Class XXIV. Order I. 255 



Stipe smooth, of a shining black colour. Divisions or leafets 

 sessile, nearly round, crenate upon their outer edge, entire and 

 acute at base. Fructification in about five or six linear, di- 

 verging dots, which become roundish when old, Found among 

 high, shady rocks in Roxbury. Perennial. 



AsPLENIUM EBENEUM. Jilt. EboillJ Sple&llWOTt. 



Frond pinnate ; divisions lanceolate, somewhat 

 falcate, serrate, anricled at base ; stem quite smooth. 



Syn. ASPLENIUM YRICHOMANOIDES. Mich. 



Considerably larger than the last. Stipe slender, of a 

 smooth, polished, jet black. Divisions or leafets sessile, ob- 

 long, tapering to a point, sometimes a little curved, somewhat 

 serrate, furnished with an acute lobe on each side at base, which 

 gives them a sort of hastate form. Fructification in short, di- 

 verging lines, arranged in a double row on the back of the di- 

 visions. Dry woods and hills Perennial. 



ASPLENIUM TIJELYPTEROIDES. Mich. Silvery Spleemvort. 



Frond pinnate ; divisions pinnatifid ; segments 

 oval, round-obtuse, slightly denticulate ; fructifi- 

 cation in short, equal, oblique, parallel lines. Mich. 

 abr. 



This most beautiful fern grows to a pretty large size. Stipe 

 smooth, pale. The divisions of the frond are long and pinnati- 

 fid. Segments oblong, close, even, parallel, rounded at the end 

 and nearly entire. Fructification in two rows of short, oblique, 

 close, parallel lines, the opposite pairs forming nearly a right 

 angle. The involucres, when young, have a bright, silvery ap-r 

 pearance. Found by a brook in Roxbury. Perennial- 



