^0 VIOLACE*. 



CISTACEiE. 



HELIANTHEMUM:, Toumefort. 

 H. 800X>aTium, Nutt Woody-ljased stems, slender: flowera yellow. Cent. & S. Cal 



TIOLACE^. 



VIOLA, Linnasus. 

 • Leaves aU cordate and reni/orm. 



Sterna erect or prostrate; leaves flat *- 6, 10, 11 



Stemleas: flowera white or blue 1, 2 



• * Leaves not all cordate or reni/orm: not lobed. 



Flowera blue or violet and white 3, 4 



Flowera yellow 7, 8, 9, 10, 12 



* * * Leaves lobed or divided. Mowers yellow or yellow and purple or blue. 



Stems a few inches to a foot high 6, 12 



Sterna short or none 13, 14, 15 



1. v. blauda, Willd. White flowers. Alpine in wet places. 



2. v. ououllata. Ait. Light blue to white petals, 5 to 8 lines long. 



3. V. canina, Linn. var. adunca Gr. Blue flowers, long spurred. 



4. V. ouaeata, Watson. Leaves tapering at base: flowers purple and white. 



5. v. ocellata, T. & G. Leaves coarsely crenate: flowers white, purple marked. 



6. V. Hallii, Gr. Gray-green: upper petala purple; lower light yellow. 



7. v. pedunctUata, T. & G. Orange-yellow petala brown on the back. 



8. V. prasmorsa, Dougl. A variable species heretofore known as V. aurea, Kell, 

 Leaves ovate or narrower, crenate. 



9. V. Nuttallii, Purah. Leaves oblong, margins entire. N. Cal., Or. 



10. V. sarmentosa, Dougl. Slender stems prostrate: leaves small. 



11. v. glabella, Nutt. Leaves large, bright green, thin, acute. 



12. V. lobata, Benth. Leaves pedately lobed or some entire. 

 Var. integrifolia, Watson. Leaves not lobed: coarsely toothed, 



13. V. chrysantha, Hooker. Leaves bipinnatifid: flowers like No. 7. 



14. V. Beckwithii, T. & G. Flowers purple or blue and yellow. 



15. V, Sheltonii, Torr. Narrower petala yellow, purple veined. 



polyoalacej:. 



Side sepals petaloid, larger: petals 3 united with stamens, middle one hooded uid 

 beaked 1 



Sepals and petals 5 each, unequal: stamens 4: fruit prickly , 2 



