COMMON <'\\\IMAN* WILD ri.AXTS. 



l/i< jirsf oiH'x on, xhort <m<l munfincd petiole*. Side-petals bearded. 

 Dry hill-sides and old pastures. 



* * Leafy-stemmed Violets. 

 *- Flowers yellow. 



6. V. pubes'cens, Ait. (DowNY YELLOW V.) riant downy. 

 Leaves broadly cordate, coarsely serrate ; stipules large, dentate. 

 Lower petals veined with purple. Spur very short. Rich woods. 



-- -*- Flowers not yellow. 



7. V. Canadensis, L. (CANADA VIOLET.) Tall, often a foot 

 high. Leaves large, cordate, serrate-pointed. Petals white 

 inside, purplish outside. Spur very short. Flowering all 

 summer. 



8. V. cani'na, L., var. sylvestris, Regel. (Doa V.) Low, 

 spreading by runners. Leaves broadly cordate or reniform, with 

 fr'nxji'il -toothed stipules. Spur cylindrical, half as long as the 

 petals, which are pale purple. Wet places. 



9. V. Stria'ta, Ait. (?ALE V.) Stem angular, 6-10 inches 

 high. Leaves cordate, finely serrate ; stipules fringed-toothed. 

 Spur thickish, much shorter than the cream-coloured or irhite 

 petals. Low grounds. 



10. V. rostra'ta, Pursh. (LONG-SPURRED V.) Distinguished 

 at once by its extremely long straight spur. Petals violet- 

 coloured. 



ORDER XIII. CISTA'CE^E. (RocK-RosE FAMILY.) 



Herbs or low shrubs, with simple entire leaves and regular 

 polyandrous flowers. Calyx persistent, usually of 3 large and "2 

 smaller sepals. Petals 5 or 3, convolute in the bud. Stamens 

 3-20. Pod 1 -celled, 3-valved. Seeds 011 3 parietal projections. 



Synopsis of the Genera. 



1. Heliaii'themnm. I'ctals f>, fugacious. Style none. 

 J. Ilmlso'iiia. Petals 5, fugacious. Stylo lon^ ami slender. 

 3. Lech'ea. Petals 3, persistent. Style none. 



1. HELIAIV'THEMTJM, Tourn. RocK-RosE. 

 H. Canadense, Michx. (FROST- WKKI>.) Flowers of 2 sorts, 

 some solitary, with large yellow coroll;i and many stamens, the 



