Order 47.— ROSEWORTS. 203 



e Carpels many, in the fleshy calyx. Flowers often double. Eose. Rosa. 5 



e Carpels 2 only, in the dry, fluted, prickly calyx. Agrimony. Agrimo'nia. 



f Petals and sepals 8 or 9. A small, rare plant on mountains DpwVas. 



f Petals and sepals 5. Achenia numerous. Averts. Geum. 



g Sepals equal. Fruit a heap of pulpy achenia. Fls. cyanic. Bramble. Rubus. 7 

 g Sepals unequal. Stems creeping. Flo»-ers white. False Violet. Dalibar'da. 8 



h Torus small, dry. Flowers yellow. Bractlets minute or 0. Waldstei'nia. 9 



h Torus small, dry. Fls. mostly yellow. Bractlets large. 



Oinqxiefoll. Potextil'la. 10 



h Torus becoming very large and juicy in fruit. Straivbemj. Fraga'ria. 11 



h Torus becoming large and spongy. Fls. purple. Lvs. pinnate. Com'arum. 

 k Petals obovate, not yellow. Stamens very long. Steeple-bush. Spir^''a. 12 



k Petals lance-linear, not yellow. Stamens very short. Indian Physic. Gille'nia. 

 k Petals multiplied, orange-yellow. Pods 1-seeded. Shrubs. 



Guelder Eose. Ker'ria. 



1. CER'ASUS. Cherry. 



Calyx 5-cleft, regular, deciduous. Petals 5, mucli spreading. Stamens 

 15-30. Ovary with 2 ovules. Drupe globular, very smooth, destitute 

 of a glaucous bloom. Stone also globular and smooth. — Trees or shrubs. 

 Leaves folded in the bud. Flowers early, white. May. (Fig. 452.) 



§ Leaves evergreen, leathery, entire 1 



§ Leaves deciduous, thin a 



a Flowers in umbel-like clusters from side buds. Drupes red b 



a Flowers in racemes leafy at base. Cherries black or blackish 2, 3 



b Shrubs or trees growing wild, native. . . ,4, 5 



b Trees cultivated, not native 6, 7 



1 0. Carolima'na. Cherry Laurel. Flowers in dense, short racemes. Fruit black, 

 poisonous. Splendid in cultivation. 



2 C. sero'tina. Wild Black G. Trees with lance-oblong, blunt-toothed leaves. 



3 C. Virginia'na. Choke C. Shrubs with oval-obovate, slender-toothed leaves. 



4 O. pum'ila. Sand G. Shrubs trailing, with lance-obovate, acute lvs. Fr. egg-shaped. 



5 O. Pennsylvan'ica. Wild Eed C. Trees. Lvs. oblong-ovate, acuminate. Fr. roundish. 



6 C. A'vium. Oxheart C. Leaves oblonof-ovate, acuminate, hairy beneath. 



7 C. vulga'ris. Great Eed G. Leaves lance-ovate, acute, narrowed to base. 



2. AMELAN'C.lilER. June-berry. 



Calyx 5-cleft. Petals 5, oblong-ovate and oblanccolate. Stamens short. 

 Styles 5, somewhat united at base. Pome 5-celIed, cells cartilaginous, 

 each nearly divided into two 1-seeded divisions. — Snuill trees or shrubs 

 with simple, serrate leaves, and white early flowers in racemes. 



