AN ENUMERATION OP CULTIVATED FEENS. 265 



Receptacles medial. Sori oblong, linear, simple or forked, 

 naked, often confluent. 



Genus 149. Portion of fertile frond, under side. No. 1. 



* Fronds coriaceous, opaque. (Eutodea.) 



1. T. Africana, Willd. ; Sclik. ML t. 147 ; HooJc. Gen. Fil. 



t. 46 J5, /. 1 ; Hooh fil. Fl. Tasm. t. 168 ; Lowe's 

 Ferns, 8, t. 67. Acrostichum barbarum, Linn. Todea 

 barbara, Moore's Synop. T. rivularis, Sieb. ; Kunze, 

 Anal. t. 4. T. Australasica, A. Cunn. South Africa, 

 Australia, Tasmania. 



** Fronds membraneous. (Leptopteris.) 



2. T. hymenophylloides, Rich. Voy. d 1 Astrolabe, 1. 16 ; HooJc. 



Gen. Fil, t. 46 B, f. 7 ; Hoofc. Gard. Ferns, t. 54. 

 Leptopteris hymenophylloides, PresL Todea pellucida, 

 Carm. ; HooTs. Ic. PI. t. 8. New Zealand. 



3. T. superba, Colenso. Leptopteris superba, Hook. Ic. PI* 



t. 910. New Zealand. 



4. T. Fraseri, Hook, et Grev. Ic. Fil. t. 101. Leptopteris 



Praseri, Presl. New Holland. 



2. Exannulatce. 

 Sporangia coriaceous, opaque, destitute of a ring. 



" ORDER II. MAKATTIACE JE, Kaulf. 

 Sporangia dorsal, exannulate, opaque, horny, generally sessile, 

 distinct, or connate and forming synangia, opening by a pore or 

 longitudinal slit. 



