Pinna of fertile Frond— imder side. 



CYSTOPTERIS BULBIFERA. 

 Bernhardt. J. Smith. Kunze. Link. 



PLATE XXXVI. VOL. VI T. 



Aspidium huTbiferum, Swaktz. ScHKrHR. Willdenow. 



Polypodium " LiNNiEUS. 



Nephrodkim " Michaux. 



Cystopteris — Bladder Fern. Bulbifera — Bulb-bearing. 



Cystopteris hulhifera should be in every hardy collection, 

 flourishing without any care and attention, and rapidly spreading 

 itself both by its bulbs and seeds. It is really a very pretty 

 Fern, and one that eventually will be naturalized and found 

 wild throughout England. 



A hardy deciduous species. 



Native of North America — United States, Canada, Kentucky, 

 and Virginia. 



Introduced into the Royal Gardens, Kevv, by Mr. Tradescant, 

 in 1648. 



The fronds, which are bipinnate, are of a lanceolate-elongate 

 form, the pinnse being lanceolate, and the pinnules ovate- 

 oblong, profoundly pinnatifid, and having dentate segments. 

 The fronds bear a number of bulbs on their under surface, 

 which are easily detached, and speedily make plants. 





