ADDER'S-TONGUE FAMILY 115 



divisions stalked and pinnately decompound, — 

 the ultimate segments obliquely lanceolate and 

 minutely toothed, 



It grows in shady pastures and open woods, 

 and is rather common, although it and other 

 small forms of this genus have away of eluding 

 one's search for them. 



The Common Grape Fern can be found read- 

 ily after a very light snow has fallen in the fall, 

 as the bronzed fronds, which remain evergreen, 

 stand erect against the light background. Our 

 first knowledge of its being evergreen was when 

 a frond was thus discovered at Christmas time. 



The sterile portion does not usually appear 

 until July. When young this is folded in a pecu- 

 liar manner, but it spreads more with age, some- 

 times not until after fruiting. 



The fertile portion is taller and still later than 

 the sterile, stands erect, and is often thrice pin- 

 nate, with double rows of distinct, naked spo- 

 rangia. We have seen plants bearing three 

 separate stalks, with compound fruit clusters 

 on each, but such form is not common. It 

 matures in September and October. 



DISSECTED GRAPE FERN. 



Botrychium tcrnatum dissectum {B. dissectuni). 



Plant somewhat fleshy and from three to six 

 inches high. The sterile portion is triangular 



