TAB. LVII. 
LlNDSiEA MEDIA, Br. 
Subelata glaberrima, frondibus subcoriaceis ovato-lanceolatis 
acuminatis bi-tripinnatis, pinnulis oblique rhombeis obovato- 
cuneatisve inferioribus sublobatis reliquis integris, sterilibus 
serratis, venis flabellatis ramis saepc anastomosantibus, soris 
dimidio superiore continuis, stipite elongato tetragono, 
rachibus tenui-alatis. 
Lindsaea media. Brown , Prodr. FI. Nov. Hoik p. 156. Hook. 
Gen. et Sp. Fil. 1 . p. 212. 
Hab. Tropical shores of New Holland, Brown. East Coast of 
Tropical New Holland, All. Cunningham . Fitzroy Islands, 
J. MacGillivray , Hsq., ( Voy . of the Rattlesnake , n. 256. /?.) 
A very rare and little known Lindscea , belonging to the 
same group or division as L. flahellulata , and L. tenera of 
Dryander, but very distinct as a species. Mr. MacGillivray 
has put us in possession of fine specimens, which have enabled 
us to give the accompanying figure. The primary pinna? are 
all very much acuminated, the ultimate ones extremely 
narrow, minute, and coadunate into a lobed point. The 
rachises are margined with a narrow wing. Of the fertile 
pinnules some have the flabellate dichotomous veins free, others 
anastomosing ; in the sterile ones I believe always free, with 
the apices of the veins clavate. Some authors who feel the 
propriety of retaining the genus Isoloma , would perhaps place 
it there. 
Fig. 1. Sterile pinnae with its free veins, f. 2. Fertile 
pinnae, with anastomosing veins : — magnified. 
