XXVIII. 3. THE BLACK CHERRY. 453 



as far as the Saskatchawan, and from Newfoundland to the 

 Rocky Mountains. It is found in all the New England States, 

 but is not known beyond Pennsylvania. 



Sp. 2. The Sand Cherry. C. pumila. Michaux. 



This has been found on Blue Hills, in Milton, by B. D. Greene, 

 and rarely elsewhere in the State. It usually trails along the 

 ground, raising its branches from three or four, to twenty inches 

 high. The branches are brownish, with transparent, grayish, 

 outer bark. The leaf-buds are small and purple ; the leaves 

 are usually inversely egg-shaped or lance-shaped, often nearly 

 entire or serrate with a few indistinct teeth above, acute or 

 rounded at the extremity, tapering to a slender footstalk, with 

 linear, glandular-serrate stipules at base when young ; pale green 

 above, whitish beneath. The flowers, 2 or 3 together, are on 

 slender stems, half an inch long. Segments of the calyx round- 

 ed. Petals white, rather small, inversely egg-shaped. Stamens 

 numerous. Fruit small, dark red, eatable. 



Section Second. — Flowers in racemes ; terminating leafy 



branches. 



Sp. 3. The Black Cherry. C. serotina. De Candolle. 



A tree of middling size, with spreading branches, found in 

 dry woods and often left growing along the roads. The bark 

 on the recent shoots is green or olive-brown, polished, and dot- 

 ted with minute, orange dots. It afterwards becomes darker, 

 and on the small trunks and larger branches, is of the reddish or 

 purplish brown, scattered with oblong, horizontal dots, charac- 

 teristic of the cherry. Old trunks have a scaly bark, not unlike 

 that of some of the pines. The leaves are ovate or lanceolate, 

 oblong or obovate, rounded or acute at base, gradually tapering 

 to a point, serrate with incurved serratures, polished above, 

 lighter and smooth beneath, with sometimes a silken pubescence 

 along the lower part of the mid-rib. Footstalk half an inch 

 long, with usually 2 to 5 tooth-like glands near the base of the 

 leaf. In autumn, the leaves turn to a deep orange, sprinkled 



