112 LEGUMINOSiE. (PULSE FAMILY.) 
30. OliEDITSCHIA, L. Honey Locust. 
Flowers polygamous. Calyx of 3 - 5 spreading sepals, united 
at the base. Petals as many as the sepals, and equalling them, 
the 2 lower sometimes united. Stamens as many, distinct; 
„ inserted with the petals on the base of the calyx. Pod flat, 1 - 
many-seeded, a sweet pulp usually surrounding the flat seeds. — 
Thorny trees, with abruptly 1 - 2-pinnate leaves, and inconspicu¬ 
ous greenish flowers in small spikes. (Named in honor of Pro¬ 
fessor Gleditsch , a botanist contemporary with Linnaeus.) 
1- C. triacautlios, L. (Three-thorned Acacia, or Hon* 
ey Locust.) Thorns stout, usually triple or compound; leaflets 
lanceolate-oblong, somewhat serrate; pods linear, much elongated, 
often twisted, filled with sweet pulp between the seeds. — Rich 
woods, Penn, and south westward. July. — Common in cultivation as 
an^ornamental tree, and for hedges. The long and curved flat pods 
(1 “ li * n length) appear in autumn like large apple-parings, pen¬ 
dent from the branches. 
Order 38. ROSACEA. (Rose Family.) 
Plants with regular flowers , numerous {rarely few) dis• 
tinct stamens inserted on the calyx , and 1 — many pistils , 
which are quite distinct , or {in the Pear tribe) united and 
combined with the calyx-tube . Seeds ( anatropous) l-few 
in each ovary , without albumen . Leaves alternate , with 
stipules. Calyx of 5 (rarely 3-4-8) sepals, united at 
the base, often appearing double by a row of bractlets out¬ 
side. Petals as many as the sepals (rarely wanting), imbri¬ 
cated in the bud, and inserted with the stamens on the edge 
of a disk that lines the calyx-tube. Trees, shrubs, or herbs. 
This important family comprises three principal suborders. 
Synopsis. 
Suborder I. AMYGDAlE^E. (Almond Family.) 
Calyx entirely free from the solitary ovary, deciduous. Stylo ter¬ 
minal. Fruit a drupe (stone-fruit). — Trees or shrubs, with simple 
eav es, t e bark exuding gum, and the bark, leaves, and kernels yield¬ 
ing the peculiar flavor of prussic acid. 
1. Prunus. Drupe with a flattish 2-edged smooth stone. 
2. Cerasus. Drupe globular, with a rounded smooth stone. 
