42 OEOl.OOK'Al, SUKVEY OK CANADA. 



<i8\ {^/liihiiiilsoii.) lji»ml()ii niitl <>ii llio sands at Sarnia, On(. (^/iunjess.) 

 At tlu> Wliii-ljKxil, Xiaiiara l-'alls. {/iuchan.) AlMindaiil on Poitil Poloc, 

 Ijako Ki-io ; li-oiii the Saull Sle. Mario to Pic Kivor. Lake Siiperioi-; 

 Lake of the Woods. NrcTiOod's Lake, B. C. (^Mdi'otin.) 



(13H.) A. petraea, l-mi. Rdck-crc-^s. 



Cockl»urii Island. ]>aki' Huron; York I'Vctory. ( //. /><'//.) Crevices 

 of I'ot'ks altout five miles nortli ol' Mieliii)ieot.in llaihoi-, Lake Superior. 

 (.l/(/.'()i//i.) lltasyoiK'O liiver. B. C. {Pawsoii.) Throii^liout Canada, 

 oxtendini:; westward to the lioeky .Mountains, Jjat. 5r)'^-r)()°, and to the 

 islands ol" the Polar Sea. (^/looker /•'/. /., 42.) Creonland. {Jlook. 

 An-t. PI.) 



(L34.) A. petraea, var. ambigua, Regel. 



,1. ,imhl(/u<i, DC. Hook. Fl. I., 42. 

 Sandy and grass}' places on the shores of the islaiul ol' Ounalashka. 

 (Chamisso.) In grassy places by brook sides near Yale, B. C, May 

 IGth, 1875. It is desirable to obtain this in liuit, as there is some 

 uncertainty about the position of the species. 



(135.) A. hirsuta, Scop. Hairy Eock-cress. 



Turritis onila. Pursh, 438. 



A. sagitlala, DC. Buchan in Hamilton List. 12. 



A. rapcstrh, Nutt. Tnrr. &. Grray Fl. I., 81. 



'rnrnti.<< paluld, Fl. Bourgeau, 203 in i)art. 



A. Gcnirdi, var. horcaUs. ]\Iacoun's Cat., 13(5. 



Mel Eiver, Eestigouche ; on rocks, Portland, N.H. {Fowler's Cat.) 

 Collected in Madawaska, N.B. (-flaij.) Common on river banks and 

 amongst rocks from Gasp^ to the Pacific, and north to Lat. (58°. Sitka 

 and Ounalashka. {Roth. Alask.) 



(136.) A. Holboellii, Hornem. 



Turritis patvla, Graham. Hook. Fl. I., 40. 



{?) Turritis mollis. Hook. Fl. I., 40. 



Slreptanllins angugtifnlius et virgatus, Nutt. Torr. & Gray, Fl. I., 7G. 



(.?) ArahiR iiparslflora, Nutt. Torr. & Gray Fl. I., 81. 



Very abundant in the spai-sely wooded country from Manitoba west- 

 ward, and through the valleys of the Eocky Mountains to British 

 Columbia, being abundant both at Spence's Bridge and in the neighbor- 

 hood of Victoria. A variety with very short stems and very hairy 

 root-leaves, occurs in the Bow Eiver Pass, also on the highest summits 

 of the Eocky Mountains about Lat. 55°, according to Drumraond. It 

 extends north to Lat. 68° and shores of the Arctic Sea, Long. 107°-100°. 

 {Hooher.) Greenland. {Hook. Arct. PI.) 



