SOUTH AMERICAN PLANTS. 95 
cile filiformibus: foliis spathulato linearibus, obtusiusculis, 
calloso-mucronatis, calyce urceolato tubuloso, 10-costato, 
inter costas membranaceis, laciniis zequalibus lanceolato- 
acuminatis, calloso-aristatis, subpatulis; corolle tubo 
gracili, glanduloso-pubescenti, limbo late campanulato, 
lobis amplis rotundatis; capsula ovata, calyce aucta in- 
clusa.—Provincias Argentinas. Uv. v. 
I met with this species at Encrucijada, in the Province of 
San Luiz, and in Buenos Ayres, in which last place it was 
also found by Tweedie, from whom the seeds cultivated in Eng- 
land were obtained ; from the former locality, the branches 
are stronger, and more ligneous ; but shorter, more branched, 
and more herbaceous from the latter. The leaves are 8 tol 
inch long, 1 line broad, almost glabrous, the internodes mea- 
suring 4 lines: the peduncle is of the length of the axil, 
4 lines, opposite the leaf, and flexuosely divaricate with the 
stem, which is, however, quite straight below; the calyx, 
almost glabrous, is 4 lines long, cleft half way down into 5 
spreading rigid lobes, the tube of the corolla is extremely 
slender, 6 lines long, the border being about § inch diameter, 
it is white, with longitudinal striated purple lines. The cap- 
sule is about 4 lines long and sub-4-valved. 
11. Nierembergia stricta, (n. sp.) — glabriuscula, caulibus 
simplicibus, lignosis, erectis, gracillimis, strictis: foliis spa- 
_ thulato-linearibus, acuminatis, calloso-mucronatis, eveniis, 
utrinque glabris, margine sub-ciliatis: pedunculis oppositi- 
foliis ; calyce 10-costato glabro, costis ciliatis, laciniis spa- 
thulato-lanceolatis, aristatis, erectis, inaqualibus, tubo 
3plo-longioribus, corolle tubo valde elongato, glanduloso- 
pubescenti, calyce 3-4plo longiori, limbo late campanulato, 
lobis brevissimis rotundatis.—Buenos Ayres, v. s. in herb. 
meo. 
- This plant may be only a variety of N. aristata, but it cer- 
tainly differs from it in having very slender simple stems 
with more distant internodes, and only 1 or 2 terminal 
flowers; its calyx has shorter, broader, and more erect seg- 
ments, and the corolla is larger, with a far more elongated 
