1864.] MICHAUX AND HIS JOURNEY IN CANADA. 331 



Nymplioea lutea, jB. Kalmiaiia, Linn. ; SperguJastruTn lanceola-- 

 turn, Miclix., ( = Stellaria horealis, Bigelow) ; Alnus crispa^ 

 Michx. ; J.. ^?a?6ca, Micbx. ; Lohdia Dortmanna, Linn. 



Lake St. John lies between latitude 48° 23' and 48° 42', and 

 between longitude 71° 29' and 72° 9', its greatest length being 

 sixteen leagues ; it is more than thirty leagues to the north of 

 Quebec. Michaux went entirely around it, and collected a great 

 number of plants ;* but in pursuance of his plan of studying the 

 trees, he also penetrated into the surrounding forests, which abound 

 in valuable timber-trees, details with regard to the nature and 

 distribution of which, will be given further on. 



It was on the 16th August that our botanist reached this lake, 

 but, delayed by an adverse wind, he spent the next day at the 

 mouth of Belle River, where he found Lycopus Vlrginicus, Linn. ; 

 Circma Canadensis, Linn. ; Bromiis Canadensis, Michx. ; Arundo 

 arenaria, Liai^. ; Galium Clai/tonii, Michx. ; G. asjjreUmn, 

 Michx.; Cornus alternifolia, Linn.; Polygonum amphihium, 

 Linn. ; Cerasus p)umila, Michx. ; Lathyrus palusiris, Linn. ; 

 Astragalus secundus,^ Michx. ; Hedysarum alpinum, Michx. ; 

 Aster amygdalinus, Michx. ; A. cordifoUus, Linn. ; Solidago 

 Jlexicaulis, Linn. ; aS'. aspera, Ait. ; Senecio pauper cuius, Michx. ; 

 Artemisia Canadensis, Michx. ; Lobelia Kalmii, Linn. ; Erio- 

 caidon j)ellucidum, Michx. ; Calla ijalustris, Linn. ; Solix cor- 

 data, Michx.; Ilex Canadensis, Michx.; Vitis riparia, Michx. 



Of the Yitis just named, Michaux has in his Herbarium the 

 following notes : '' Called beach- vine {vigne des hattures) by the 

 French voyageurs on the Ohio and Mississippi, because it grows 

 upon the rocks and sands which are exposed to the annual floods. 



This species is never found to the east of the Alleghany 



Mountains." 



* Flora Boreali-Americana, in lacu vel juxta lacum S. Joannis, vol. i, 

 fol. 240, vol. ii, fol. 205, 220, 225. 



t Prof. Asa Gray had for some time supposed the Astragalus secundus 

 of Michaux to be the Phaca aslragalina, D. C, (Astragalus alpinus, 

 Linn.,) when in 1861, I re-discovered the plant at Lake St. John, where 

 Michaux had first found it, and sent specimens of it to Prof. Gray, which 

 fully confirmed his opinion that it is but another form of A. alpinus, 

 Linn. But whence this difference of form? Last year, at the Island of 

 Orleans, where this species is abundant, I found the two varieties in the 

 same locality; and I was able to observe that when it grows on exposed 

 rocks the plant has the ordinary form of Phaca astragalina ; while on the 

 contrary, when sheltered by a growth of taller plants, it assumes the 

 slender and elongated form of the plant of Michaux. 



