414 TREES OF THE WABASH VALLEY— BIDGWAY. vol. xvii. 



immediately west of Sugar Creek prairie, Eiclilaud county, this oak 

 was the prevailing species over considerable areas of swampy woods. 



69. (I.) QUERCUS MICHAUXI, Nut tall. Michaux's Oak; Basket Oak. 



More recent investigations have shown this tree to be a common one 

 in rich bottom-lands, and certainly specifically distinct (in our district) 

 from Q. platanoides {Q. hicolor). 



70. (228.) QUERCUS MUHLENBERGII, Eugelmann . Yellow Oak; "Chinquapin." 

 Height, 155 feet; circumference, 12 feet (Schneck). 



71. (229.) QUERCUS NIGRA, Liuna-us. Black Jack; Jack Oak. 

 Height, 65 feet; circumference, 3^ feet (Schneck). 



75. (235.) QUERCUS MINOR (M a r s h all) S a r g e n t. Post Oak. 



While my estimate of "about 50 to 80 feet high, and 2 to 3 feet in 

 diameter" as the "usual size of the heavier growth" is probably very 

 nearly correct, larger trees occur, one measured by Dr. Schneck being 

 103 feet high and 10 in circumference. 



79. (244.) OSTRYA VIRGINIANA (Miller) W i 1 1 d e n o w. Hop Hornbeam. 

 Height 25 feet, girth 26 inches (Schneck). 



82. (249.) BETULA NIGRA, Linnn-us. Red Birch; River Birch. 



Height 105 feet, circumference 10 feet (Schneck). 



84. (— .) SALIX DISCOLOR, Mull lenberg. Glaucous Willow. 



Height 15 feet, circumference inches (Schneck). 



— . (— .) SALIX LONGIFOLIA, Muhlenberg. Long-leafed Willow; Sand-bar 



Willow. 



Height 70 feet, circumference 20 inches (Schneck). 



85. (261.) SALIX NIGRA, Marshall. Black Willow. 



My maximum measurement of 87^ feet is exceeded by one by Dr. 

 Schneck of a tree which was 95 feet high and 7i feet in circumference. 



88. "POPULUS TREMULOIDES. Aspen; Quaking-Asp." (= P. fjrandideniaia 

 Michaux. Large-toothed Aspen!). 



Dr. Schneck measured a tree of this species which was 97 feet high 



id 4| feet in circumference. 



P. tremuloides apparently does not occur in our region. 



89. (277.) JUNIPERUS VIRGINIANA, Linn te us. Red Cedar. 



A specimen growing in Saline County, 111., measured by Dr. Schneck, 

 was 75 feet high and 5 feet in circumference. 



