PINK 



The pretty flowers at once suggest the morning-glory, to which 

 they are closely allied. 



The common European bindweed, C. arvensis, has white or 

 pinkish flowers, without bracts beneath the calyx, and a low pro- 

 cumbent or twining stem. It has taken possession of many of 

 our old fields, where it spreads extensively and proves trouble- 

 some to farmers. 



CLAMMY CUPHEA. WAX-WEED. 



Cuphea viscosissima. Loosestrife Family. 



Stem. Sticky; hairy; branching. Leaves. Usually opposite; roundec 

 lance-shaped. Flowers. Deep purplish pink ; solitary or in racemes. 

 Calyx. Tubular, slightly spurred at the base on the upper side, six- 

 toothed at the apex, usually with a slight projection between each tooth. 

 Corolla. Small; of six unequal petals. Stamens. Eleven or twelve, of 

 unequal sizes, in two sets. Pistil. One, with a two-lobed stigma. 



In the dry fields and along the roadsides of late summer this 

 plant is found in blossom. Its rather wrinkled purplish-pink 

 petals and unequal stamens suggest the flowers of the spiked 

 loosestrife, L. Salic aria, to which it is closely related. 



HEMP NETTLE. 



Galeopsis Tetrahit. Mint Family. 



Stem. Bristly-hairy; swollen below the joints; branching. Leaves. 

 Opposite ; pinkish ; oval ; coarsely toothed. Flowers. Small ; pink or 

 variegated ; in whorls in the axils of the leaves. Calyx. Five-toothed ; 

 the teeth spiny-tipped. Corolla. Two-lipped; the lower lip three-cleft; 

 spreading ; sometimes yellowish with a purple spot. Stamens. Four. 

 Pistil. One, with two-lobed style. Ovary. Deeply four-lobed. 



Somewhat late in summer the hemp nettle overruns waste 

 places near civilization, this plant being one of our emigrants 

 from Europe. 



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