$ DIDYMOCHLÆNEZÆ. 
* * Veins connivently anastomosing. 
MESOCHLZENA. R. Brown, Pl. Jav. Rar. 5. 
(Spheerostephanos. J. Smith ;—Polypodii, Sp. Wallich ;—Stegnogrammatis. Sp. Fee.) 
GEN. CHAR : Sori indusiate, oblong, parallel, oblique, the receptacles medial, crest formed, on the simple veins ; indusium 
membranaceous, rounded at the apex, truncate at the base, attached longitudinally along the middle of the sorus, the margins glandular, 
free ; veins simple, from a central costa, the lower or more opposite pairs angularly connivent-anastomosing (as in Nephrodium.) 
Fronds large herbaceous pinnato-pinnatifid hairy, rhizome short erect, sori often crowded and becoming confluent, the indusium 
then pushed up vertically between the spore cases. (Moore.) 
MESOCHLANA JAVANICA. (R. Br.) Caudex erect, stipes tufted, short ; ; fronds 2-3 feet long, 12-18 inches broad, لد‎ 
pinnate ; j pinna close, very numerous, spreading, dwindling down below to mere auricles, the largest 6-9 inches long, 4 inch broad, cut ` 
down halfway or more to the rachis into close linear-oblong lobes ; rachis and lower surface villose ; veins very close, pinnated, 12 or 
more on each side in a lobe ; sori small, close, ultimately confluent, Aspid, Bl. Mett. ; Nephrodium Javanicum, ZZ. = iv. p. 67., Fil. 
Ex. t. 61; ; Mesochlena, À. Br. MSS. ; Sphærostephanos, J. Sm. Syn. Fil. p. 248. | 
Hab. Malayan Peninsula and Islands.— Habit and venation of Eunephrodium, M. asplenioides, J. Smith, is a villose variety 
with narrower pinnæ than usual, with short oblong-deltoid lobes. 
PLATE No. CCOXLIV, 
