Shafer : Vascular Flora of Allegheny County. 81 



* I. purpurea (Linnaeus). Morning-glory. 



Often escaped to waste places. 



* I. pandurata (Linnaeus). Wild potato vine. 



CONVOLVULUS Linnaeus. 



* C. spithamaeus Linnaeus. Upright bindweed. 



* C. sepium Linnaeus. Great bindweed. 



* C. Japonicus Thunberg. Double morning-glory. 



The double form occasionally escaped. 



II C. arvensis Linnaeus. Small bindweed. 



CUSCUTACE^ Dumortier. 



DODDER FAMILY. V-20. 



CUSCUTA Linnc-eus. 



* C. Gronovii Willdenow. Gronovius' dodder. 



SOLANACE.^ Persoon. 



NIGHTSHADE FAMILY. V-26. 



SOLANUM Linnaeus. 



* S. Dulcamara Linnaeus. Bittersweet. 



Allegheny, Highwood Cemetery, in woods. John Ferguson. 



* S. nigrum Linnaeus. Black nightshade. 



* S. Carolinense Linnaeus. Horse-nettle. 



PHYSALIS Linnceus. 



* ? P. Philadelphica Lamarck. Philadelphia ground-cherry. 



