126 BOARD OF AGRICULTURE. 



A. Canadensis, Mx. — With the last. 



Tanacetum Iluronense, NuUall. — Plentiful in rocky soil, and very 

 thrifty. 



Vilfa cuspidata, Toy^rerj in Hooker's Flor. Bor. Am. — Not infrequent 

 along the shore of the main St. John. 

 Besides the foregoing species we also find in this district many 



which occur in other peculiar localities in New England ; for in- 

 stance, at the singular precipice at Willoughby Lake, or some cold 



maritime swamp. 



Astragalus Robbinsii, Gray. Fhaca, Oakes. — Very abundant on 

 the shores of the river St. John. 



Hedysarum boreale, NuU. — Quite common and flourishing through- 

 out the district. 



Primula Mistassinica, Michaux. — So abundant is this delicate plant 

 at some points along the River St. John, that the shore assumes 

 a faint red or purple tinge when viewed at a little distance. 



Solidago Virga-aurea, var. alpina, Bigelow. — With the last. 



Nabalus racemosus. Hooker. 



Tofieldia glutinosa, Willdenow. — Wet grounds along the river. 

 These plants occur on the shores of many tributaries of the upper 



St. John and in the neighboring woods. The whole region through 



which these plants are distributed is covered by a thick growth of 



coniferous trees, most of which are of good size, and are considered 



valuable for "tun timber" and "deal." 



Immediately south and east of the lower limit of this district we 

 come into a different vegetation. The St. John plants have entirely 

 disappeared, except along the river banks, to which they have been 

 floated by the spring freshets. One, perhaps two, of the composita? 

 arc detected high above the usual line of freshets, but it will be 

 remembered that each plumed seed of the species of this vast order 

 is wafted on its own wings far beyond the ordinary limits of the 

 dissemination of other plants. With this exception, no plants of the 

 St. John district were discovered outside the natural reach of 

 water communication. This second region, which we can distin- 

 guish by the appellation of Aroostook district, is characterized by 

 the occurrence of a different flora. Instead of conifers, we find a 

 prevalence of "hard-wood" trees. Maples, Beeches, Oaks and 

 AmeiitaccGe form the forests. Under such trees we see flourishing 

 Dicentras, Claytonias, Adlumia, Araliaquinqucfolia, Solidago odora; 



