is.)i. PROCEEDIXGS OF THE NATIONAL MUSEUM. 413 



tlint lie had lately received specimens of JT. aquatica from Mr. W. F. 

 Fortune, collected at Equality, Gallatin county. 111., adding- that it 

 was sent to him as H. Pecan., " which the foliage much resembles, but 

 the nuts are much flattened, and ridged, and the meat is as bitter as 

 that oi H. minimay 



In view of this virtual confirmation of Prince von Wied's record of 

 H. aquatica, H. mynsticwformis should be looked for in the lower 

 Wabash bottom-lands. 



65. (21S.) QUERCIJS DIGITATA ( M a r s li a 1 1 ) S u <1 w o r t li. Spanish Oak. 



A specimen of this oak measured by Dr. Schneck was 97 feet high 

 and 6 feet in circumference. 



In the White River bottoms there occurs a very strongly marked 

 variety of this species or possibly a tree that is specifically distinct, dis- 

 tinguished from the true (J. digitata, which is especially a tree of thin- 

 soiled uplands, by its much larger and taller growth and distinctly 

 light-colored bark. In fact, although it has the bristle-pointed, acute- 

 lobed leaves of the black-oak group, and moreover has the lobes shaped 

 as in Q. digitata and the under surface of the leaves densely tomentose 

 as in that species, the bark of the trunk is so light-colored as to cause 

 the tree to be easily mistaken for one of the white oaks, as, for exami)le, 

 Q. alba or Q. Mi(h1cnhrrgii, which it further resembles in habit. So very 

 different is it, in these particulars, from Q. digitata that I feel quite 

 certain it will i)rove, on investigation, to be at least subspeciflcally 

 distinct. 



The first specimen met with by me was growing in the White River 

 bottoms, about five miles above the mouth of that stream, on the south- 

 ern side. It measured 14 feet in circumference, with the trunk free of 

 branches for at least 70 feet, but rather crooked. Other trees quite 

 identical in characters were afterward examined by Dr. Schneck and 

 myself near White River Pond, several miles southwest of the tree 

 above mentioned, but neither of us have seen it elsewhere than in the 

 bottom lands lying between the extreme lower portions of White and 

 Patoka rivers, where the typical black-barked Q. digitata seems not to 

 occur at all, being, as previously stated, apparently confined to thin- 

 soiled or clayey uplands. 



66. (222.) QUERCUS IMBRICARIA, MicLaux. Laurel Oak; Shingle Oak. 

 Height, 100 feet; circumference, 8 feet (Schneck). 



67. (226.) QUERCUS LYRATA, Walter. Swamp Post Oak; Overcup Oak. 



This tree grows in the bottoms of all the streams tributary to the 

 Wabash, at least as far north as Jasper county. 111., where I found it 

 in the vicinity of Rafe's mill, in July, 1887. In Fox River bottoms, 



