1912 Wiegand,— Amelanchier in eastern North America 151 
together: leaves generally obovate, less commonly ovate, oval or 
oblong (average blades 4-10 em. long by 2.2-5 em. wide); base cordate, 
or very rarely rounded or subacute on individual leaves near the ends 
of shoots; apex very acute, or more commonly acuminate; margin 
very sharply and somewhat doubly serrate almost or quite to the base, 
with medium ovate-triangular acuminate teeth separated by usually 
acute rather deep sinuses (6-10 teeth per em.; (38) 45-75, mostly 
50-60 teeth, on each side of average leaves); blades and petioles densely 
white tomentose below when young, less so above, traces of tomentum 
usually persistent, especially on the petioles, until maturity or even 
until old age, becoming green, not purple, very small at flowering 
time and not unfolded, or even entirely enclosed within the bud- 
scales; at maturity green or yellowish green, scarcely glaucous; 
primary veins in average leaves 11-17 pairs, often with short inter- 
mediate ones, unequally distant, sinuous, anastomosing and indistinct 
in the outer third, the uppermost very irregular, widely spreading; 
mature petioles 10-25 mm. long: racemes short, rather dense, nodding, 
3-5 em. long; lower pedicels 8-17 mm. long, becoming 15-25 mm. long 
in fruit, silky tomentose: flowers of medium size: petals linear or 
linear-oblong, 10-14 mm. long: hypanthium small, 2.5-3 (rarely 3.5) 
mm. in diameter, campanulate, glabrous or somewhat woolly, soon 
stretched around the summit of the ovary after flowering, and not 
constricted below: sepals broadly oblong-triangular, abruptly pointed 
or obtuse, rarely more slender, tomentose, 2-3 mm. long, abruptly 
reflexed at the base when the petals fall: summit of ovary glabrous: 
fruit scanty, maroon-purple, dry and tasteless. Fras. 6 A-G. 
Flowers appearing very early in spring before the leaves, or with 
the leaves in the more shrubby forms; fruit ripening in June. Dry 
banks and hillsides, Washington County, Maine, and from western 
New Hampshire to Iowa, Kansas and Missouri, and southward to 
Georgia and Louisiana. 
The broad sepals and small hypanthium are usually quite character- 
istic of this species, but both vary to some extent. It is also the only 
species with leaves distinctly tomentose on both surfaces when young. 
It is distinguished from A. laevis by the tomentose inflorescence and 
leaves, the size of the hypanthium, shape of the sepals, number of 
veins in the leaves, and the number and shape of the teeth. From 
A. oblongifolia it differs in habit, in length of petals, size of hypanthium, 
shape and position of the sepals as well as the shape of the leaf, and its 
apex. The teeth are sharper and larger than in A. oblongifolia, with 
deep sharp sinuses. In the Southwest, the sinuses, however, are fre- 
quently shallower and not so acute, and the hypanthium is often 
larger. The tomentum is more persistent than in any of the other 
species. 
