28 ASPLENIUM 



NARROW-LEAVED SPLEENWORT: 



Asplenium angustifdlium. 

 {Athi/rium angusti folium.) 



Fronds 2-4 feet high, growing in clumps, thin 

 and delicate, simply pinnate; pinnae long, narrow, 

 tapering toward the tip; fertile fronds taller than 

 the sterile, and pinnae much narrower, appearing 

 in midsummer. 



Fruit dots elongated, numerous, in two rows, 

 opening on the side next the midvein. 



Found in moist woods from western Quebec and 

 New Hampshire, to ]\Iinnesota and southward. 



NOTES. 



