Ferns of British India and Ceylon 
43 
S juth Indian forests, Ceylon, Birma, Eastern Bengal. 
(Also in the tropics throughout the world.) 
Var. /3 LiMBATUM. Fronds up to 8-10 inches long, by i|-2 
inches broad, flaccid, and larger and less cut than the type. Bedd. 
R B. Lt 348. 
Khasya HUls, 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 inches broad, ovate, rachis winged; 
pinnae 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. Siippl. t. 349. 
Birma, common on the Mooleyit mountain, 5,000-6,000 
feet. 
16. Trichomanes radicans. {Siv.) 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 pinnae 1-4 inches long, ovate-rhomboidal, ultimate 
segments oblong, one-nerved, tex'ure 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. Siuartz^ Fl. Bid. Or. 1736. Hook. 
Syn. Fil. p. 81. Bedd. F. B. I. t. 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 
from pyxidiferum on one hand and auriculatum on the other. 
