FURTHER NOTES ON VARIATION IN 

 BOTRYCHIUM RAMOSUM. 



By Raynal Dodge. 

 On June 2nd of the present year I again visited the 

 Botrychium stations at Horse Hill, Kensington, N. 

 H., and at Newfound Hill in Hampton Falls. A de- 

 scription of these was given in The Fern Bulletin April 

 1910. I found that a great change had taken place 

 since my last visit in 1907. The young trees had grown 

 wonderfully and shaded the station, the farm house 

 had been abandoned, the hens had disappeared, and 

 Botrychium ramosum had again taken its place at the 

 foot of the hill. But instead of the many thousands 

 which formerly grew there, I only succeeded in find- 

 ing about forty plants, some of them however, quite 

 robust and well grown. On the same day, in company 

 with a friend, I made a thorough search for Botry- 

 chium simplex at Newfound Hill but failed to find a 

 single plant. 



It appears that all the forms in the genus Botry- 

 chium increase in numbers very slowly and that the 

 individual plants require many years to attain their 

 full development, but if the station for Botrychium 

 ramosum on Horse Hill escapes damage by fire or ma- 

 rauding hens I think that within twenty years someone 

 perhaps now younger than I, may find a large colony 

 of Botrychium simplex at the old station on Newfound 

 Hill. Several of my young friends have undertaken 

 if possible to make a search. 



Perhaps some of the readers of The Fern Bulletin 

 know of localities where Botrychium ramosum and 

 B. simplex are to be found growing near each other. 

 If any such are known it seems that further investiga- 

 tions relating to this subject might be made. Or per- 

 haps it would be enlightening of spores of B. ramosum 



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