156 CHARACTERS OF TRIBES AND GENERA. 



OBS. Mr. Moore in his " Index Filicum," has made 

 A. ensiforme a type of a new genus which he names 

 Scoliosorus, of which he says, " This plant, having neither 

 netted veins nor netted sori, cannot belong to Antropliyum, 

 and is quite distinct from every other established genus." 

 This view is consequent on his having derived the cha- 

 racter of his genus from Hooker's figure in the " Icones 

 Plantarum," tab. 394, in which the sori are shown to be 

 interrupted, and with no veins visible. An examination 

 of herbarium specimens, however, shows that the fronds 

 are traversed by veins which form irregular hexagonoid 

 areoles. The sporangia are superficial and only partially 

 occupy the venules, forming linear forked generally 

 tortuous sori, their incomplete reticulation is not sufficient 

 character to warrant the adoption of Scoliosorus as a 

 separate genus. 



69. LOXOGRAMMA. Presl., in part. (1836). 



Gymnogramma sp., Hook. Sp. Fit. ; Grammitis, sp., 

 El. and Wall. 



Vernation sub-fasciculate, decumbent, rarely short, 

 sarmentose. Fronds simple lanceolate, 6 to 18 inches in 

 length, coriaceous. Veins internal, obscure, rarely evident, 

 uniformly reticulated, forming oblique elongated areoles. 

 Receptacles compital, linear, forming oblique, naked sori. 



Type. Grammitis lanceolata, Sw. 



Illust. Hook, and Bauer, Gen. Fil., t. 73, B ; Hook, and 

 Grev., Ic. PI., t. 53 ; Moore Ind. Fil., p. 51, B. 



OBS. Hitherto this genus has been placed in alliance 

 with Selliguea, but the vernation of Loxogramma being 

 adherent, brings it more in alliance with Antrophyum, 

 from which it differs in the sporangiferous receptacles 



