AXVIIT. 3. THER 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 1s not known beyond Pennsylvania. 
Sp. 2. Tse Sanp Cuerry. C. pumila. Michaux. 
This has been found on Blue Hulls, 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 leafbuds 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.—Llowers in racemes, terminating leafy 
branches. 
Sp. 3. Tse Brack Cuerry. C. serdtina. 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 
