedd. F. B. I. t. 181. T. umbrosum, Wallich. 



Himalayas from Nepal to Bhotan, 2,000-7,000 feet ; common 

 in Khasya, 2,000 5.500 feet; Mergui. 



(Also scattered throughout warm, temperate regions of both 

 hemispheres, and known as the Irish fern.) 



Mr. Clarke says it often climbs to the height of 10 feet, and is 

 1-2 pinnate with finely divided fronds, in which state it is very 

 distinct ; but it also varies so as to be with difficulty distinguished 

 fr >m pyxidiferum on one hand and auriculatum on the other. 



