06 ROSACEAE. 
8. Style one. 9: 
Styles two or three: fo: 
9g. Spiny. I0: é ; 
UnhaFmed: €: motiog¥na inermis: 
to. Leavés médérately lobed. 11: . are 2: 
Léave$ inciséd. | €. monogyria lacifiata. 
11. Shrubby, ever-blooming. €. mofiogyria séempefflorens. 
Tree-like. 12, 
12. Somewhat fastigiate. C. monogyna stricta. 
Not fastigiate. 13. 
13. Flowers white. 14. 
Flowers rosy or red. 15. 
14. Flowers single. C. monogyna. 
Flowers double. C. monogyna albo-plena.. 
15. Somewhat weeping. C. monogyna roseo-pendula. 
Not weeping. 16. 
16. Flowers single. 17. 
Flowers double. C. monogyna rubro-plena. 
17. Flowers white at center. C. monogyna rosea. 
Flowers colored throughout. C. monogyna punicea. 
18. Flowers white. 109. 
Flowers rosy or red. 20. 
19. Fruit bright red. C. Oxyacantha. 
Fruit yellow, C. Oxyacantha aurea. 
20. Flowers single, white at center. C. Oxyacantha bicolor. 
Flowers double, red throughout. C. Oxyacantha Paulii. 
21. Leaves scarcely longer than broad. C. rotundifolia. 
Leaves distinctly longer than broad. 22. 
22. Leaves large, softly hairy beneath. 23. 
Leaves glabrate. C. pruinosa. 
23. Armed. C. mollis. 
Spineless. C. mollis inermis. 
PyRACANTHA, Firethorn. 
Evergreen shrubs with hard brownish wood with numerous 
minute diffused ducts and fine medullary rays; slender some- 
what fluted twigs often forming spurs or transformed into 
