Euphorhiacece and Urticacece. 
97 
500. *E. corollata , L. 
Dry ground. Everywhere, 
501. *E. Cyparissias, L. 
Occurring occasionally as an escape from culti¬ 
vation. 
502. *E. Peplus, L. 
Spontaneous in many lawns and gardens in Madi¬ 
son. Local. 
Acalypha, L. Three-seeded mercury. 
503. A. Caroliniana , Ell. 
Rich woods. Common. 
Urticacece. (Nettle Family.) 
Ulmus, L. Elm. 
504. fulva , Michx. Slippery or red elm. 
Occurring occasionally throughout the region. 
505. *V. Americana , L. American or white elm. 
Common, especially in low woods. 
Celtis, Tourn. Nettle-tree. Hackberry. 
506. C. occidentalism L. Sugarberry. Hackberry. 
Occasional in the older forest tracts. 
Cannabis. Tourn. Hemp. 
507. **C. sativa, L. Hemp. 
Growing along roads and about dwellings. Not 
rare. 
Humulus, L. Hop. 
508. **H. Lupulus , L. Common hop. 
Growing wild in many places. 
Urtica, Tourn. Nettle. 
509. U. gracilis , Ait. 
In low rich soil. Common. 
Pilea, Lindl. Richweed. Clearweed. 
510. P. pumila , Gray. 
In rich woods. Not rare. 
