VARIETIES OF DATURA STRAMONIUM L. 



No 1 shows the leaves and fruit of the purple flowered form with armed capsules, usually 

 called D. tattila; No. 2, leaves and fruit of the green-stemmed, white-flowered form with armed 

 capsules, the tvpical form of the species; No. 3, purple flowered forms with armed and unarmed 

 capsules- and No. 4, the white-flowered form with unarmed capsules, Datura tnermts Jacq. 1 hese 

 forms are admirably adapted as material for the study of heredity and mutations as they readily 

 lend themselves to experiments in cross-pollination. , . ,, r^ t- j-..- 



In one of the recent press dispatches sent by the leader of the Mount Everest Expedition 

 there was this description: "Bv the roadside were most marvelous hedges of daturas, 15 to 20 

 feet high, and covered with hundreds of enormous white trumpet-shaped blooms each eight inches 

 in diameter and fully 12 inches in length. At night they seem to gleam with a kind ot phos- 

 phorescence emitting a strangely sweet scent." (Fig. 13.) 



