26 
VIOLACEX. 
CISTACER. 
HELIANTHEMUM, Tournefort. 
HL. scoparium, Nutt. Woody-based stems, slender: flowers yellow. Cent. & S. Cai 
VIOLACER. 
VIOLA, Linnzus, 
* Leaves all cordate and reniform. 
Stems erect or prostrate: leaves flat.......... MdibaK oes eee chnesssiessa 0, 10, 
Stemless: flowers white or blue..........-..ceceee eee eeee wine aleists wislg Sieis' shale gisrate 1,2 
* * Leaves not all cordate or reniform: not lobed. 
Flowers blue or violet and white.......... 2... eee ee eee apes Mei is Gens ees ete 3, 4 
Blowers: yellowinictciacey cua speiteuerede yee las mash ater awakes aveisbeeleesersve 7, 8, 9, 10, 12 
“** Leaves lobed or divided. Flowers yellow or yellow and purple or blue, 
Stems a few inches to a foot high.......... 2... cscs cece eee ccc c eee een e ences 6, 12 
Stems short or nun... was asain sareneiecvesantnenensemsneme eens seres 13, 14, 15 
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. premorsa, 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. 
ll. 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. 
16. V. Sheltonii, Torr. Narrower petals yellow, purple veined. 
POLYGALACEER. 
Side sepals petaloid, larger: petals 3 united with stamens, middle one hooded and 
