126 



KEY AND FLORA 



C. Stone deeply furrowed and pitted ; fruit downy when ripe. Branches 

 not spiny. (^Peaches and almonds.) 



8. P. persica Stokes. Peach. A tree with a rounded top; bark 

 nearly smooth. Leaves lanceolate, taper-pointed, finely serrate, smooth 

 on both sides ; petioles usually bearing 2 or 4 crescent-shaped or cup- 

 shaped glands. Flowers pink, scaly-bracted. Fruit ovoid, with a 

 seam along one side. Often escaped from cultivation.* 



47. LEGUMINOSjE. Pulse Family 



Herbs, shrubs, or trees. Leaves alternate, usually com- 

 pound (either pinnately or palmately), with stipules, the 

 leaflets mostly entire. Calyx of 5 sepals, which are more or 

 less united, often somewhat zygomorphic. Corolla of 6 petals. 



Fio. 20. Pulse Family 



A, actlnomorphic corolla (Acacia cinerascens) ; B, zygomorphic corolla 

 {Cassia marilandica) . (After Schnizlein) 



often papilionaceous (Fig. 21) or somewhat actlnomorphic, in 

 No. XVI much reduced. Stamens diadelphous (Fig. 22), mon- 

 adelphous, or distinct. Ovary simple, superior. Fruit usually 

 a 1-celled pod (Fig. 22). Seeds one or several, without endo- 

 sperm. A large and very important family, containing about 

 8000 species. 



