ROSACEAE, Ior 
4. Leaflets about 7: flowers small, in spring. 5. 
Leaflets 5: flowers in summer. (Prairie rose), R. setigera. 
5. Flowers white, early. (Polyantha rose). R. multiflora. 
Flowers red, in dense clusters, later. (Ramblers). 
. R. multiflora platyphylla. 
6. Flowers as in the last, through the season. (Baby 
rambler ). R. multiflora platyphylla. 
Flowers large or not in dense clusters. 7. 
7. Foliage not strongly scented. Io. 
Foliage heavy-scented, with bristly glands: flowers 
double. 8. 
Foliage aromatic, not bristly: flowers single. 
(Sweetbriers). R. rubiginosa. 
8. Prickles uniform: teeth of leaflets glandless. 
(Damask rose). R. damascena. 
Prickles very unequal: teeth glandularly toothed. 9. 
9g. Calyx “mossy”. (Moss roses). R. centifolia muscosa. 
Flowers not “mossy”. (Cabbage roses). R. centifolia. 
10. Flowers double. (Tea roses). R. odorata. 
Flowers single. IT. 
11. Flowers yellow, early. (Yellow rose). R. foetida. 
Flowers pink: stem and foliage pinkish. R. rubrifolia. 
Prunus. Plum. Cherry. ete: 
Deciduous or exceptionally evergreen trees or shrubs with 
hard usually reddish wood with scattered ducts, the first of the 
year sometimes slightly larger and forming a ring of a single 
series, and fine medullary rays; rather slender terete twigs some- 
times transformed into or ending in spines; rounded continuous 
pale pith; alternate somewhat raised crescent-shaped or _ half- 
round leaf-scars with 3 bundle-traces; minute often indistinct 
stipule-scars; triangular or ovoid sessile buds, the terminal want- 
ing in some groups, with several often denticulate exposed scales; 
chiefly lanceolate serrate petioled leaves; moderately small white 
perfect polypetalous perigynous flowers in axillary tufts or ra- 
cemes; and various-sized l-seeded drupes. 
1. With scar left by terminal bud. 2. 
With terminal bud present. Io. 
