A few other species which are regarded as more or less uncertain 

 are given with the authority upon which they rest and are marked 

 as doubtful. 



The genera are arranged substantially as given in Hooker and 

 Bentham's Genera Plantarum. The Polypetalae are named as in 

 Watson's Index to North American Botany, and the Gamopetalae 

 are arranged as in the Synoptical Flora, 2d ed. In some cases, as 

 indicated by foot notes, more recent revisions of some of the genera 

 have been followed, as has Dr. Vasey's Grasses of the United 

 States for Graminese and Bailey's Synopsis or North American 

 Carices, {Proc. Am. Acad. Vol. XXII, pp. 59-151,) for the genus 

 Carex.* In all cases in which the name given in Gray's Manual has 

 been changed, the old name follows in parenthesis. Aside from 

 very important assistance rendered directly by individuals, as indi- 

 cated on a following page, the materials chiefly used in the prepara- 

 tion of this list are Oakes' Catalogue of Plants, published in 1842 

 in Thompson's Vermont ; Prof. J. Torrey's continuation of the same 

 list, published in 1853, in the Appendix to Thompson's Vermont ; a 

 brief manuscript list of plants found in Southern Vermont, pre- 

 pared not long before his death by Mr. C C. Frost, of Brattleboro; 

 and the herbarium of the University of Vermont collected largely 

 by Prof. Joseph Torrey. 



The flora of Vermont has long been attractive to botanists, and 

 from the time of Pursh, who collected about Mansfield and else- 

 where in 1807, to the present time the State has, from time to time, 

 been more or less fully explored. Oakes tells us that the earliest 

 list which can be regarded as giving anything like a full account of 

 Vermont plants as then known, is that of Dr. E. James, which con- 

 tains 569 species, mostly from the immediate vicinity of Middlebury. 

 Dr. James prepared this hst, as President E. Brainerd tells me, in 

 his earlier manhood and before he had acquired the botanical skill 

 to which he afterwards attained, and, although of great value, it 

 nevertheless must be used with care, as it contains undoubted 

 errors. This list was published in Hall's Statistical Account of 

 THE Town of Middlebury. During the year 1820, Dr. J. W. Bobbins, 

 of Uxbridge, Mass., made several expeditions through portions of 

 the State, and collected many species of plants. In 1831, John 

 Carey moved to Bellows Falls, and for some years after studied the 

 botany of Vermont very diligently. While in college at Burlington, 

 1835-1839, W. F. Macrae — and about the same time, as well as later, 

 — Prof. Edward Tuckerman, of Amherst, Mass., added much to 

 the knowledge of the botany of the State by their explorations. 

 Mr. William Oakes, of Ipswich, Mass., whose list has been men- 

 tioned, brought together in that work many of the results of the 

 labors of those named, as well as his own. Later, Prof. Torrey 

 at Burlington, and Mr. Frost at Brattleboro, continued the in- 

 vestigation of our flora while, during the last ten years, undoubt- 

 edly the most thorough scrutiny of many portions of Vermont 



♦See also list of corrections, Torrey Bulletin, XII, p 261. 



