170 CONTRIBUTIONS TO 



lineari-lanceolatis, vagis, glabris ; pedunculis oppositifoliis, 



solitariis, calycis laciniis acuminatis, corollee tubo gracili 



calyce vix longiori, filamentisque glanduloso-pubescentibus, 



limbo magno, campanulato, lilacino, fauce luteo. — Bonaria, 



v. s. in Herb. Hooker. Rio Parana, (Tweedie). Entre-Rios, 



{Tweedie) n. 284. Rio Grande do Sul (Isabelle). 



Its native place is erroneously stated in most botanical 



works, to be Mexico. The leaves are 12 to 14 lines long, 



lh line broad, somewhat spathulate at base, a little obtuse at 



summit, with rather distant internodes. The calyx is 10- 



nerved, the nervures being covered witb short pruinose 



tomentum, is 6 lines long, cleft half way down into 5 



subequal, linear, obtuse segments. The tube of the corolla 



to the extremity of the calyx is slender, above which, for 



an equal length, it swells into a broadly campanular form, 



the border about l| inch diameter, being expanded and 



divided for half its breadth into 5 subequal short rounded 



lobes ', it is slightly pubescent outside, of a lilac colour 



marked with purplish lines. 



9. Nierembergia angustifolia ; HBK. Nov. Gen. 3, 9, tab. 198 : 

 — caulibus herbaceis, ceespitosis, erectiusculis ; foliis ses- 

 silibus, lineari-lanceolatis, glabris, pedunculis oppositifoliis, 

 solitariis ; calycis laciniis longe linearibus, acutis, coroll® 

 tubo elongato, glabro, limbo campanulato, lobis brevissi- 

 mis, rotundatis. — Mexico. 



This species much resembles the last in habit, the leaves 

 8 lines long, 1 lin. broad, are spathulate at the base. The 

 peduncle is 2 lines, the calyx 5 lines, the tube being scarcely 

 more than 1 line in length, the segments narrow and spread- 

 ing ; the tube of the corolla is 6 lines long, and the white 

 campanular border, 5 lines in diameter. In the figure above 

 quoted, the filaments are represented as united into a tube, 

 and the stigma funnel-shaped, but these are probably 

 errors of the draughtsman, being quite at variance with all 

 the other species. 



10. Nierembergia aristata ; Sweet, Fl. Gard. 2 ser. tab. 255 ; 

 glabriuscula, caulibus lignosis, erectis, valde ramosis, g ra ' 



