FLOWERING PLANTS AND FERNS OF INDIANA. ?15 



U. alata Michx. Winged Elin. Wahoo. 



A small tree, found in the southern and southwestern counties, 

 usually in moist soils along streams. Occasionally it occurs in dry 

 uplands. It is ordinarily rather sparingly found, though quite 

 frequent in Crawford and Harrison counties. 



The wood is compact and unwedgable, and is largely used for 

 hubs, blocks, etc. 



Flowering season, March and April. 



U. fulva Michx. Slippery or Red Elm. 



Generally but sparingly distributed throughout the State. More 

 abundant apparently in the southeastern counties than in other parts 

 of the State. A tree, in our area, from 45 to 60 feet high and. with 

 a trunk diameter of from one and one-half to two feet. 



Its wood is close-grained, compact and strong, and durable in 

 contact with the soil. It splits readily when green. Largely used 

 for wheel-stock, fence-posts, rails, railway ties, sills, etc. An in- 

 fusion of the inner bark is a favorite household remedy. It grows 

 most plentifully on the borders of streams and on hillsides in rich 

 soils. 



Flowers in March and April. 



Distribution general. 



PLANERA. J. F. Gmel. 



P. aquatica (Walt.) J. F. Gmel. Water Elm. 



In swamps and other extremely wet places in the central and 

 southern parts of the State, but always in sparing numbers. It is 

 not reported as occurring north of Putnam County. A small tree in 

 our area, rarely exceeding 30 feet in height, with a trunk diam- 

 eter of from one to one and one-half feet. 



The wood is soft and weak and of no special economic value. 



Flowering season, April and May. 



Distribution indicated above. 



CELTIS L. 



C. occidentals L. Hackberry. Sugarberry. 



Common throughout most of the State, but sparingly found in the 

 central-eastern counties, and reduced in size in the northern coun- 

 ties. It is ordinarily found in open woods in dry soils, and particu- 

 larly affects upper river terraces. A tree from 60 to DO feet high, 

 though exceptionally found from 110 to 115 feet (Ridgwav, with 

 a trunk diameter of from two to five feet. 



