294 
DIPLAZIUM. 
DIPLAZIUM ASSIMILE (Endl.) ; stipes 14 to 2 feet long, fronds glabrous, deltoid, membranceous flaccid, tripinnate, L 
primary pinnz nearly opposite towards the base of the frond, alternate nearer the apex, lower ones up to 12-15 inches long by 6 inches x 
broad, secondary pinne 2 to 34 inches long by 4 to 14 inch broad, gradually acuminated, tertiary pinn a little more than 4 an inch long : 
by + inch broad, lower one subsessile upper decurrent, almost a parallelogram in shape with a broad rounded apex, divided 3 or 2-3rds of E 
the way to the costa into about 5 segments on each side, segments slightly falcate entire or generally with one toothlet on the upper - 
margin and rarely one on the lower, veins forked or pinnate, double sori numerous, involucre elongated membranaceous not breaking 7 
but سس‎ that of Asplenium and Diplazium ;—Asplenium assimile;— Znd. Fl. Norf. 10—Moore Ind. Fil. p. 114 A. assimile, E 
Presl. 
^. This species has been included by Sir W. Hooker in his Species Filicum under Athyrium Audire Brack (which is united E 
with umbrosum J. Sm. by Mr. Baker) it however has a quite different involucre to the South Indian species figured under that name at a 
Pl. CLVIIT. Ferns of S. India, and it is more flaccid and delicate and is tripinnate (subquadripinnate) with the ultimate segments sub- 
entire, whereas A. Australe is bipinnate (subtripinnate) with ultimate pinnules much toothed, these latter differences however are not : 
. always constant, or much to be depended upon as a specific difference in large compound ferns of this sort, as young or even small 827 p. 
specimens may be bipinnate when larger specimens of the same species are tripinnate. 
The specimen figured is from Ceylon (Central Provinces.) (Col. Perad 1,347.) 
PLATE No. CCXCIV. 
