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1. POLAIVIS'IA, Raf. POLANISIA. 



The only species in Canada is 



P. grave'olens, Raf. A strong-scented herb, with a viscid, 

 hairy stem. Leaflets 3. Flowers in terminal racemes. Sepals 4. 

 Petals 4, yellowish-white, nan-owed below into long claws. 

 Stamens 8-12, exserted. Pod glandular-pubescent, 2 inches long, 

 linear. Shore of Lake Ontario, Hamilton to Niagara. 



ORDER XII. VIOLA'CE^. (VIOLET FAMILY.) 

 Herbs, with alternate stipulate leaves. Flowers irregular, the 

 lower of the 5 petals being spurred. Sepals 5, persistent. Sta- 

 mens 5, the anthers slightly united and surrounding the pistil.. 

 Fruit a 1 -celled pod, splitting into 3 valves. Seeds in 3 rows on 

 the walls of the ovary. The only genus represented in this 



country is 



VI'OLA, L. VIOLET. 



* Stemless Violets ; leaves and scapes all from root-stocks. 

 - Flowers white. 



1. V. blanda, Willd. (SWEET WHITE V.) Lower petal 

 streaked with purple. Leaves round, heart-shaped or reniform. 

 Petals beardless. Flower sweet-scented. Swamps and wet 

 meadows, in spring. 



2. V. renifo'lia, Gray. (KIDNEY-LEAVED V.) Leaves much 

 larger and more pubescent than those of the preceding. Dry 

 cedar swamps, and ravines in rich woods. 



- *- Flowers blue or purple. 



3. V. Selkirk!!, Pursh. (GREAT-SPURRED V. ) A small and 

 delicate plant, distinguished from the two following species by 

 the slender root-stock, and the very large spur, thickened at the 

 end. The pale violet petals, also, are beardless. Damp, shady 

 places. 



4. V, CUCUlla'ta, Ait. (COMMON BLUE VIOLET.) Leaves on 

 very long petioles, cordate or reniform, the sides folded inwards 

 when young. Lateral petals bearded. Spur short and thick. 

 Low grounds everywhere. 



5. V. sagitta'ta, Ait. (ARROW-LEAVED V.) Smoothish. 

 Leaves cordate, halberd -shaped, or sagittate, slightly toothed, 



