Figs. 1,2,4,5. 
FIG. 
PLATE XLV. 
THYRSOPTERIS MICROPHYLLA, SP. NOV .----. .--------0- --------------00 ----=- 
1. Portion of a large primary pinna, or of the frond, slightly restored..---. Eeoees 
19. Upper ultimate pinna or pinnule magnified ........-.....---------- SSE CDSE 
1>. Portion of a lower ultimate pinna magnified . re smesiseieosoeenemese 
2. Upper part of a compound pinna, with the aimee Ane toflobest-o-----=-= 
29, Lower pinnule magnified .. ....---------- .--- ---------+ +--+ ---- -----+ +--+ +--+ 
. Several detached upper ultimate pinnw.-.....------------ 
. Pinnules magnified ..-....----..--. ------+ +--+ -+--2+ 222-2 2-22 e eee eee eee eee 
. Portion of a small upper ultimate pinna, with the piinules reduced to lobes. -. 
. Pinnules or lobes magnified ........----..---------------- ------ ---+ ---------- 
. THYRSOPTERIS ANGUSTIFOLIA, Sp. NOV - ..--- -------------- +--+ s--+ ee 2-22 eee 
. Upper part of a compound pinna or of the frond.......-.---.----------------- 
. Pinnule magnified ........2-. 22-2 ----- 0 2 eee ee eee ee eee wee ee eee eee aas6 
