168 CYSTOPTERIS 



BULBIFEROUS BLADDER FERN: 



Cystopteris bulbifera. 

 {Filia: bulbifera.) 



Fronds 1 to 3 feet long, widest at the base, 

 gradually tapering toward the tip, twice pinnate; 

 pinnules pinnatifid or toothed; stipes short, rachis 

 and pinnae often bearing bulblets beneath. 



Fruit dots small, roundish; indusium opening on 

 the side toward the tips of the lobes^ soon wither- 

 ing. 



Found on moist banks and rocks from Newfound- 

 land to North Carolina, Alabama and westward. 



NOTES. 



