48 BOSACEX. 
ll. L. Torreyi, Gr. Acute leaflets 6 lines long: purplish flowers solitary. 
14. CERCIS, Linnezus. 
C. occidentalis, Torr. Small standard enclosed by the wings: pods red. 
ROSACEE. 
~ Shrubs or Trees. 
a. Flowers white, 3 lines or more across: carpels 1-6, distinct. 
Carpel 1, becoming a drupe (like a cherry or plum)............++- pieieisieisinrs Sra | 
Carpels 5 (or often wanting), stamens 15: racemes drooping: cherry-like..........+.++ 2 
Carpels 2-5, becoming inflated, usually reddening: stamens 20 or more..........-..+- 7 
Carpels 5, hairy: leaves bipinnate, leaflets minute: panicles leafy............-.02+005- 8 
Carpel 1, becoming an akene: low shrub: leaves tripinnate...........0.eeseee eee eee 9 
b. Flowers white, 2 lines broad or less, in dense panicles: carpels 1 to 12. 
Stamens 20 or more: flowers in plumose panicles: leaves large, lobed...........-+---- 6 
Stamens 10-15: evergreen leaves 2-4 lines long: panicles erect............260-2-.0055 18 
ce. Flowers rose-color or pale purple, small: carpels 5, distinct.......0.0.000 eee ener eee 3 
ad. Flowers 3 lines or more across: carpels 2-5, enclosed by the fleshy calyx-tube forming an 
inferior ovary (partly inferior in 24). 
Evergreen leaves serrate: carpels 2: stamens 10: berries scarlet...........0.-e20000 ee 24 
Deciduous leaves simple: flowers corymbose. 
Fruit red or yellow: no spines or thorns.......- AtHS sigemieted dase sa esate 25 
Fruit black or purple: spinose.... 625.220 oe ee ee eed cece eee voce eeeeeens 26 
Deciduous leaves simple: flowers racemose: petals oblong............--..2+0eeeeeeee 27 
e. Flowers 6 lines broad or more: stamens and carpels numerous: fruit like a blackberry or 
PORPDENTY sco star a Nes CES GEER rads igs A eelee ee ESR Nee eee LTE G4 EEE ER EEES ASE SARS 10 
Sf. Flowers solitary, axillary, small: petals none: calyx white, the limb deciduous: carpel 1 
(rarely.2), long plumose tatled 0 ssisniagmswiaced dace Geen nem ieaeemseceses 11 
g. Flowers rose-colored an inch or more across: stamens many: ovary apparently inferior: 
stems slender, prickly: leaves pinnate... . 22... 2c. cence cece eee ee eee en eeeeee 23 
* Herbs 
a. Flowers 6 lines broad or more: akenes forming @ berry... ....e ccc ecnececececeuees 10 
6. Flowers very small (except 1 sp. in 3), white: calyx lobes 5 (no intermediate ‘bbe or bract- 
lets): stamens 20 or more: carpels 3-10. 
Leaves very large, tripinnate: spikes in large panicles.............. Bsdceiw Mecrevery Sie 4 
Leaves twice or thrice 3-cleft: raceme shurt.......... 2.22 eee eee seas sitageanmee es 5 
Lesves entire, rosulate, silky: scape low............. 2 cee eeeeeceee eeeeeee 3d sp. in 3 
Leaves 5-7-lobed with small basal leaflets: petals 2-3 lines — soccccccees 4th sp. in 3 
