rjl »iKOI,(1<ll('AK SUK\ KV t>l' <'ANAI»A. 



154. CLEDITISCHIA, Linn. (HONEY LOCUST.) 



(567.) C. triacanthos, Liim. 'riiroo-thoruod Acjiciu. 



This sjHH'ios is c'oinmoii in fultivjition tlirou^hout Ontario, Jiiid is 

 quite IwuhIn. Ill ilir ^miuui'i- ol' 1882 minioroiis trooH ol it wore found 

 growiiii^ on the saiul diiiu-s of IVdoo Point. The seed had probably 

 drilled aeross tlie hdco Ironi Ohio, as sand is not (he true habitat of 

 lliis tree. 



XXXII. liO.SACEyE. Eose Family. 



155. PRUNUS, Tourn. (PLUM. CHERRY.) 



(568.) P. Americana, Marshall, Wild Plum. 



P. nigra, Ait. I'ursli, 331. 



Cerasus nigra, Ix)isel. Hook. Fl. I., 167. 



Common in thiekets from Montreal westward to Eed Eivci- and the 

 Assiniboine, about the 100° meridian. 



Var. mollis, Ton-. & Gray, Fl. L, 407. 



? P. Canadensis, Linn. Pureh, 330. 

 P. hicmalis, Miclix. Fl. I., 284. 

 P. mollis, Torn, Fl. U.S., 470. 

 Cerasus hicmalis, Seringo. Hook. Fl. I., 108. 



La Grand ChaudiOre [Chaudiere Falls, Ottawa]. (?) (Piirsh.) This 

 is the black-fruited variety of our wild plum, and is to be looked for 

 throughout Ontario. It is probable we have two species in our terri- 

 tory. 

 (569.) P. maritima, Wang. Beach Plum. 



P. s})harocarpa, Michx. Fl. I., 284. 

 P. j^ubescens, Pursh, 331. 



I introduce this species on the authority of L'Abbe Ovide Brunet, 

 who quotes Pursh and the Hon. William Shepherd as his authorities. 

 Borders of the Ottawa (?). (Ptw.s/t.) It may be looked for on the 

 Island of Grand Manan and at St. Stephen, New Bi-unswick. 



(570.) P. pumila, Linn. Sand, or Dwarf Cherry. 



Cerasus pumila , Michx. Hook. Fl. I., 1G7. 



P. dqjressa, Pursh, 332. 



Cerasus depressa, Seringe- Hook. Fl. I., IfiS. 



Sand beaches and sand dunes and plains. St. John Kiver, and along 



