AN ENUMERATION Ofl CULTIVATED FEENS. 



271 



forming a distichous, synangeous spike, each cell opening 

 hoi*izontally in two equal valves. 



Genus 155. Plant natural size j fertile spike enlarged. No. 3. 



* Fronds erect, the sterile segments ovate or linear (Terrestrial). 

 (Euophioglossum.) 



1. O. Lusitanicum, Linn.; Hook, et Grev. Tc. Fit. t. 80 ; 



Lindl. and Moore 's Brit. Ferns, t. 51 C ; Sowerly's 

 Ferns, t. 47. Ophioglossum vulgatum, var. angusti- 

 foliuin, Hook. Brit. Ferns, t. 47. South of Europe. 



2. O. pedunculosum, Desv.; Kunze, Fil. t. 29, f. 2. 



North America. 



