THE FERN BULLETIN 



13 



of the common grape fern (B. ternatam), the whole 

 plant being quite stout and fleshy. An illustration of 

 this form about natural size is given with this article. 



The common form of the plant is the one-called in- 

 cisum or possibly sub-compositum since these two are 



Forms of Botrychium Simplex. 



much alike. Incisum has an ovate sterile segment 

 incised into one or two pairs of lobes while subcom- 

 positiam has a greater number of lobes, the lowest of 

 which are petioled and somewhat remote from the 

 others. The variety fallax is like incisum except that 



