Counties of Argenieuil and Ottawa, 127 



Aster longifolius ? Linn. On sand at the base of Silver Mountain ; 



F. 10th August. 

 " puniceus, Linn. Growing in dense clumps in swampy ground; 



F. 25th August. 

 " acuminatus, Michx. Common on rocks at Huckleberry Rapids 



and Silver Mountain , F. 9th August. 

 " nemoralis, Ait. In profusion on gneiss rocks on the shores 



of Trembling Lake ; F. 7th September. 

 Erigeron Canadense, Linn. Open fields amongst grass, Hamilton's 



Farm. 

 " Philadelphicum, Linn. Moist clay bank of the Rouge, Arun- 

 del ; F, 30th June. 

 *• strigosum, Muhl. On sand at the mouth of the Devil's River, 



and common at Hamilton's Farm ; F. 21st July. 

 Diplopappus umbellatus, Torrey and Gray. In great profusion on the 



sandy banks of the Rouge, and on the shores of lakes ; 



P. August. 

 Solidago latifolia, Linn. Common on sandy banks by the water side ; 



F. 12 th August. 

 " (undetermined). Abundant everywhere along the Rouge on 



rocks and sand. 

 " altissima, Linn. (Golden-rod.) Very common on rocks and 



sandy banks of the Rouge. 

 " nemoralis, Ait. Abundant on sandy banks of the Rouge. 

 " lanceolata, Linn. Abundant on sandy banks of the Rouge. 



* Achillea Millefolium, Linn. (Yarrow). Abundant on sandy banks 



of the Rouge ; F. 21st July. 



* Lucanthemum vulgare, Linn. In great abundance round clearings 



and on the banks of the Rouge. 



* Tanacetum vulgare, Linn. About settlements in Grenville and 



Wentworth. 



Gnaphalium polycephalum, Michx. Common in open places and very 

 abundant at Hamilton's Farm, amongst grass in the 

 fields. 



Antennaria plantaginifolia, Hook. On gneiss rocks. Huckleberry Ra- 

 pids, and on a small mountain near Silver Mountain. 



* Cirsium lanceolatum, Scop. About clearings at Bevin's Lake, and 



Hamilton's Farm. 

 " muticum, Michx. Swamp near Hamilton's Farm ; F. 2nd 

 September. 



* " arvense, Scop. (Canada Thistle). About clearings at Be- 



vin's Lake and Hamilton's Farm. 

 Hieracium Canadense, Michx. Common on rocks and sand ; F. 9th 



August. 

 Nabalus albus. Hook. Abundant on rocks and sand banks, in open 



places ; F. 19th August. 



* Taraxacum Dens-leonis, Desf. (Dandelion). Common near clear- 



ings and along portage paths. 



