Ferns of British India and Ceylon. 445 
prominent, furcate, free or anastomosing, veinlets copiously anasto- 
mosing, forming large oblong areole?, usually with free included 
simple or forked veinlets ; fronds dimorphous, the sterile sessile, 
oblique, reniform, round or elongated, the fertile dichotomously 
forked with stag-horn-like divisions, in texture and pubescence 
resembling Niphobolus ; articulate with the caudex. 
1. Platycerium GRANDE. {/. Sui.) Barren frouds vcry large, 
suborbicular, convex or the upper ones erect, deeply laciniatcd with 
spreading or inflexed divisions ; fertile fronds 4-6 feet long, pendent 
in pairs, the disk broad-cuneate, with the sorus against the upper 
edge, occupying the disk only, with an elongated dichotomously 
forked division beyond it at each corner ; both surfaces green and 
smooth. J^. Sm. in Hook, yourn. Bat. iii. /. 402. Hook. Syn. 
Fil. p. 425. Bedd. F. B. I. t. 326. There is only one soriferous 
patch to each frond. 
Singapore. 
(AlbO in Philippines and North Australia.) 
2. Platycerium Wallichii. {Hook.) Fronds ample, bifari- 
ous, at length glabrous ; sterile ones imbricated below, irregularly 
sinuate-lobate, above elongated, dilated deeply and much dichoto- 
mously pinnatifid, segments patent-inflexed ; fertile fronds geminate, 
very broadly flabellate-cuneate, twice dichotomous suddenly narrowed 
at the base, each primary division or segment bears a sorus on the 
disk (hence there are two sori on each frond), which is semicircular 
and very much produced in the sinus itself, the terminal segments 
beyond the soriferous disk are several times dichotomous and pendent, 
primary veins dichotomous, parallel elevated here and there, anasto- 
mosing into broad elongated areoles which are occupied by lesser 
ones with numerous free-branched included veinlets. Hook. Sp. Fil. 
v. 284. Acrostichum alcicorne. Wall. Cat. n. 19, {not Linn.) 
Bedd. F. B. I. t. 108. 
Malay Peninsula, Tenasserim. 
3. Platycerium biforme. {Bl) Fronds ample, bifarious, at 
