115 
R0SACE2E. (ROSE FAMILY.) 
leaves ovate and lanceolate, downy underneath; pedicels in pairs; 
fruit globular, black with a bloom. — Near Boston and Cambridge. 
P. domestica, L., is the common Cultivated Plum. 
2. CEKASUS, Tourn., Juss. Cherry. 
Flowers, &c., as in the Plum. Drupe globular, without a 
bloom; the stone also almost globular, smooth. — Leaves folded in 
the bud. (The ancient name, from a town on the Black Sea.) 
§ 1. Cerasus proper. — Flowers in clusters from lateral buds , appear¬ 
ing before or with the leaves , as in the Plums. 
1. C. pumila, Michx. (Dwarf Cherry.) Smooth, depress¬ 
ed and trailing; leaves obovate-lanceolate y tapering to the base , some¬ 
what toothed near the apex, whitish underneath; flowers 2-4 togeth¬ 
er; fruit ovoid, dark red. — Blue hills of Milton, Massachusetts, 
Greene , Rhode Island, Olney , and from Vermont northward to Michi¬ 
gan. May. — Trailing over rocks or sandy banks ; branches & - 18' 
high. 
2. C. Pennsylvdnica, Loisel. (Wild Red Cherry.) 
Leaves oblong-lanceolate , pointed , finely and shaiply serrate , shining , 
green and smooth both sides ; flowers many in a cluster, on long ped¬ 
icels ; fruit globose, light red. — Rocky woods, common northward. 
May. — Tree 20° -30° high, with light red-brown bark, and small 
fruit with thin and very sour flesh. 
§ 2. Pad us — Flowers in racemes at the end of leafy branches. 
3. C. Virginiana, DC. (Choke Cherry.) Leaves oval or 
obovate , abruptly pointed , very sharply {often doubly ) serrate with slen¬ 
der teeth , thin ; racemes short and close ; petals roundish; fruit red 
turning to dark crimson. — River-banks, common. May. — A tall 
overhanging shrub, seldom a tree, with grayish bark ; the fruit very 
austere and astringent till perfectly ripe. (P. obov&ta, Bigelow. P. 
serotina, of many authors.) 
4. CL serotilia, DC. (W^ld Black Cherry.) Leaves lan¬ 
ceolate-oblong , taper-pointed , serrate with incurved short and callous 
teeth , thickish, shining above ; racemes elongated; petals obovate; 
fruit purplish-black. — Woods, common. — A fine large tree, with 
reddish-brown branches, furnishing valuable timber to the cabinet¬ 
maker. Fruit slightly bitter, but w ith a pleasant vinous flavor. 
C. vulgAris and C. sylvestris are the parents of the various cul¬ 
tivated Cherries. 
ArmenIaca vulgAris, the Apricot, Persica vulgAris, the 
Peach, and P. lA:vis, the Nectarine, are the principal remaining 
cultivated representatives of this suborder. 
