PLUM TREE 
Natural Order , Rosacea, ( suborder Amygdale,®, Juss.) 
Linncean Classification , Icosandria, Monogynia. 
PRUNUS, (Tournefort.) 
Calyx urceolate-hemispherical, the border 5-cleft, deciduous. 
Petals spreading. Stamens 15 to 30. Ovary glabrous, with 
2 collateral pendulous ovules. Drupe ovate or oval, fleshy, 
glabrous, usually covered with a bloom; nut hard and bony, 
more or less compressed, acute and even, the margins partly 
grooved. 
Trees or shrubs of temperate climates in the northern hemi- 
sphere with the leaves serrated, convolute in vernation (or 
before expansion.) The flowers earlier than the leaves, with the 
pedicels in umbellate clusters. 
WILD PLUM. 
PRUNUS Americana, arbor escens, ramis spines centibus, 
foliis ovato-oblongis vet obovatis argute serratis acumina - 
tis basi cuneatis , subtus venosis demum glabris , petiolis 
sub-biglandulosis , umbellis sessilibus paucifloris (2-5), f rue- 
tibus ovalibus. 
P. Americana. Marshall . Arbust. p. 111. Darlington. Flora 
Cestr. p. 287. and in Annal. Lyceum. N. York, vol. 3. p. 87. 
t. 1 . Torrey and Gray. Flor. N. Amer. vol. 1 . p. 407. 
P. nigra. Alton . Kew. (ed. 1.,) vol. 2. p. 165. Bot. Mag. t. 
1117. Pursh. Flor. Am. vol. 1. p. 331. Willd. Sp. pi. vol. 
4. p. 993. 
