THE BOTANY OF SOUTH AMERICA. 177 



Species dubia. 



19. Nierembergia ? nana. Nicotiana nana, Lindl. Hort. 

 Trans. 6, 92. Bot. Reg. tab. 833.— Planta acaulis, ceespi- 

 tosa; foliis confertis, lanceolatis, longe spathulatis, pilosis, 

 floribus multo longioribus; pedunculis 1 floribus, calyce 

 turbinate, glutinoso-piloso, lobis obtusis, corollae tubo 

 calyce 2-plo longiori, pilosulo. — Oregon, Rocky Mountains, 

 v. s. in Herb. Hook. 



This plant in no way resembles any species of Nicotiana, 

 and as stated by Dr. Lindley, it is difficult to account for its 

 having been confounded, with N. multivalvis ; in habit it 

 greatly resembles the four first species of Nierembergia above 

 enumerated, but a better knowledge of the structure of its 

 flower, is wanting to point out its true position. The only 

 specimen I have seen, exists in the herbarium of Sir Wm. 

 Hooker, and that is entirely destitute of inflorescence. 



Vestia. 



This genus consists only of a single well-known species, 



long since described by many authors, and figured in the 



h lora Peruviana, under the name of Periphragmos fcetidus. 



* And, however, many of these recorded features at variance 



with what I have seen, more especially in the figure alluded 



to, where the structure of the capsule and the seed, is very 



inaccurately given. The following is an outline of its generic 



character, according to my own observations. 



Vestia Wild. (Char, emendat.) — Calyx campanulato-tubu- 



losus, breviter 5-dentatus, dentibus apiculatis, demum 



auctus et capsulam suffulciens. Corolla hypogyna, infun- 



dibuliformi-tubulosa, basi demum circumscissa, limbi 5-fidi 



lobis eequalibus ovatis, aestivatione conduplicatis. Stamina 



5 j paulo supra basin in contractionera corollre adnata, ex- 



serta ; filamenta e glandula^ crassa dense barbata orta, 



