6 



Vlrta cmcai, L. From Belleville! eastwards this species is not 

 uiiciiiiiiiioii. Dr. Hell cmi^itlers it iiitrodueed in (jiasp6 ; in 

 Ontario it is certainly iiuli^eiious. It appeirs aumiij.' the intro- 

 duced plants ol' Aj;assi/, and liuwell — (Ai^assiz's Lake Superior.) 

 PotiiitiUd i\orv(ijir'i, L., knnis one ol" tlioK! species wliicli are 

 frcijuently found on roadsides and in fields, and yet may not be 

 introduced. In its undoubtedly uative state it is common from 

 the northern coast of Lake Superior to Labrador and Newfound- 

 land. 



Pottntillii Ar<jt)it<(i, L., is ibund altundantly in old sandy 

 fields at Toronto, Port Colborne, Pieton and (ias[)e. At Swamp- 

 Bcott, near iJoston. 1 obtained it on the roadside iu sandy soil. 

 It is (juestionably native. 



AijriiiinniK Eitpntoi'm, L.. is fre(|uently met with on road-^^idos. 

 In Southern Africa it is a naturalized plant (D'lJrban.) Tlio 

 indigenous form is well distributed over both Ontario and 

 Qucbi'c. 



Gd/iinii Jpniiii', L. This plant, if it has not been overlooked, 

 has a limited di.-tribution. It occurs in the Erie district, and 

 ran;.ies thence to Mdnlre.il. I have only met with it in <i;ardens, 

 and Dr. Lawsoii, of Ilalii'.i.x, who has an extensive acquaintance 

 with tiie flora of these rroviiiees, informs me that his experience 

 is thiit the introduced form is not common exce])t in i^ardens, 



TitniXdfiini tJiiix-lnniis Desf. This is a plant of wide dif- 

 fusion, extendinjj; northward to the Arctic zone. Wherever met 

 with in the settleil parts of Ontario and Quebec, its liabit is that 

 of an introduced plant. 



Achillcd vullc/oHiiin, L.. is another extensively-diffused species, 

 which also ranges lo the Arctic zone. It largely freijuents road- 

 sides and waste fields. 



Xaiitliiiim stniiiiKiuim, L., occurs in the Erie district, and 

 thence eastward. Some forms of this species are indigenous in 

 the United States — (Gray's Manual.) 



Gnnpludlnni iiligiiKinitin. L. Most of the species of the genus 

 (Inaph ilium have a more or less introduced-like habit. Indi- 

 viduals of this species are freiiuent y met with on roadsides and 

 in fields. The r Mge of the plant extends over the two Provinces, 

 except iu the extreme West, where, however, it is to be looked 



for. 



Artemisia vulgaris, L., is a common roadside plant in eastern 

 Ontario and Quebec. Torrey and Gray (Flora N. Amer.) refer 



