THE HAMILTON ASSOCIATION. 53 



49. Silphiiim perforatum, L., (Cup Plant) Rich soil along 

 streams. Islands in Detroit River {Madagan) In thickets along 

 margins of fields, Windsor, Ont. (Macoun) 



50. Heliopsis Icevis, Pers. Dry thickets. St. Catharines and 

 Amherstburgh, Ont. (Madagan) 



51. Helianthus parviflorus, Bernh. Thickets in alluvial soil in 

 Western Ontario (Go/die vide T. and G., Fl. N. Am.) 



52. Adinomeris squarrosa, Nutt. Islands in Detroit River 

 (Madagan) Roadsides and along banks of River Thames, Chatham, 

 Ont. (Macoun) 



53. Coreopsis trichosperma, Mx., var. tenuiloba, Gr. Islands in 

 Detroit River (Madagan) Edge of marsh at junction of Pt. Pelee 

 to main land (J. M. Macoun) Border of marsh at Rondeau, Lake 

 Erie (Macoun) 



54. Coreopsis tripteris, L. Amherstburgh and islands in Detroit 

 River (Madagan) Around marshes and along the G. W. Railway, 

 near Windsor, Ont. (J. M. Macoun) 



55. Coreopsis verticillata, L. Moist places and margins of 

 swamps, Western Canada (Gray) On the beach near a marsh, a 

 little west of Rondeau, Lake Erie (Macoun) 



56. Dysodia chrysanthemoides, Lag. Rare. A railroad weed at 

 Fort Erie, Ont. (Day) 



57. Cacalia atriplicifolia, L., (Indian Plantain) Canada (Cleghorn 

 vide Hooker) Moist woodlands, Western Ontario ( Torrey and Gray) 



58. Krigia Virgmica, Willd. Sandy ground, Western Ontario 

 (Gray) 



59. Lactuca Florida?ia, Gsertn. Islands in Detroit River 

 (Madagan) 



60. Fraxinus quadrangulata, Mx., (Blue Ash) Pelee Island 

 (Macoun) Pt. Pelee, Ont. (Macoun and Burgess) 



61. Asclepias purpurascens, L., (Purple Milkweed) Amherst- 

 burgh and islands in the Detroit River (Madagan.) 



62. Sabbatia angularis, Pursh. Rich soil, Western Ontario 

 ( Gray) 



63. Gentiana Saponaria, L. Moist woods, Western Ontario 

 (Gray) Fort Erie, Ont. (Day) 



