219 
this tree occurs in all parts of Indiana. It is rare in the northern 
part and increases in frequency toward the south. It is most abundant 
in rich soil near streams and just back of the flood plain. In the 
southern part of the State it is found in patches, where it is some- 
times the principal species on areas of an acre or more. In the 
northern part of the State it is commonly a medium sized tree, 
8-15 m. (25-50 feet) high and 3-5 dm. (12-20 inches) in diameter. 
In the southern part of the State it is usually somewhat larger. 
The published records of the distribution are as follows: Cass 
(Hessler); Clark (Baird and Taylor); Dearborn (Collins); Delaware, 
Jay, Randolph and Wayne (Phinney); Fountain (Brown); Franklin 
(Meyncke); Gibson (Schneck); Hamilton (Wilson); Jefferson 
(Barnes) and (Coulter); Knox (Ridgway) and (Thomas); Kosci- 
usko and Laporte (Coulter); Marion (Wilson); Miami (Gorby); 
Monroe (Blatchley); Noble (Van Gorder); Parke (Hobbs); Posey 
(Schneck); Putnam (MacDougal); Steuben (Bradner); Tippecanoe 
(Cunningham); Vigo (Biatchley). 
Additional records are: Putnam (Grimes); Tippecanoe (Coul- 
ter); Hancock, Orange, Vermillion, Wells (Deam). 
Economic uses. Wood heavy, not hard, strong, coarse-grained, 
checks on drying, works easily, takes a high polish, sap wood con- 
sisting of 5 or 6 years’ growth, light colored, heart wood light brown 
with a tinge of red. It is said to be durable in contact with the 
soil, although this is disputed by a majority of those who have 
tried it. The pioneers used the roasted nuts as a substitute for 
coffee to some extent, which gave the tree its common name. The 
bruised leaves covered with sweetened water were used as a fly 
poison. 
Horticultural value. It is occasionally planted as an ornamental 
tree. It is not a rapidly growing tree, leaves appear late and fall 
early. The absence of small branches make it unattractive in the 
winter condition and when used it is no doubt to satisfy a desire 
for variety. 
FABACEA. Tue Pra Famnity. 
ROBINIA Tue Locust. 
Robinia Psetido-Acacia Linneus. Locust. Buack Locust. 
YeutLtow Locust. Plate 106. Bark deeply furrowed, dark brown; 
twigs slender, zigzag, green and hairy when young, becoming smooth 
and reddish-brown, older branches armed with pairs of short and 
