No. 17] FLOWERING PLANTS AND FERNS 265 
Borders of fields and pastures. Bay St. Louis (Allison.) 
Allison Herb. 
Lactuca Floridana (l.) Gaert. (Mulgedium Floridanum DC.) 
Blue-flowered Wild Lettuce. 
Rich moist soil, borders of ditches and thickets throughout 
the state. Lafayette Co.; Hinds Co.; Rankin Co.; Amite Co. 
(Allison). May-June. 
Allison Herb. 
Lactuca villosa Jacq. (Mulgedium acuminatum DC.) Hairy- 
veined Blue Lettuce. 
Damp rich soil of shaded copses and thickets. Aug. 
Lactuca scariola L. Prickley Lettuce. 
Dry open banks, especially along railroad tracks. Grena- 
da; Jackson Aug.-Sept. 
NABALUS CASS. 
Nabalus serpentaria (Pursh) Hook (Prenanthes serpentaria 
Pursh). Gall of Earth. 
Light dry soil of open woods. (Wailes). Summer. 
Nabalus altissimus (L.) Hook. (Prenanthes altissima L.) 
Tall White Lettuce. : 
Rich woods and thickets. Smith and Jasper Counties 
(Hile. Ms.) ; Lafayette Co.; Tippah Co. August. 
Geol. Sury. Herb. 
Nabalus virgatus (Michx.) DC. (Prenanthes virgata Michx.) 
Slender Snake Root. 
Damp sandy soil. Lost Gap.  Sept.-Oct. 
Geol. Surv. Herb. 
SONCHUS L. Sow Thistle. 
Sonchus asper (L.) All. (S. oleraceus asper L.) Prickly Sow 
Thistle. 
Cultivated and waste ground throughout the State. Jasper 
Co. (Hilg. Ms.) ; Lafayette Co. Summer. 
Conchus oleraceus L. Common Sow Thistle. 
