152 Plants of Europe naturalized in the United States. 



53 Erysimum officinale. Westward, preceding cultivation, in great 



quantities. 



54 Sonchus oleraceus. Every where. 



b5 Cnicus lanceolalus. Far surpassing in quantity and dissemination 

 any native species of Cnicus. 



56 Carduus arvensis. Not fartlier south than New Jersey. 



57 Arctium Lappa. Every where. 



58 Chrysanthemum Icucanthemum. Rapidly advancing westward, 



where eight years ago it had not made its appearance. 



59 Anthemis cotula. Decidedly the most universal of our gregarious 



plants. In the west and south it precedes cultivation. 



60 AchilUea millefolium. Every where. 



61 Urtica urcns. Very generally spread. 



62 Urtica dioica. Do. do. 



63 Lithospcrmum arvense. Very generally. 



II. Plants hwi imriially spread. 



64 Fedia olitoria. Tennessee and Carolina, in some localities. 



0)5 Agrostis spicavcnti. New England and Carolina, in some locali- 

 ties. 



66 Arrhenatherum avenaceum. Tennessee and Carolina, do. 



67 Dactylis giomerata. New Eng. Tennes. Carol. do. 



65 Alopecurus pratensis. New England — not widely spread. 



69 Bromus mollis. Do. in northern localities. 



70 Lolium temulentum. New England and Tennessee. 



71 Setaria viridis. Here and there northwardly. 



72 vcrticillata. Do. 



73 italica. Do. 



74 Briza media. New England. 



75 Blitum capitatum, \ 



y^c I,;-, • , \ New England and New York. 



76 Biiium virgatum. > *= 



77 Gcdium verum. New England. 



88 Echium vulgare. Spread beyond the Susquehannah. 



79 Anagallis arvensis. Northwardly. 



80 Verbascum Lychnitis. About Philadelphia. 



81 Hyoscyamus niger. In the eastern states. 



82 Solatium dulcamara. Sparingly in the northern states. 



83 Bupleurum rotundifolium. Here and there in Carolina, occupying 



whole fields. 



84 Chenopodium urhicum. Northern states. 



85 ruhrum. New England and New York. 



86 — — glaucum. Do. 



