Cystopteris bulbifera 



Canada to Tennessee, on wet 

 rocks, preferring limestone. One 

 to three feet long, with light- 

 colored, somewhat brittle stalks. 



Fronds. Elongated, lance-shaped 

 from a broad base, often bearing be- 

 neath large, fleshy bulbs, usually 

 twice-pinnate; pinna lance-oblong, 

 pointed ; pinnules toothed or deeply 



lobed ; fruit-dots roundish, indusium short, 



hood-like, attached by a broad base on the side 



toward the midrib, early 



thrown back and withering 



so that the mature fruit-dots 



appear arched. 



The Bulblet Blad- 

 der Fern is never more 

 at home than when 

 it grows close to falling water, clinging to rocks 



dark and wet with spray. It seems to reflect 



194 



