26 VIOLACE^. 



CISTACEM. 



HELIANTHEMUM, Toumefort. 

 H. scoparium, Nutt. Woody-based stems, slender: flowers yellow. Cent. & S. Cal. 



TIOLACE^. 



VIOLA, Linnaeus. 

 * Leaves all cordate and reni/orm. 



Stems erect or prostrate: leaves flat 5, 10, 11 



Stemless: flowers white or blue 1 2 



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



Flowers blue or violet and white 3 4 



Flowers yetlow 7 8 9 10 12 



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



Sterna a few inches to a foot high 6 12 



Stems short or none 13 14 15 



1. V. blanda, Willd. White flowers. Alpine in wet placus. • 



2. V. cucullata, Ait. Light blue to white petals, 5 to 8 lines long. 



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



4. v. CTxneata, 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 petals purple; lower light yellow. 



7. V. pedunculata, T. & G. Orange-yellow petals brown on the back. 



8. V. praemorsa, Dougl. A variable species heretofore known as V. aurea, KelL 

 Leaves ovate or narrower; crenate. 



9. V. Nuttallii, Pursh. 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. Sheltoniiy Terr. Narrower petals yellow, purple veined. 



POLYGALACEJ]. 



Side sepals petal oid, larger: petals 3 united with stamens, middle one hooded and 



beaked .' 1 



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



