10 University of California Publications in Botany [Vol. 5 



designation for the present. It is not N. angustifolia Ruiz & 

 Pavon, however. 



68 



N. angustifolia, or U. C. B. G. 07, is a comparatively low 

 plant, about three feet in height as a rule, of decidedly corym- 

 bose habit, i.e., the main axis is of limited growth in height and 

 is soon equalled or even overtopped by several (or all) of the 

 laterals. A young plant is represented in the photograph repro- 

 duced in plate 7. The leaves are distinctly petioled and the 

 petiole is naked, at least in the lower half or third. The blade 

 of the leaf is obliquely ovate-lanceolate, tapering gradually into 

 a long, laterally curved point. The base of the blade is broadly 

 rounded and is decurrent along the upper half (or even two- 

 thirds) of the petiole as a narrow wing. The blade is more 

 or less conduplicate. The upper leaves are shorter-petioled, nar- 

 rower, and shorter-pointed than the lower, while the upper- 

 most are often reduced to very narrow linear shapes. The 

 petiole is provided with two sharp angles at the junction of 

 the upper (almost flat) and the lower (very convex) surfaces. 

 There are no auricles at the base of the petiole. The panicle 

 is crowded with slender flowers. The calyx is narrow and with 

 long slender lobes. The tube of the corolla is slender below, 

 expanding gradually and not considerably, into a narrow infundi- 

 bulum. The tube of the corolla in N. angustifolia is the most 

 slender, especially as to the infundibulum, of any of the N. 

 Tabacum group. The limb is very light pink and deeply divided 

 into narrow lobes which are broader below but above are abruptly 



narrowed into long, slender lanceolate tips. 



68 

 In habit U. C. B. G. 07, or N. angustifolia as we mav call 



.22 

 it, is near to U. C. B. G. 07, being more slender, but in its 



petioled leaves, its crowded panicle, its slender flowers with 



narrowly and deeply lobed limb, it is most distinct from all 



others of the Tabacum-group under cultivation at present in 



the U. C. B. G. 



Nicotiana Tabacum var. macrophylla purpurea 



U. C. B. G. 06 was received from the Missouri Botanical 

 Garden in 1906 under the name of Nicotiana sanguinea. It is 



