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species, tobacco-culture having extended from Washington and 

 southern Canada to Chile. At present 8 species appear to be 

 used by Indians : 



1. Nicotiana Tabaciim. This, the one species now commer- 

 cially cultivated, was originally grown throughout eastern South 

 America and northward to Mexico. It has formed a large num- 

 ber of varieties. 



2. Nicotiana rustic a. This species was cultivated extensively 

 throughout North America east of the Great Plains and western 

 highlands. It was early carried to the Old World, and is still 

 cultivated there in the Levant and Persia. The species, like some 

 others of the genus, is unknown wild, but must be of American 

 origin. 



3. Nicotiana Bigclovii. Probably used by Indians in California. 



4. Nicotiana nmltivalvis. Used by Indians in the region of the 

 Columbia River. A cultivated and quite unusual species, as is 

 shown by the capsule being many-celled instead of two-celled. 



5. Nicotiana quadrivalvis. A relative of the Pacific coast 

 Bigclovii and multivalvis, but occurring east of the Rockies along 

 the valley of the upper Missouri. Also an unusual species with 

 a several-celled capsule. Doubtless of Pacific origin and carried 

 eastward along old routes of Indian trade. 



6. Nicotiana attenuata. The species used by the Indians of 

 the Great Plains from Saskatchewan to Texas. 



7. Nicotiana Clevelandii. A species of southern California, 

 probably used by the Indians. 



8. Nicotiana trigonophylla. A species occurring from western 

 Texas to southern California, and used probably at least by the 

 Apache Indians. 



Beside discussing the relationship and distribution of these 

 species, the speaker gave many historical details, touching upon 

 Indian customs. He was emphatic in stating that, both from cul- 

 tural as from purely botanical premises, the genus Nicotiana, ex- 

 cepting two unique endemic species of Australia, is wholly of 

 American origin. The wide extent of its use, the number of 

 species domesticated, and the occurrence of some which appear 



