126 KEY AND FLORA 
C. Stone deeply furrowed and pitted ; fruit downy when ripe. Branches 
not spiny. (Peaches and almonds.) 
8. P. persica Stokes. Pzacu. 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. LEGUMINOSZ. Putse Famity 
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.5 petals, 
Fic. 20. Pulse Family 
A, actinomorphic corolla (Acacia cinerascens); B, zygomorphic corolla 
(Cassia marilandica). (After Schnizlein) 
often papilionaceous (Fig. 21) or somewhat actinomorphic, 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. 
