PULSE FAMILY. Leguminosse. 



This is one of our most charniina: so- 

 Blue Lupine „ 1 , , ., . ^ , . . ,. 

 Lupinus called blue wild flowers ; but it rings all 



perennis the changes on violet and purple, and 



Violet scarcely touches blue. The pealike blos- 



May-June g^j-^ j-^^^g violet or deep purple wings and 



a light violet hood veined with blue-violet. Rarely the 



sweet-scented flowers are magenta-pink or even white. 



The horse-chestnutlike leaf has generally eight narrow, 



light green leaflets. Stem and long-stalked leaves are 



generally flne-hairy, and frequently show a few touches 



of purple-red through the green. The flower-spike is 



quite showy, and pinkish early in the bud. Fertilized 



by bees. 1-2 feet high. In sandy fields everywhere. 



A naturalized species of clover, origi- 

 Rabbit=foot or ^ i ui * ^^ 



Stone Clover ^^Hj fiom Europe, remarkable for its 

 Trifoiium oblong fuzzy flower-heads, the corolla of 



arvensi.' which is green-white and the calyx green 



Qray=pink with pink tips, all in effect rather gray- 



Seotember pink. The light green triple leaves have 

 narrow, long leaflets with blunt tips. The 

 flowers are sweet-scented. 4-10 inches high. Common 

 in poor soil, old fields, and pastures, everywhere. 



This is our commonest field clover and a 

 Trifoiium special favorite of the bumblebee upon 



pruteuse whom it is almost wholly dependent for 



Crimson or fertilization. The plant was introduced 

 magenta ^^^ Australia some years ago and failed 



May-Septem= ^ . wi « ^ ^i i -^ 



Ijgj, to produce seed the first year through its 



separation from the American bumblebee. 

 Later when the insect was transported the plants flour- 

 ished from season to season. The three (rarely 4-5) 

 rather soft, dull bluish green leaflets are conspicuously 

 marked by a whitish or j-ellow-green triangle. There 

 are two hairy white and green stipules or leafy wings at 

 the base of the leaf-stalk. Stem and leaves are soft- 

 hairy. The somewhat pyramidal globular flow-er-head 

 ranges through crimson or magenta to paler tints of the 

 same colors, and even white ; it jaelds a plentiful supply 

 of nectar, which is scarcely reached by the short tongues 

 of honeybees ; also, the butterflies are not sufficiently 

 heavy to depress the keel of the floiet and thus expose 



210 



