PETTY SPURGE (Euphorbia peplus L.). 



1. Flower, showing the cup-shaped involucre (Cyathiuml, terminated by the four horn-shaped glands, 

 and a maturing pistillate flower to the left. 2. Flower with front of the involucre removed, 



exhibiting stamens, scales, &c. 3. Fruit, dividing into three carpels. 4. Seeds, showing 



depressed dots. 



