SOUTH AMERICAN PLANTS. 91 
curvato, tubuloso, pulverulento-tomentoso, laciniis obtusis. 
— Nova Granada, ad Santa Fe de Bogota et Loxam; altit. 
6-8000 ped. v. s. in Herb. Hook. (Bogota, Goudot.) 
The leaves are nearly glabrous, or slightly ciliolate, the 
blade elliptic, 6 lines long, 3 lines broad, on a petiole of 6 
lines. The calyx is 4 lines long, the tube of the corolla 8 lines 
long, the border being more tubular and narrower in the 
mouth than the former species, and much less in diameter. 
3. Nierembergia calycina, Hook. Bot. Mag. tab. 3371.—caule 
repente, filiformi, ramulis procumbentibus, foliisque alternis 
v. geminis, obovatis, petiolatis, hirto-pubescentibus, pilis 
canis divaricatis ; pedunculis solitariis, brevibus, extra-axil- 
laribus; calyce magno, tubuloso-campanulato, laciniis obo- 
vatis, foliaceis, expansis; corolle tubo longissimo.—In 
Andibus, prope Mendozam. v. s. in Herb. Hooker. 
This species is very distinct from the two former, the axils 
are more distant, the leaves generally in pairs, obovate, sud- 
denly acuminate at each end, 9 lines long, 5-6 lines broad, on 
ashort petiole of 2 lines, they are hirsutulate, with long, white, 
spreading, adpressed hairs ; the peduncles 9 to 11 lines long; 
the calyx about 9 lines long, is tubular at base, for the length 
of 3 lines, the lobes being broad, foliaceous, obovato-spathu- 
late, slightly apiculate, with a row of long spreading hairs on 
each side of the mid-rib; the tube of the corolla is extremely 
slender, 2 inches long, the border broadly campanulate, 14 in. 
diameter, with 5 founded lobes, the throat and tube being of 
a yellowish hue. 
4, Nierembergia rivularis (n. sp.)—caule repente, filiformi, 
ramulis procumbentibus, foliisque longissime petiolatis, 
spathulato-ovatis glabris; floribus solitariis subsessilibus, 
oppositifoliis ; calyce curvato, laciniis oblongis, subobtusis, 
erectis; corolle tubo valde elongato, glabro.— Buenos 
Ayres. v. 0. - 
I found this plant on the grassy banks of the Rio de la 
Plata, the prostrate branches creeping among the grass, above 
which rise its pretty white flowers. The leaves are alternate, 
more rarely geminate, quite glabrous, the blade is from 9 to 
n 2 
