Ite GEOLOGICAL SURVEY OF CANADA. 



205. NESVEA, Juss. (SWAMP LOOSESTRIFE.) 

 (823.) N. verticillata, HBK. 



Lythnun ixriicillaUim, Linn. Miohx. Fl. I., 281. 

 Dcaxlon rcrticillatum, Ell. Hook. Fl. I., 219. 



jMiiddy margins of lakes and ponds throughout Ontario ; quite com- 

 mon. Montreal, Q. (JIaclagan.) Mouth of Eiver St. Pierre, near 

 Montreal, Q. (Holmes.) 



XLI. LOASACE.E. Loasa Family. 



206. MENTZELIA, Plumier. (BARTONIA.) 

 (824.) M. albicaulis, Dongl. 



Bartonia albicmdif:, Hook. Fl. 1, 222. 



Along the Fraser and Thompson Eivers, from Boston Bar to the 

 Nicola Eiver, B.C. {Macoun.) Dry ground near Spence's Bridge, B.C. 

 {Hill.) 



(825.) M. laevicaulis, Ton-. & Gray. 



Barloiiia Ixvicavlis, Dougl. Hook. Fl. I., 221. 

 B. pari'ijhra, Dougl. Hook. Fl. I., 221. 



On the gravelly islands and rocky shores of the Upper Columbia. 

 (Douglas.) Along the Similkameen Eiver, B.C. (Dawson.) Macoun's 

 Cat., No. 710. 



(826.) M. ornata, Torr. & Gray. 

 Bartonia omaia, Pursh, 326. 



Sheltered valley, Foothills of the West Butte, Lat. -49°. (Dawson.) 



XLn. GUECUEBlTACE.a;. Gourd Family. 



207. SICYOS, Linn. (STAR CUCUMBER.) 

 (821.) S. angulatus, Linn. 



Elata-ium tn/oliatum, Linn. Torr. & Gray, Fl. I., 697. 

 Spontaneous in gardens, and around houses and barns, climbing over 



