186 MISSISSIPPI STATE GEOLOGICAL SURVEY [Bull. 
Euphorbia nutans Lag. (~. >> ~<!11 Guss.) Field Spurge. 
In fields and cultivatcd .:ounds throughout the state. Ox- 
ford: Winona; Jackson. 
Geol. Surv. Herb. 
Euphorbia corollata L. Flowering Spurge. 
Throughout the state in open ground. Lafayette Co.; 
Tishomingo Co.; Hinds Co.; Bay St. Louis (Allison). June- 
October. 
Geol. Surv. Herb. Allison Herb. 
Euphorbia corollata angustifolia Ell. Narrow-Leaf Flower- 
ing Spurge. 
Dry up:and pine woods. ‘Tishomingo Co. July-August. 
Euphorbia dictyosperma Fisch & Mey. (E. Arkansana Engelm. 
& Gray). Arkansas Spurge. 
Damp open pine lands and fields. Jackson. June. 
Geol. Surv. Herb. 
Euphorbia prostrata Ait. Prostrate Spurge. 
Sandy soil along the coast and Coastal Islands (Tracy.) 
Euphorbia marginata Pursh. Large-Flowered Spurge. 
Escaped from cultivation. Lafayette Co. June-October. 
Geol. Surv. Herb. 
CHAMAESYCES. F. Gray. 
Chameasyce Tracyii Small. 
Sandy plains (Small.) Summer. 
TITHYMALOPSIS Oel. & Gareke. 
Tithymalopsis olivacea Small (Euphorbia olivacea Small.) .._- 
Sandy soil, northern Mississippi (Small). Summer. 
Tithymalopsis apocynifolia Small. (Euphorbia apocynifolia 
Small). 
Sandy soil (Small.) Summer and fall. 
