FLOWERING PLANTS AND FERNS OF INDIANA. 711 



Wood very hard and strong, but not durable. Used for cooperage 

 and construction, but most largely for fuel. The bark is rich in 

 tannin and is used for tanning. 



Flowers in May and June; acorns ripen in September and 

 October. 



Range sufficiently indicated. 



Q. Marylandica Moench. Black-Jack Oak. Barren Oak. 



(Q. nigra Jj?) 

 Found in barrens north and south, ordinarily in dry soil. A 

 familiar tree, from 40 to 50 feet in height, and rarely exceeding two 

 feet in diameter. 



The wood is very hard and strong, but not durable, and checks 

 badly in drying. Of little value except for fuel. 



Flowers in May and June ; acorns ripen in October and November. 

 Distribution sufficiently indicated. 



Q. Phellos L. Willow Oak. 



Rare in rich, sandy soils, in the southwestern counties. A tree 

 from 60 to 80 feet high, with a trunk diameter of from two to three 

 feet. 



The wood is heavy and strong, but not hard. It is used somewhat 

 for wheels, clapboards and in construction. 



Flowers in April and May; acorns ripen in September and October. 



Found in Gibson, Posey and Knox counties. 



Q. imbricarca Michx. Shingle Oak. Laurel Oak. Peach-leaved Oak. 



A species easily distinguished from the fact that it is the only oak 

 within our area with entire leaves. The leaves are shining, lance- 

 olate in shape, and somewhat resemble those of the Peach. In 

 Vigo County the species is most commonly known as "Jack Oak." 

 It is fairly distributed throughout the State in rich soils. A tree 

 from 80 to 100 feet high and from two to three feet in diameter. 



The wood is heavy and hard, but checks badly in drying. Used 

 for clapboards and shingles, and highly valued as a fuel. 



Flowers in April and May; acorns ripen in September and October. 



Range, general. 



Q. alba L. White Oak. 



Common throughout the timbered regions of the State, in many 

 parts constituting the larger part of the forests. One of the most 

 valuable forest trees yet remaining in any numbers. The largest 

 specimens have, of course, been removed, but many of merchantable 

 size remain. The tree reaches a height of from 80 to 100 feet and a 

 trunk diameter of from three to seven feet. 



47-Geol. 



