99 



In the fifth edition (p. 133, 1867-1880) the distribution is 

 given as : " Rocky ledges of Onion River, at Colchester, Vermont. 

 Dr. Rohhins (1829): the station now obliterated." The type 

 locality is, as far as the writer has been able to ascertain, near 

 Burlington, but within the town of Colchester, several miles, 

 however, from the railroad station of the latter name. The 

 statement "now obliterated," however, was apparently then 

 premature, for the plant has been collected later than 1867 and 

 1880. 



In the sixth edition, the distribution given (p. 136, 1890) is 

 modified and reads simply: "Rocky ledges, Vt. " This would 

 indicate that other localities might have been found in the 

 meantime, but I can find no evidence to that effect. 



In the new Gray's Manual (p. 516, 1908) edited by Robinson 

 and Fernald, the distribution is again thus restricted: "Rocky 

 Ledges of the Winooski R., Vt. (station now extinct)." As 

 Onion River and the Winooski are the same, the distribution 

 given is identical with that in the fifth edition of Gray's Manual, 

 and was at this time evidently according to facts. 



This is in short the history of the plant as given in the several 

 editions of our oldest manual of the Northeastern United States. 

 Let us, however, see what light other publications show on the 

 subject. 



In Wood's Classbook (p. 229) at least between 1851 and 1856, 

 the distribution is copied from the first edition of Gray's Manual. 

 In the later editions (p. 318) from 1863-1881, it was given 

 as: "Ledges by rivers and lakes, northern Vt., rare," and in 

 the Botanist and Florist (p. 94, 1889) as "Rocky shores, Vt." 

 In all cases very indefinite. 



In Archives of Science for Jan.-Apr., 1873, Perkins also adds 

 to the distribution: "It has also been found by Mr. C. C. 

 Frost on the Willoughby Mountain, &c." These specimens 

 belong to A. Blakei. 



In Perkins' Catalogue of the Flora of Vermont (p. 19, 1888) 

 I find: "Near Burlington; also Hartland, and near Hanover, 

 N. H." The last two localities refer to A. Jesup-i. 



In Britton & Brown's Illustrated Flora, first edition (2 : 304, 

 1897), the authors gave the distribution as Vermont and 

 New Hampshire, but they included in it also A. Jesupi and 

 probably yl. Blakei. Dr. Britton in his Manual, in both editions 



