26 VIOLACE^ 



cistacej:. 



HELIANTHEMUM, Tournefort. 

 HL scoparium, Nutt. Woody-based stems, slender: flowers yellow. Cent. 8c S. Cal 



T^IOLACE^. 



VIOLA, Linnaeus. 

 • Leaves all cordate and reniform, 



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



Stemless: flowers white or blue 1, 2 



• * Leaves not all cordate or reniform: not lobtd. 



Flowers blue or violet and white 3, 4 



Flowers yellow 7, 8, 9, 10, 12 



* * • Leaves lobed or divided. Flotoera yellow or yellow and purple or blue. 



Stems a few inches to a foot high 6, 12 



Stems short or none 13, 14, 16 



1. V. blanda, Willd. White flowers. Alpine in wet places. 



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. cuneata, 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 F, aurta^ 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. cbxysantlia, Hooker. Leaves bipinnatifid: flowers like No. 7. 



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

 16. V. Sheltoniiy Torr. Narrower petals yellow, purple veined. 



POLYGALACE^. 



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

 beaked - 1 



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



