46 SILVA OF NORTH AMERICA. ROSACEA, 
prairie and on hillsides in clay soils in Short and Peoria counties, linois, where it was discovered in 
September, 1897, by Mr. Virginius H. Chase.’ 
1 Virginius Heber Chase (January 8, 1876), a great-grandson of been a telegraph operator since 1893, devoting his spare time 
Philander Chase, the first Episcopal bishop of Ohio and Illinois to good advantage in studying the plants of central Illinois, where 
and the founder of Kenyon College, Ohio, and of Jubilee College, he has discovered and distinguished three interesting species of 
Jubilee, Illinois, was born at Wady Petra, Llinois, where he has Crategus. 
EXPLANATION OF THE PLATE. 
PuiaTE DCXL. Crataeus PEORIENSIS. 
1. 
. Vertical section of a flower, enlarged. 
Oo Oo FP W b 
A flowering branch, natural size. 
. A fruiting branch, natural size. 
. A fruit divided transversely, enlarged. 
. A nutlet, front view, enlarged. 
. A nutlet, rear view, enlarged. 
