in different clusters, sometimes on the same or different trees, 
flowering period April or May; fruit ripens late in the summer, 
glabrous, wings diverging slightly more than those of the preceding 
species. ‘This tree so closely resembles the preceding that by some 
authors it is regarded as only a variety of it. It can usually be 
easily distinguished from the sugar maple by its tighter bark, some- 
what larger and more drooping leaves which are a shade darker, 
and by the yellow green color of the under surface of the leaves. 
The under surface of the leaves of the sugar maple in our area is 
whitish or glaucous. The sides of the leaves of the black maple 
droop and the bases of the petioles of especially the last pair of 
leaves develop two scales which by the end of the season are con- 
spicuous and resemble stipules. 
Distribution. Quebec south to Georgia and west to South Da- 
kota, Kansas and Louisana. In Indiana it is widely distributed. 
It is more or less frequent in all the area where it is found. It is 
usually found associated with the sugar maple, which it resembles 
in size and appearance. It prefers a moist rich soil, where it is 
often more frequent than the sugar maple. 
The published records of the distribution are as follows: Clark 
(Baird and Taylor); Delaware (Phinney); Gibson (Schneck); Ham- 
ilton (Wilson); Kosciusko (Coulter); Marion (Wilson); Monroe 
(Blatchley); Posey (Schneck); Putnam (MacDougal); Vigo (Blatch- 
ley). 
Additional records are: Putnam (Grimes); Tippecanoe (Coulter) 
and (Dorner); Delaware, Jefferson, Jennings, Montgomery, Ver- 
million and Wells (Deam). 
Economic uses. Same as the preceding species. It is claimed 
that the sap of this species 1s the sweetest of any of the maples. 
236 
yellow on more or less hairy pedicels, the staminate and pistillate | 
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ZESCULACEZE. Tue Buckeye Famity 
AESCULUS. Tue BUCKEYES. 
Trees with brown or ashy-gray, scaly bark; twigs stout; buds 
large; leaves opposite, palmately divided into 5-9 ovate to oblong 
divisions, the divisions serrate, hairy when young, glabrous at matur- 
ity except a few hairs along the veins beneath; flowers appearing 
when the leaves are half grown in terminal panicles; fruit a yellow- 
ish-green, three-lobed capsule, generally with one seed, sometimes 
