1912] Wiegand,— Amelanchier in eastern North America 155 
obovate or elliptical (blade 4-6 cm. long by 2.5-4 em. wide), sub- 
cordate, rounded, or more rarely acute at base; apex short acuminate; 
margin sharply serrate nearly to the base (except in occasional speci- 
mens in which some or all of the lower teeth are omitted), with firm, 
callous-tipped, usually subulate, medium-sized teeth, and usually 
rounded sinuses, the body of the teeth usually wanting, or more 
rarely with acute sinuses and more prominent cuspidate teeth (6-8 
teeth per em.; 35-46 teeth on each side); glabrous from the first or 
with a few silky hairs, at flowering time one-half to three-fourths 
grown and lurid-glaucous-purple, rarely bright green, at maturity 
dark green and slightly glaucous, even the petioles glabrous; primary 
veins 12-17 pairs, with short intermediate ones, unequally distant, 
sinuous, slightly upcurving, anastomosing near the margin, upper- 
most widely spreading; mature petioles slender, 12-25 mm. long: 
racemes, when well developed, many-flowered, flexuous, drooping, 
glabrous or nearly so, 3-7 cm. long; pedicels very long, the lower 
15-33 mm. long, becoming in fruit (25) 30-50 mm. long: flowers large 
and showy: petals oblong-linear, 10-18 mm. long: hypanthium 
campanulate, 2.75-5 mm. broad, glabrous, soon stretched around the 
summit of the ovary after flowering, very slightly or not at all con- 
stricted below: sepals triangular-lanceolate or subulate (2.75) 3-4 mm. 
long, mostly abruptly reflexed at the base when the petals fall: sum- 
mit of the ovary glabrous: fruit purple or nearly black, glaucous, of 
fair quality, when half grown often broader than long. Fics. 7 A-G. 
Flowers appearing with the leaves in early spring; fruit ripe in 
June in the latitude of Massachusetts and New York. On damp 
wooded slopes and banks, or in fields where not too dry, or at the edge 
of swamps, in calcareous and non-calcareous soil, from Newfoundland 
throughout New England, westward to Michigan and Kansas; and 
southward along the mountains to Georgia and Alabama. Type in 
Gray Herb. “near Aqueduct Bridge, Wellesley, Massachusetts, May & 
June 1911” Wiegand. 
Forma nitida, f. nov., foliis perviridibus nitidis.— Leaves deep 
green, not glaucous, lustrous. In Newfoundland, and probably 
elsewhere. Type in Gray Herb. Bishop’s Falls, Newfoundland, 
July, 1911, Fernald & Wiegand, no. 5593. 
A more northern species than A. canadensis, very common in 
Newfoundland, and fairly common throughout New England. At 
Ithaca, N. Y., it grows in the ravines bordering Cayuga Lake, in damp 
situations, and usually on the south sun-screened side; while A. 
canadensis is found on the dry rocky crests and fields nearby. In 
central New York it also occurs around swamps. Though a tree in 
New York and southern New England, it becomes more like a fastigi- 
ate shrub in its northern range, especially in Newfoundland. ‘There, 
also, the leaves are frequently narrower, and a larger proportion of 
