1912] Setchell: Studies in Nicotiana 25 



represented. The large swollen based hairs are most charac- 

 teristic and constitute a mark of identification. They are usually 

 very conspicuous upon the calyx. The plant bears a certain 

 fairly close but superficial resemblance to the last (N. acumin- 

 ata), especially to the smallest flowered varieties. It differs from 

 it in the swollen-based glands just mentioned, in the lower 

 leaves never being so broadly ovate or even cordate at the base, 

 and in the shorter, stouter tube of the corolla. The leaves are 

 petioled and lanceolate or ovate-lanceolate and the lobes of the 

 limb of the corolla are broad and shallow, but not emarginate. 

 It has never been cultivated to any extent and does not grow 

 well in the adobe soil of the U. C. B. G. Two numbers, viz. r 



78. 46 



U. C. B. G. 09 and 11, have been grown with fair success. 

 Both numbers are from plants used by Indians for smoking, 

 the former from seed from Oregon, the latter from seed from 

 British Columbia. It seems to have been smoked by the Indians 

 throughout its range to some extent, at least wherever it was 

 the chief or only species of Nicotiana to be obtained. In the 

 northern part of its present range it was undoubtedly intro- 

 duced by the Indians. 



Nicotiana Bigelovii (Torr.) Watson. 



One of the most interesting of all the Nicotiana species cul- 

 tivated in the U. C. B. G. is this species of California and, to 

 some extent perhaps, of adjacent states. It has been cultivated 

 in various forms and under various numbers in the U. C. B. G. 

 since 1905, these latter years in pure lines. I do not think that 

 it has been successfully cultivated elsewhere to any extent (ef. 

 however Comes, 1899, p. 43 and East, 1912) and the only time 

 I saw the name was in the seed-list of a botanical garden. I 

 obtained some of the seed but the plants proved to be N. longi- 

 flora. It does not grow readily or uniformly in the U. C. B. G., 

 but it has always given some results and these have been of such 

 interest that I expect to give them more in detail later. 



What passes for the type of Nicotiana Bigelovii is a large 

 and tall, coarse plant with large white or purplish (outside) 

 corollas which are five-lobed. The leaves are sessile and usually 



