THE BOTANY OF SOUTH AMERICA. 16*9 



lis erectis virgatis ; foliis brevibus sub-fasciculatis, breviter 

 linearibus, obtusis, carnosulis, scabrido-pilosis, calyce 10- 

 costato, costis hirsutulis.— Banda oriental. (Tiveedie, v. s. 

 in Herd. Hooker). 



This species approaches the last, but is very different in 

 habit, being much branched, with straight virgate stems, and 

 growing to the height of 12 to 18 inches, whereas the other 

 seldom exceeds 3 to 6 inches in height, is tortuous and 

 greatly stunted. The leaves are fasciculate, much more fleshy, 

 njore scabrid, and the axils are more diffuse. The flowers 

 are covered with simple, not glandular pubescence, are much 

 larger, and the tube of the corolla is longer in proportion to 

 the calyx; the leaves are sessile, about 3 lin. long, and barely 

 a line broad ; the calyx is covered with long hairs, and is 2 

 to 3 lines long, on a peduncle of 2 lines ; the tube of the 

 corolla is 5 lines long, and the broadly campanulate border is 

 from 6 to 8 lines in diameter, and of a white colour; the 

 capsule is small and ovate. 



7. Nierembergia gracilis, Hook. Bot. Mag. tab. 3108. Sweet. 

 Fl. Gard. 2 ser. tab. \*]2 ; — caulibus strictis, erectis, her- 

 baceis, foliisque spathulato-linearibus, pubescentibus, axillis 

 superioribus alternis, inferioribus subverticillatis, internodiis 

 brevibus ; floribus in ramulis junioribus terminalibus, ca- 

 lyce tubuloso 10-costato, inter costas membranaceo, laci- 

 niis linearibus, obtusis, corollse tubo calyce multo longiori, 

 limbi campanulati lobis rotundatis. — Bonaria et Prov. 

 Argent. (Pampas.) v. s. in Herb. Hooker. 

 This is a far more erect and slender species than N. hippo- 

 manica, its stems being of a less woody texture : its leaves 

 are not fasciculate as in the two preceding species, but are 

 simple, very linear, about 7 lines long, and 1 line broad, 

 sometimes smaller. It is a well known plant in our gardens, 

 ^nere, however, its habit is still more slender, its stems 

 Weaker, and more prostrate than in its native growth. 

 8 - Nierembergia filicaulis, Lindl. Bot. Reg. tab. 1649. Bot. 

 Mag. tab. 3370. Sweet. Fl. Gard. 2 ser. tab. 243 ;— caule 

 herbaceo, erecto, filiformi, ramulis subflexuosis foliisque 

 v ol. v. o 



