PHYLLITIS SCOLOPENDEIUM, 



271 



HART'S-TONGUE SPLEENWORT, {one-eighth the 

 natural size). 



€\wndm. 



Genus. — Phyllitis. Lateral veins twice or thrice bifurcate, 

 free at the extremity : capsules in linear series upon the ante- 

 rior and posterior branches ; on the anterior directed towards 

 the apex of the frond, on the posterior towards its base, always 

 in pairs, that is, when the anterior branch of a lateral vein bears 

 a line of capsules, the posterior branch of the lateral vein next 



