CHARACTERS OF TRIBES AND GENERA. TP -— 
Fertile pinnæ linear, 6 to 8 inches long, broad rachiform. 
Primary veins evident, short. Receptacles compital, forming 
a large quadrate sorus, in two transverse, nearly confluent 
rows on each segment (acrostichoid). aun 
Type. Dryostachyum splendens, J. Sm. 
Ilust. Hook. and Bauer, Gen. Fil, t. 95; Moore Ind. 
Fil., p. 10, A. 
Osns.—As a genus, this is distinguished from Drynaria 
by the upper portion of the frond being contracted into 
long linear sessile pinne, bearing large quadrangular sori, 
The receptacle of each sorus may be viewed as formed by 
the confluence of four (normal) punctiform receptacles, 
brought together by the contraction of the fertile disk, 
` the primary veins, the sporangia thus forming two rows of. 
squares on each pinnw. According to Mr. Moore's classifi- 
= cation, the seemingly amorphous sori leads him to place 
this genus in Acrostichew, but he admits that in habit ane 
` aspect it resembles Drynaria. 
Sp, D. splendens, J. Sm. (Bedd. F. Brit. Ind. pl. 316); 
D. pilosum, J, Sm. 
Cumings, and latterly in Singapore. D. pilosum is a much 
smaller plant than D. splendens, and is specially distin- 
‘guished by the sporangia being pilose. 
E 94. AGLAOMORPHA, Schott. (1835). SE 
 Psygmium, Presl, 1836 ; Polypodium sp., Hook. Sp. Fil. 
~ Burculum thick. Fronds sessile (the base dilated), rigid, 
2 to 3 feet long, pinnatifid and sterile below; pinnate, 
contracted, and fertile above. Veins of sterile segment 
Costeform; veinlets and venules compound anastomosing, - 
forming a broad sporangiferous area between each two of T. 
Oss.—First discovered in the Island of Luzon, by ` 
