BLACK-THROATED BLUE WARBLER. 311 



The Canadian Columbine. 



Aquilegia canadensis, Willd. Sp. PL vol. ii. p. 1247. Pursk, Fl. Amer. Sept. vol. iL 

 p. 372 — PoLYANDRiA Pentagynia, Linn. Ranunculaceje, Juss. 



This species, which has the flowers of a bright red mixed with yellow, 

 and is characterised by having the horns of the nectaries or petals straight, 

 grows in the crevices of rocks, and in dry places near rivulets. 



