State Board of Forestry. 313 



yellow on more or less hairy pedicels, the staminate and pistillate 

 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 is the sweetest of any of the maples. 



^SCULACE.^. The Buckeye Family. 



i^SCULUS. The 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 



