472 THE PLANT LIFE OF MARYLAND 



Acerates viridiflora (Raf.) Eaton. Green Milkweed. 



Washington County, Hancock (688). 



Vincetoxicum hirsutum (Michx.) Britton. 



Charles County, Port Tobacco (M. A. Chrysler). 



Vincetoxicum shortii CA. Gray) Britton. 



Allegany County, Cumberland (George M. Perdew). 



CONVOLVULACEAE. 



Quamoclit coccinea (L.) Moench. Red Morning-glory. 



Throughout the state; in thickets and open situations; frequent. 



Ipomoea lacunosa L. White Morning-glory. 



Throughout the state; in dry fields and open situations; common. 



Ipomoea purpurea (L.) Roth. Common Morning-glory. 



Throughout the state; in cultivated grounds; common. Introduced from 

 South America. 



Ipomoea hederacea Jacq. Ivy-leaved Morning-glory. 



Throughout the state; in fields and waste situations; common. Intro- 

 duced from South America. 



Convolvulus arvensis L. Bindweed. 



Throughout the state; in cultivated grounds and waste places; common. 

 Introduced from Europe. 



CUSCUTACEAE. 



Cuscuta epithymum Murr. 



Midland Zone; parasitic on clover. 



Baltimore County, near Towson (Robert K. Miller). 



Cuscuta arvensis Beyrich. Dodder. 



Throughout the state; parasitic on various flowering -plants. 

 Cecil County, Elkton (381). 



Cuscuta gronovii Willd. 



Throughout the state; parasitic on flowering plants. 

 Allegany County, Cumberland (971). 



Cuscuta compacta Juss. 



Prince George's County, Hyattsville (Joseph H. Painter). 



Cuscuta polygonorum Engelm. Smartweed Dodder. 



Coastal Zone. 



POLEMONIACEAE. 



Phlox paniculata L. Garden Phlox. 



Midland Zone; in waste situations; a frequent escape from gardens. 



Phlox maculata L. Wild Sweet-William. 



Baltimore County, near Towson (Robert K. Miller). 



