1914] 



ROBERTS— PLANT SUCCESSIONS OF HOLYOKE RANGE 



433 



the region, and Miss Sarah 



J. Agard, of the botany department 



species 



nomenclature of the pteridophytes and sperma 

 the seventh edition of Gray's Manual. 





" 



Map. 



4, Nonotuck; 5, Titan's Pier; 6, Connecticut River. 



Mount Holyoke Range; 3, Holyoke Rang 



Topography and physiographic history 



The Holyoke Range is situated in the western c 

 Massachusetts in lat. 42 N., long. 7o°3o' W., in an ol 

 The range varies in elevation from 100 feet to 1200 



miles in length. 



by stream 



ness of sandstone, conglomerates, and shales with interbedded 

 lavas; the main sheet of which, and the one which caDs the ridges. 



