FAMILIES OF FLOWERING PLANTS. 253 
lies, we are ready to recognize the beautiful natural relationships to be 
found in botany as in other branches of biology. If these somewhat 
discursive papers have proved serviceable in making the flowering-plant 
relationships more clear, the author feels that his work has fulfilled its 
mission. 
Exc. 225. The water marigold, an aquatic Bidens (B. Beckit). After 
Britton and Brown, IlL Fl. Northeast. U.S. 
¥1¢. 226. Bachelor’s-button (Centaurea Cyanus). After Britton and Brown, 
Ill, Fl. Northeast. U.S. 
THE END. 
