THE FERN BULLETIN 



15 



Colonies of about thirty plants were found near Farley 

 and Platte City in Piatt County. On the whole, this 

 delicate little plant may be said to be rare, but abund- 

 ant locally. 



In addition to the ferns, Equisetum arvense, and 

 E. robustum are very abundant, the latter forming 

 "brakes" in places and furnishing the name rush creek 

 to several small streams. Along Grand and Chari- 

 ton Rivers, the country rock in mainly sandstone and a 

 decided change is seen in the fern flora. Asplenium 

 angitstifolium, Aspidium noveboracense, A. spinu- 

 losum intermedium, Athyrium thclypteroides, A. filix- 

 foemina, Osmnnda cinnamomea, Polystichum acrosti- 

 choides and the form incisum which are rare or want- 

 ing along the Missouri river are found, many of them 

 abundantly. The distribution as noted above seems 

 to correspond to the rainfall, this increasing toward 

 the east. 



Missouri Geological Survey. 



PTERIDOGRAPHIA. 



Fern Notes from New York. — In the July, 1910 

 Bulletin, E. J. Hill spoke of finding the Dicksonia 

 punctihbula in Genessee County, N. Y. In Ontario 

 County (which is nearly twenty-five miles from 

 Genesse County) I have found this fern in one locality. 

 It grows in a pasture situated between a piece of 

 woods and a tamarack swamp. I have searched for it 

 in other places but have never found another station 

 for it near here. At Canadice Lake, twenty miles 

 south of here, I found a few fronds last summer and 

 I also found the Woodwardia Virginica. I had looked 

 in several swamps for it and had decided it did not 

 grow around here but last summer I was in a swamp 



