62 University of Texas Bulletin 



CONVOLVULACEAE Morning Glory Family 



Breweria Pickeringii A. Gray. 

 Not abundant here. 

 Southeastern States. 



Convolvulus hermannioides A. Gray. Bindweed. 



Abundant in dry, open ground. University campus, etc. 

 Texas plains and prairies. 



Convolvulus incanus Vahl. Bindweed. 

 Common in open, dry ground. 

 Southern plains states. 



Evolvulus pilosus Nutt. (E. argentus Pursh.) 

 Dry hills of the Edwards Plateau. 

 Plains states to Mexico. 



Evolvulus sericeus Sw. 



Open ground. University campus. 



Gulf states to Arizona and in tropical America. 



Ipomoea trifida G. Den. var. Torreyana Gray. Morning Glory. 



Abundant in flood plains and roadsides. Our common pink morn- 

 ing glory. 



Texas, Mexico and tropical America. 



CUSCUTACEAE Dodder Family. (Under CONVOLVULACEAE) 



Cuscuta arvensis Beyrich. Dodder. Love Vine. 



Abundant along the shores of Barton Creek. A slender parasitic 

 vine with yellow stems, twining around weeds and often forming 

 dense mats. 



Widespread in North America. 



Cuscuta Gronovii Willd. Dodder, Love Vine. 

 Along the shore of Barton Creek. 

 Widespread in Eastern North America. 



HYDROLEACEAE Water-leaf Family 



Marilaunidium Jamaicense Kuntze. (Nama Jamaicense L.) 

 Abundant in rich soil. Flood plains, roadsides, etc. 

 Gulf states, West Indies, and Mexico. 



Marilaunidium hispidum Kuntze. (Nama hispida Gray.) 

 Abundant on the river flood plain. 

 Texas to Arizona. 



