24 University of California Publications in Botany [Vol. 5 



B. G.. there have been cultivated several plants which seem 

 certainly to belong to the same species. They differ from one 

 another slightly, but chiefly in the varying diameter of the limb 

 of the corolla. Comes (1899, p. 39) has described two varieties 

 based on this character and we have followed him in adopting 

 designations for our plants. The acuminata-gvou\> is to be dis- 

 tinguished from the longiflora-grouj) by having the lobes of the 

 limb of the salver-shaped corolla comparatively shallow and 

 rounded. The varieties of X. acuminata have petioled leaves, 

 whose blades are almost or quite cordate below but ovate-lance- 

 olate to narrowly lanceolate above. The plants are rather spread- 

 ing at maturity, as represented in plate 26. The seed of the 

 type of the species (apparently var. parvi flora Comes) came 

 originally from Chili (Hooker, loc. cit.). One of the varieties 

 (var. grandiflora Comes, cf. plate 26) probably originated (or 

 segregated) under cultivation, but one or more varieties occur 

 wild in California. Since the subject of N. acuminata and its 

 varieties is to be treated by T. H. Goodspeed in a paper about 

 to appear in this series, nothing further will be said about its 

 characters here. Plants belonging to this species appear in botan- 

 ical gardens under the names of N. suaveolens and of N. vincae- 

 flora, Australian plants which were at one time cultivated but 

 of which I have been unable to get reliable seed. I suspect that 

 most of the plants cultivated under these names belong to N. 

 acuminata, from which they are to be distinguished by their 

 lack of a petiole. 



Nicotiana attenuata Torr. 



This is a widespread species of Western North America, 

 extending from New Mexico, Arizona, and southern California, 

 east as far as Colorado, and north through Wyoming to southern 

 British Columbia. It grows in arid and desert localities, as 

 a slender, often decidedly bushy herb of straggling habit. It 

 is well represented by Watson (1871, pi. 26, fig. 1, 2) in his 

 figure in the Botany of King's Expedition, except that the 

 flowers seem to be sharp-lobed and funnel-shaped, while the 

 large very extremely swollen-based glandular hairs are not 



