176 GEOLOGICAL SURVEY OP CANADA. 



205. NES/EA, Juss. (SWAMP LOOSESTRIFE.) 

 (823.) N. verticillata, HBK. 



Lythrum vertitittatum, Linn. Miclix. Fl. I., 281. 

 Decodon verticillatum, Ell. Hook. Fl. I., 219. 



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

 mon. Montreal, Q. (Maclagan.} Mouth of River St. Pierre, near 

 Montreal, Q. {Holmes.} 



XLI. LOASACE/E. LOASA FAMILY. 



206. MENTZELIA, Plumier. (BARTONIA.) 

 (824.) M. albicaulis, Dougl. 



Bartonia albicaulis, Hook. Fl. I., 222. 



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

 Nicola River, B.C. (Macoun.) Dry ground near Spence's Bridge, B.C. 

 (Hill.} 



(825.) M. IsevicauliS, Torr. & Gray. 



Bartonia Isevicaulis, Dougl. Hook. Fl. I., 221. 

 B. parmftora, Dougl. Hook. Fl. I., 221. 



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

 (Douglas.} Along the Similkameen River, B.C. (Dawson.} Macoun's 

 Cat., No. 710. 



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



Bartonia ornata, Pursh, 326. 

 Sheltered valley, Foot-hills of the West Butte, Lat. 49. (Dawson.} 



XLII. CURCURB1TACE/E. GOURD FAMILY. 



207. SICYOS, Linn. (STAR CUCUMBER.) 

 (827.) S. angulatus, Linn. 



Elaterium trifol'Mtum, Linn. Torr. & Gray, Fl. I., 697. 

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



