AN ENUMERATION OF CULTIVATED FERNS. 



271 



fanning a distichous, synangeous spike, each cell opening 

 horizontally in two equal valves. 



Genus 155. — Plant natural size ; fertile spike enlarged. No. 3. 



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

 (Euophioglossum.) 



1. O. Lusitanicum, Linn.; Hook, et Oreo. Tc. Fil. t. 80 ; 



Idndl. and Moore's Brit. Ferns, t. 51 G; Sowerby's 

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

 folium, Hook. Brit. Ferns, t. 47. — South of Europe. 



2. O. pedunculosum, Besv.; Kunze, Fil. t. 29, /, 2. — 



NortL Amcricu. 



