5. Prunus pennsylvánica Linnæus filius. Wild Red Cherry. Plate 103. Small trees with smooth cherry-like bark, somewhat roughened near the base on old trees; twigs smooth, at least at maturity; leaves oval, oval-lanceolate, or ovate, sometimes slightly falcate, 4-10 cm. long, and 1.5-4 cm. wide, rounded or narrowed at the base, long acuminate at the apex, margins finely serrate with glandular incurved teeth, glossy and smooth above, generally smooth beneath, sometimes pubescent along the midrib and veins, petioles generally smooth, rarely pubescent; flowers appear with the leaves in May in umbels of 3-7, or sometimes raceme-like but the rachis shorter than the pedicels; calyx glabrous, the lobes glabrous within and without, entire and glandless; fruit ripens in August, globose, 6-7 mm. in diameter, red; stone roundish-oval, surface granular.
Distribution.—Newfoundland and New England to the Rocky Mountains, south to Colorado and eastward through northern Indiana to Pennsylvania and thence in the mountains to North Carolina. In Indiana it is definitely known to occur only in Lake, Porter, Laporte, St. Joseph and Lagrange Counties. It is frequently found on the black oak ridges about Lake Michigan. All other reports of this species for Indiana should be looked upon with suspicion. The one by Chipman from Kosciusko County may be correct. The one by Ridgway[55] for Posey County is undoubtedly an error. No doubt Phinney's[56] record for Central Eastern Indiana (Jay, Delaware, Randolph and Wayne Counties) is an error.
The range of the species is to the north of our area, and like a few others it is found about the Great Lakes south of its general range. In Ohio it is reported only from Cuyahoga County which borders Lake Erie.
PRUNUS PENNSYLVANICA Linnæus fils. Wild Red Cherry. (× 1/2.)
