EUPTERIS AQUILINA. 



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COMMON BEAKES, {one-tenth the natural size). 



Genus. — Eupteris. Midvein distinct, lateral veins anasto- 

 mosing at the margin, forming a marginal vein : involucre 

 attached to the inner side of the marginal vein, linear, its mar- 

 gin split into capillary segments : capsules attached in a linear 

 series to the marginal vein, exterior to the involucre : epider- 

 mis prolonged, bleached, reflexed, split into capillary segments 

 and covering the capsules in the manner of an involucre. 



Species. — AquhjINA. Caudex a creeping rhizome: stipes 

 long, erect : frond deltoid, very compound. 



Sp0ttpfs, i^mi$, fe. 



Pteris aquilina, Linn. Sp. PI 1533 ; Light/. Fl. Scot. 657 ; 

 Huds. Fl. Ang. 451 ; Bolt. Fil. Brit. 16, t. 10; With. Arr. 

 765 ; Sm. E. F. iv. 318, E. B. 1679 ; Mack. Fl. Hib. 343; 



