146 Nightshade (Solanacecz). [No. 19 



Found, from Ohio to Minnesota and Texas, most frequently 

 on plants of the Compositae Family. 



The mass of knotted flowers, bracts, and stems often 

 forms ropes one half to three quarters of an inch in thick- 

 ness. 



(9) Flax-Dodder. [C. epi'linnm, Weihe.} 



This species, with the next, differs from all the others 

 especially in these two items : 

 Stigmas, elongated. 

 Fruit, splitting when ripe. 



The stamens are not exserted. 



The species has been introduced from Europe where it 

 is exceedingly hurtful in the flax-fields. It is occasionally 

 found in the flax-fields of the northern States. June. 



(10) Thyme-Dodder. \C. eptihymum, Murr.} 



This species, with the preceding, differs from all others 

 especially in these two items : 



Stigmas, elongated. 

 Fruit, splitting when ripe. 

 The stamens are exserted. 



The species has been introduced from Europe, and is 

 occasionally found in beds of clover. 



No. 19. Family SOLANACE^. (Nightshade Fam.) 

 (i) Genus SOLANUM, Tourn. 



The Irish Potato, Egg-Plant, Tomato, etc., belong to this very large genus. 



Fig. 70. Woody Nightshade. Bitter-Sweet. [S. dulcamara, Z.] 

 Flowers, purple or blue in small drooping clusters along 

 the sides of the stems. Corolla, five-parted, wheel- 

 shaped, with two greenish-white spots at the base of 



