xxxii Edward Neivman on British Ferns. 



Genus. — Botrychium, Sivartz. 



Frond produced annually ivithin the base of the fertile 

 frond of the preceding year: exterior or barren branch va- 

 riously divided ; interior or capsuliferous branch also much 

 divided : capsules spherical, sessile, crowded. 



Botrychium lunaria. 



Osmunda lunaria, Linn. Sp. PI. 1519 ; Light/. Fl. Scot. 652; 



Huds. Fl Ang. 449 ; Bolt. Fil. Brit. 4, t. 4 ; With. 



Arr. 762 ; Sm. E. B. 318. 

 Botrychium lunaria, Sm. E. F. iv. 328 ; Mack. Fl. Hib. 



346; Newm. N. A. 30, F. 337; Hook, and Am. 578; 



Bah. 417. 



Root stout, spreading, sparingly branched ; stipes erect ; 

 fertile branch of the frond a racemose panicle, the barren 

 branch pinnate ; pinnae three to seven j)airs, flabelliform, 

 with crenate margins. 



A dwarf plant. Heaths, rather local. 



Genus. — Ophioglossum, Linneus. 



Frond produced annually exterior to the base of the last 

 year's frond: exterior or barren branch a simple undivided 

 spatlie ; interior or fertile branch a simple, erect, stalked, 

 pointed spike, in the substance of which two parallel series 

 of large spherical capsules are embedded; these open by a 

 transverse fissure, giving the spike a serrated appearance. 



Ophioglossum vulgatum. 



Ophioglossum vulgatum, Linn. Sp. PI. 1518; Light/. Flor. 

 Scot. 651 ; Huds. Flor. Ang. 449 ; Bolt. Fil. Brit. 2, t. 

 3; With. Arr. 761; Sm. E.F.iy. 330, E. B. 108; 

 Mack. Fl. Hih. 346 ; Newm. N. A. 30, F. 349; Hook, 

 and Am. 578 ; Bab. 417. 

 • ' Stipes erect ; fertile branch of the frond an erect, club- 



shaped, pointed spike ; the barren branch an entire ovato- 

 lanceolate leaf. 



A dwarf plant, growing on heaths and in meadows. 



m 



