30 University of California Publications in Botany [Vol. 5 



ascending to nearly horizontal as anthesis proceeds. While they 

 are open in the daytime as well as at night their perfume is 

 faint until after nightfall. The ripened capsules are erect. The 

 leaves are elliptical to spatulate-oblong with a broad clasping 

 and slightly decurrent base. They are coarsely rugose. 



LIST OF PAPEES REFEREED TO 



Agardh, C. A. 



1819. Nagra Orel om Tobaks Odligens Forbiittring. 

 Anastasia, G. Emilio 



1906. Le Varieta Tipiehe della Nicotiana Tabacum L. 

 Andre, Ed. 



1888. Revue Hortieole, p. 511. 

 Clusius, Carolus 



1605. Exotieorum Libri Decern. 

 Comes, O. 



1895. Sulla Sistemazione Botanica delle Specie e delle Razze del Genere 

 Nicotiana, Atti del R. Institute- d' Incoraggiamento di Napoli, 

 vol. 8. 



1899. Monographic du genre Nicotiana comprenant le classement 



botanique des tabacs industriels, Atti del R. Instituto d' 

 Incoraggiamento di Napoli, ser. V, vol. 1. 



1900. Historie, geographie, statistique du tabac, etc. 



1905. Delle Razze dei Tabacehi Filogenesi, Qualita ed Uso, Atti del 

 R. Instituto d' Incoraggiamento di Napoli, vol. 57. 

 Don, George 



1838. A General History of the Dichlamydeous Plants, vol. iv, Corol- 

 li florae. 

 Douglas, David. 



1836. A sketch of a Journey to the Northwestern parts of the Con- 

 tinent of North America during the years 1824, 5, 6, and 7, 

 in W. J. Hooker 's Companion to the Botanical Magazine, vol. 2. 

 Dunal, Michel Felix 



1852. Solanaceae, in A. de Candolle, Prodromus Systematis Naturalis 

 Regni Vegetabilis, vol. xiii, 1 : pp. 1-690. 

 East, E. M. 



1912. A Study of Hybrids between Nicotiana Bigelovii and N. quad- 

 rivalvis, Botan. Gazette, vol. 53. 

 Fischer, F. E. L. et Meyer, C. A. 



1846. Sertum Petropolitanum. 

 Gray, Asa 



1876. Gamopetalae, in Botany of Geol. Survey California, vol. 1. 

 1886. Synoptical Flora of North America. 

 Hasselbring, Heinrich 



1912. Types of Cuban Tobacco. Botan. Gazette, vol. 53. 



