78 DICOTYLEDOIVOUS. 



minate, sharply serrate, veined beneath; petioles with two glands nearly 

 glabrous when old. Flowers in umbels 2--5. Segmenls of the calyx lanceo- 

 late. Fruit a roundish drupe, reddish when ripe, large with a tough skin. 



Yellow plum. Bed plum. 

 White. T^- March and April. Along the banks of streams. 15-20. 

 2. P. Maritima. a low shrub. Leaves oval or ovate, acuminate, finely 

 serrate. Umbels iew How eied. Fruit nenvly globular, covered with bloom, 

 red or purple, pleasant to the taste. 



White T2- March aad April. On the sea coast. 



Genus III. CERASUS. 



Calyx inferior, campanulate, 5-cleft. Petals 5-spreading. 

 Stamens numerous. Drupe globose, nucleus, smooth. Leaves 

 conduplicate in vernation. Cherry, 



1. C. ViRGiNiANA. A tree with smooth branches, or small shrubs, with 

 greyish bark. Leaves broadly oval, or oblong-lanceolate, mucronate, serrate 

 or entire; petioles glandular. Flowers in axillary racemes, short, erect, seg- 

 ments of the calyx acute, whuish. Petals nearly orbicular. Fruit a dark 

 red globular drupe, very astringent. Choke Cherry. 



White, h- March— April. Near Columbia S. C. 10--S0 ft. 



2. C. Serotina. a large tree with spreading, smooth branches. Leaves 

 oval oblong, acuminate, generally glabrous, somewhat lucid, doubly serrate; 

 petioles glandular. Fhwers in elongated racemes. Petals nearly orbicular. 

 Drupes nearlv black, eatable. Wild or Black Cherry^ 



White, 'h- April— May. In rich soils. 30—80 ft. 



3. C. Caroliniana. A tree of ornamental growth. Leaves oblong lan- 

 ceolate, slightly acuminate, mucronate, entire, or serrate-coriaceous, shining 

 above ; petioles short. Flowers in dense racemes, from the axils of the leaves 

 of the preceding season. Petals small, obovate. Stamens long. Drupe black, 

 persistent, dry. 



White. T^. March— April. On the Congaree, near Columbia. 



Genus IV. SPIRiEA. 



Calyx S-cleft, expanding, persistent. Petals 5, nearly' 

 round. Stamens numevous, exseit. CctrpeZs 3-12, 1-3-seed- 

 ed, distinct, or slightly united at the base, follicular, generally 

 2-valved. Shrubs or perennial herbs. Leaves alternate. — 

 Flowers sometimes dicEcious. 



1. S. Opultfolia. a small shrub, with the old bark detaching itself. — 

 leaves ovate, roundish, or subcordatc, 3-lobed, doubly serrate, glabrous. Flov)* 

 ers in terminal corymbs, numerous, pedicels filiform. Carpds 3-5 inflated. 

 Seeds obovate, shining, very bitter. Nine Bark. 



White, h- June— July. Mountains. 3-5 feet. 



2. S. Salicifolia. A shrub with slender, somewhat angular branches, 

 and slightly pubescent. Leaves lanceolate, sharply serrate. Flowers in 

 crowded, paniculate, terminal racemes ; segments ol" the calyx lanceolate. 

 Petals s\'ighi\y unguiculate, shorter than the calyx. Carpels 5, glabrous, uni- 

 ted at the base. Seeds numerous. Queen of the Meadow, meadow sweet. 



White, h- June— July. In wet places. 3-6 feet, 



3. S. ToMENTOSA. A shrub with ferruginous, tomentose branches. Leaves 

 on short petioles, ovate or oblong, unequally serrate, crowded, tomentose be- 

 neath. Flowers in numerous, dense, paniculate racemes. Calyx tomentose, 

 with reflected segments. Petals small, hairy on the outer surface. Carpels 

 5, tomentose. Seeds few subulate. Hardhack, 



Purple. June— July. Upper districts of Car. &. Ga. 3-6 feet. 



