SOUTH AMERICAN PLANTS. 93 
6. Nierembergia ericoides (n. sp.)—caule adscendente, ramu- 
lis erectis virgatis; foliis brevibus sub-fasciculatis, breviter 
linearibus, obtusis, carnosulis, scabrido-pilosis, calyce 10- 
costato, costis hirsutulis.—Banda oriental. (Tweedie, v. s. 
in Herb. 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, 
more 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. 
Fi. Gard. 2 ser. tab. 172 ;—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, corollz 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, 
where, 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 
