THE FERN BULLETIN 



71 



list, however, without localities. Some marks are ap- 

 pended to names of plants, as 5\ for the southern part 

 of the state and N. for the northern, and as no letters 

 follow Dicksonia it may indicate a range throughout, 

 or lack of data for knowledge of the true range. 



Judging from the data above adduced there is an 

 area somewhat triangdlar in shape from which Dick- 

 sonia punctilobiila does not seem to have been reported 

 or in which it may not occur. The apex of this area 

 is in southwestern Ontario, perhaps near Lake On- 

 tario. The north line of the area tends westward 

 through northern Michigan and into Minnesota, the 

 south line along the southern side of Lake Erie and 

 into northern Indiana, thence southwestward across 

 the state into southern Illinois. It would be rash to 

 assert that this fern does not grow or will not be 

 found in this area, but if represented at all it is evi- 

 dently very rare and local. Southern Michigan, 

 northwestern Indiana, middle and northern Illinois, 

 and southern Wisconsin have been quite well worked 

 over by collectors and local students of their plants, 

 probably as carefully as most of those west of New 

 York and Pennsylvania whence it has been mentioned 

 as growing. Its place of frequency and abundance is 

 plainly in the east, or on the Atlantic slope. It would 

 be of interest to know if it is gradually spreading west- 

 ward, where climate and soil conditions can hardly be 

 unfavorable to its growth, or whether it has been over- 

 looked which would hardly seem to be the case with 

 so distinct and beautiful a fern. 



IV. Botrychium. 

 It is my practice when finding certain kinds of 

 Botrychium to take a specimen unless by so doing 

 there is danger of destroying a habitat. Reference 



