i8 4 



Acerates lanugiiiosa, (Nutt.) Dec. Woolly Milkweed. 

 On prairies in the Sioux valley; rare. 



CONVOLVULACE^E. Morniug Glory Family. 



Evolvulus pilosus, Nutt. Evolvulus. In dry plains west 

 of the Missouri river and in the Black Hills. 



Quamoclit coccinea hederifolia. Small Red Morning 

 Glory. 



Introduced in gardens near Brookings. 



I pmmra leptophylla, Torr. Bush Morning Glory. 



In dry soils from the Missouri river to the Black Hills. 



I ponnra hederacese, Jacq. Ivy-leaved Morning Glory. 



A bad weed in fields in the Sioux valley near Brookings. 



Convolvulus sepiuin, L. Hedge Bindweed. 



In thickets from the Missouri valley eastward and in 

 the Black Hills. 



Convolvulus repeiis, L. Trailing Bindweed. 



In cultivated and waste fields from the Missouri valley 

 eastward. 



CuscuTACE^E. Dodder Family. 



Cuscuta Epithymum, Murr. Clover Dodder. 



On alfalfa in the Sioux valley in Brookings and Clark 

 counties, and in the Black Hills. An introduced paras- 

 ite, doing considerable damage to alfalfa wherever it 

 occurs in quantity. 



Cuscuta arvensis, Beyrich. Field Dodder. 



On various large herbs in the Minnesota valley and in 

 the Black Hills. 



Cuscuta coryli, Engelm. Hazel Dodder. 

 Cuscuta inflexa, Engelm. 



On large herbs throughout the state. 

 Cuscuta Gronovii, Willd. Gronovi's Dodder. 



In the Sioux and Minnesota valleys; common. 



