FRUITS OF TREE-DATURAS OF SOUTH AMERICA 



No. 4, typical form of D. arborea L., with entire leaves, and spheroid fruit; No. 3, the Datura 

 arbor ea L. variety with larger flowers and leaves remotely toothed instead of entire; No. 2 D. 

 pittieri Safford, a fruit quite devoid of vestiges of the calyx; No. 1, D. sangianea R. & P. a fruit 

 enveloped in persistent husk-like calyx. (Fig. 16.) 



