Collinsonia LABIATAE— SOLANACEAE Solanum 



CoUinsonia L. Horse Balm. 



C. canadensis L. Stone Root. 



Common in rich rocky woods of the Piedmont; local on the 

 Coastal Plain southward to Talbot County (Earle). July to mid- 

 Sept. 



Perilla L. 



P. frutescens (L.) Britton var. crispa (Benth.) Deane. 



Frequent and rapidly spreading in the Piedmont; rare on the 

 Coastal Plain: Moore's Pond, 4 mi. s. e. of Laurel (S), R. R. Tatnall, 

 4104, 12 Oct. 1938 (T, A) ; edge of woods, 2 mi. s. s. e. of Longwoods 

 (Ta), Earle, 3501, 1 Sept. 1941 (P, A). Aug., mid-Sept. Nat. 

 from eastern Asia. 



SOLANACEAE (Nightshade Family) 

 Solanum L. Potato. 

 S. Dulcamara L. Bittersweet. 



Infrequent, in hedges and low ground, northern New Castle 

 County. Mid-June, mid-July. Nat. from Europe. 



S. nigrum L. Common Nightshade. 



Frequent in fields, salt marshes and waste ground, throughout. 

 Late June to Sept. 



S. carolinense L. Horse Nettle. 



Frequent in fields and waste ground. Piedmont province, and 



southward on the Coastal Plain at least to Talbot County (Earle). 



Late June to mid- Aug. , v v ,,. ^ - 



I- ' i 



S. sisymbriifolium Lam. 



Waif on waste ground near 7th Street bridge, Wilmington, 



Commons, 27 Oct. 1898 (A, D). Adv. from tropical America. 



S. rostratum Dunal. 



Waif along the Penna. Railroad at Shellpot bridge, Wilmington, 

 Commons, 7 Sept. 1897 (A). Introd. from mid- western U. S. 



S. citruUifolium A. Br. 



A rare weed: Seventh Street near Clayton Street, Wilmington, 

 Edna Thomas, in 1893 and 1894 (D) ; a single plant in a vacant lot 

 at 7th & Rodney Streets, Wilmington, R. R. Tatnall, 13 Oct. 1921 

 (T). Adv. from central U. S. 



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