SETCHELL] ABORIGINAL TOBACCOS 403 



nistica, on being grown. In the fifth place, and finally in the evi 

 dence, there occur spontaneous plants of Nicotiana nistica in various 

 parts of these general areas, which seem to be remnants of earlier 

 Indian cultivation. Possibly some of these which have been collected 

 and recorded may have been ballast weeds or escapes from cultivation 

 more recent than that of the Indians, but some of them seem fairly 

 certainly to be relics of aboriginal culture. Such possible remnants of 

 Indian cultivation are credited to Connecticut, New York, Wisconsin, 

 Illinois, Minnesota, and Texas, in other words indicating an aboriginal 

 cultivation of Nicotiana nistica extending well over the general areas 

 to which I have assigned it. These facts, together with the general 

 plausibility of the supposition, have led me to map out the areas of 

 aboriginal culture for this species as I have indicated above. 



The third section of the genus Nicotiana is called the Petunioides- 

 section whose corollas are typically salverform and whose color is 

 white, although often tinged with green, red, or purple. About 

 twelve species or well-marked varieties of this section occur within 

 the confines of North America or the adjacent islands, but only seven 

 of them are at all definitely known to me as having been used by the 

 Indians. There is a most interesting group of five species and 

 varieties centering about Nicotiana Bigelovii (Torr.) Watson and one 

 very widespread species Nicotiana attenuata Torr. The five species 

 of this section of the genus which are not as yet known to have been 

 in use by the Indians are the following: Nicotiana acuminata var. 

 parviflora Comes. ?, in central California; A r . Clevelandii Gray, in 

 southwestern California, possibly used by the Santa Barbara and 

 other tribes of coast Indians; N. repanda Willd., in southwestern 

 Texas and adjacent portions of Mexico; N. plumb agini folia Viv., in 

 northeastern Mexico and crossing the Rio Grande into Texas; and 

 N. Stocktoni Brandegee, on Guadalupe Island off the coast of Lower 

 California. 



The Nicotiana Bigelovii-group consists of three very well marked 

 varieties of N. Bigelovii (Torr.) Watson, N. quadrivalvis Pursh, and 

 N. multivalvis Landl. There is such a close resemblance in so many 

 details of habit and structure that it certainly seems probable that the 

 five distinct genetic entities of the Bigelovii-group must have.origi- 



