431 



also rather common in the State, being reported from 25 counties. It is 

 said to consist of several races, differing in leaf-lobing, amount of 

 pubescence, and size of acorns. The large, somewhat loose bracts of 

 the acorns with the upper ones rather squarrose or tips horizontally- 

 wrinkled are characteristic. Leaves which I have taken from sucker 

 growth measure over a foot in length and over 9 inches in breadth. 

 They are very variable — some are deeply lobed, others almost entire. 

 The leaves on vigorous trees are also often comparatively large. The 

 inner bark is a deep orange. Chewed bits of the twigs are said to give 

 the saliva a yellowish discoloration in contradistinction to the Red Oak 

 and the Scarlet Oak, if not as well for other black oaks. (See pp. 406, 

 408, 429.) 



Quercus eUipsoidahs E. J. Hill. Hill's Oak. (Pin Oak, Yellow or Black 

 Oak. Bot. Gaz. 27:204. 1899.) 

 There is no certainty how plentiful this oak is in White County. 

 Sargent has verified a specimen taken about a mile northeast of Rey- 

 nolds on a low sand ridge. The tree was about 30 feet high and 6 inches 

 in diameter. "In Indiana it has been reported from Lake County only." 

 Very likely it will be found to occur at points between White County 

 and Lake Michigan. 



Quercus rubra L. Red Oak. (Sp. pi. 996. 1753.) 



This is the "largest and most valuable of the biennial oaks." It is 

 distributed throughout the State. In White County it is rather restricted 

 to the Tippecanoe area. The leaves are usually much less deeply lobed 

 than those of the other black oaks. The acorn when mature is usually 

 larger than the acorns of any other White County oak, except macro- 

 carpa. (See p. 406.) 



Quercus . . . ? 



A rather peculiar specimen of oak was taken about four and one- 

 fourth miles northeast of Brookston, in an oak forest on low, rich, black 

 soil. Two such trees were growing just beside each other. The bark 

 is close, almost black, and shallow fissured. These trees were about 45 

 feet high and 10 inches in diameter. Leaf specimens with twigs, buds 

 and acorns were collected on September 7, 1915. 



From the specimens and data at hand, at least three authorities 

 have disagreed as to the status of thii^ oak. All say it is a variable 



