Lactuca COMPOSITAE Lactuca 



Lactuca L. Lettuce. 

 L. Scariola L. 



Occasional in dry, open ground: vacant lot, Wilmington, R. R. 

 Tatnall, 1485, 19 July 1932 (T) ; roadside 4 mi. n. w. of Easton (Ta), 

 Earle, 2293, 3 Sept. 1939 (P). Adv. from Europe. 



Var. integrata Gren. & Godr. 



Infrequent, in waste places about Wilmington and Mar- 

 shallton (NC). Late June to Sept. Nat. from Europe. 



L. saligna L. 



Rare: on serpentine soil at roadside, 14 mi- e. of Mt. Cuba 

 (NC), R. R. Tatnall, 4688, 28 Sept. 1940 (T, A, P, G); roadside 4 

 mi. w. n. w. of Easton (Ta), Earle, 2297, 3 Sept. 1939 (P). Adv. 

 from Europe. 



\ L. canadensis L. var. typica Wiegand. (Rhodora 22, 10. 1920.) 



Infrequent in fields and on roadsides, chiefly of the Piedmont. 

 Late June into Aug. ^.wc-t-i- y ^ i ^^L 



Var. latifolia O. Ktze. 



Frequent, in fields, woods and dry, open sandy places, 

 practically throughout our area. 



Var. integrifolia (Bigel.) Gray. (L. sagittifoUa Ell.) 



Infrequent; roadsides and waste places, from the Pennsyl- 

 vania boundary to Accomac County. Late June to early Sept. 



L. villosa Jacq. 



Infrequent, on wooded slopes in the Piedmont area; less common 

 in sandy soil of the Coastal Plain : shore of White Swan Lake, 2 m. 

 s. e. of Chesapeake City (Ce), R. R. Tatnall, 3480, 14 Aug. 1937 

 (T); Woodland Beach (K), H. R. Baker, 29 Aug. 1932 (UD). 

 Aug., early Sept. 



L. floridana (L.) Gaertn. 



Frequent in rich soil of the Piedmont; less common in sandy 

 woods of the Coastal Plain southward to Sussex and Talbot Coun- 

 ties; one station in northern Accomac County: woods 1^ mi. e. of 

 Wattsville, R. R. Tatnall, 4348, 10 Aug. 1939 (T). Late July to 

 early Sept. 



[282] 



