190 BOTRYCHIUM 



LITTLE GRAPE FERN: 



Botrychium simplex. 

 {B. tenebrosum.) 



This fern is one of the rarest and smallest of 

 the Botrychiums, usually less than 3 inches high. 

 The sterile segment is short-stemmed, joined to the 

 main stalk anj^where from near the base to the 

 summit. It is thickish, roundish or 3 to 7 lobed, 

 the lobes roundish, scarcely toothed; veins all fork- 

 ing from the base. The fertile spike rises above 

 the sterile and may be simple or compound. 



Found in moist woods or open places from Nova 

 Scotia to Marjdand, Ontario, Minnesota and the 

 Rocky Mountains; rare. 



NOTES. 



