Society ; and, in addition, we have consulted the herbaria of Mt. Hol- 

 yoke and Amherst Colleges, and the Knowlton herbarium of the 

 Massachusetts Agricultural College. The mosses, liverworts, lichens, 

 fungi and Characeae have been purposely omitted from this hst. 

 The list of hchens in Prof. Tuckerman's catalogue is one of the most 

 complete and authentic published, but the list of fungi, Characeae, 

 etc., contributed by Mr. Frost is of little value as it stands today, since 

 much progress has been made in the study of these groups since his 

 time. 



This list would possess much less value were it not for the work of 

 my predecessors, and frequent reference has been made to Pres. Ed- 

 ward Hitchcock', Prof. Edward Tuckerman^, Prof. H. G. Jesup', Col. 

 W. S. Clark'', Dr. N. A. Cobb and others, who have contributed to 

 the previous lists of this region. 



I have endeavored to difiEerentiate between indigenous (native), nat- 

 uralized, and adventive species (introduced but not permanently estab- 

 lished), by putting the naturalized species in capitals and the adven- 

 tive in italics, although there may be some errors in judgment as to 

 which are adventive and which naturalized in our range. 



The nomenclature and arrangement of families, etc., follows Gray's 

 Manual, seventh edition, although we have in some instances referred 

 to Britton & Brown's North American Flora, and Prof. L. H. Bailey's 

 Cyclopedia of American Horticulture. 



This list contains in all 1 190 native and 303 naturahzed and adven- 

 tive species, a total of 1493. 



George Edward Stone. 



Amherst, Mass., Feb. 15, 1913. 



1 Edward Hitchcock, A. Jl., D. D., LL. D., 1793— 1864. Professor Chemistry 

 and Natural History Amherst College, 1825 — 1845. President, 1845 — 1854. State 

 Geologist, 1830 — 1864. Emeritus Professor Geology Amherst College, until 1864. 

 Pioneer in American geological research. 



2 Edward Tuckerman, B. A., M.A., LL.B., LL.D., 1817— 18S6. Lecturer and 

 Professor Oriental History Amherst College, 1854 — 1873. Professor Botany, 1858 — 

 1886. Pioneer in American lichenology. 



3 Henry Griswold Jesup, M. A., 1826 — 1903. Professor Botany Dartmouth 

 College, 1877— 1S99. 



■1 William Smith Clark, M. A., Ph.D., LL.D., 1825— 1886. Professor Chemis- 

 try, Botany and Zoology Amherst College. 1852— 1867. Colonel Civil War, 1862. 

 President and Professor Botany and Horticulture, Mass. Agr. College, 1867—1879. 



