118 FERNS : BRITISH AND FOREIGN. 



43. GYMNOPTERIS, Bernh; Presl 



Vernation uniserial and sarmentose, or contiguous sub- 

 'fasciculate and decumbent. Fronds simple, lobed or pinnate, 



Genus 43. Portion of sterile frond, under side. No. 2. 



from 6 inches to 2-3 feet high. Primary veins costaeform; 

 venules compound anastomosing, with free variously directed 

 veinlets terminating in the areoles. Sporangia amorphous. 



1. G. quercifolia, Berrih.; Presl; Hook. Ic. PI. i. 905; 



Hook. Fil. Exot. t. 80. Acrostichum quercifolium, 

 Retz. ; Sw. ; Sclik. Fil. t. 3. Gymnopteris Nicnerii, 

 Hort Ceylon. 



2. G. nicotiansefolia, Presl ; Fee, Acrost. t. 46. Acrostichum 



nicotiansefolium, Sw. ; Hook. Gard. Ferns, t. 26. 

 West Indies. 



3. G. acuminata, Presl. Acrostichum acuminatum, Willd. ; 



(Plum. Fil. 1. 115). West Indies. 



4. G. aliena, Presl; Hook. Gen. Fil. t. 85. Acrostichum 



alienum, Sw. ; Plum. Fil. 1. 10. Tropical America. 



5. G. Gaboonense, /. Sm. Acrostichum (Gymnopteris) 



Gaboonense, Hook. Sp. Fil. 5, p. 270. Tropical 

 West Africa. 



