218 
CONTRIBUTIONS TO BOTANY. 
plano-convex nucules are 4 lines long, 3 lines broad, liard and 
osseous, each with two distinct cells with foraminal aper- 
tures as above described, each cell containing an appended seed 
covered by its colourless integuments ; the embryo, enveloped 
in an extremely thin albumen, has two (sometimes three) 
equal cotyledons, which are three times the length of the 
conical superior radicle*. 
2. Cortesia microphylla, n. sp. ; — sufiruticosa, humilis, e basi 
ramosa, ramis imo toruloso-tortuosis, ramulosis, ramulis 
brevibus, subflexuosis, angulatis, divaricatis, glabrls ; foliis 
minoribus, sessilibus, imo anguste spathulatis, canaliculatis, 
apice dilatatis et 3-dentatis, dentibus acutis, mediano re- 
curvo, lateralibus arrectis, apicibus tuberculo setifero spinu- 
losis, supra subglabris, subtus tuberculis crystallinis setigeris 
exasperatis, carnosulis, enerviis, horizontaliter patentibus ; 
floribus e ramulis novellis axillaribus 2-4-foliolosis solitariis 
et semper terminalibus ; calyce hispido-pubescente, intus 
densissime sericeo, ore dentibus 10, acutis, intus planis, extus 
carinatis, mucronatis, alternis paulo brevioribus ; appendi- 
culis 10, breviuscidis, setiformibus, vUlosis, in verticillo 
coroUse basin cingentibus ; corolla membranacea, glabra, 
tubo cylindi'ico, calycem sequante, lobis oblongis, rotundatis, 
suberectis, staminibus medio tulii aflfixis, paulo exsertis ; 
stylo his longiore, ramis recurvis ; dnipa subglobosa, calyce 
ampliato lateraliter fisso semivestita. — Circa Mendozam, in 
desertam sahtrosam : v. v. 
This is a shrub of much smaller dimensions and of low - 
straggling growth, collected at a place called the “ Plumerillas,” 
in the Travesia not far from Mendoza : it is somewhat prostrate, 
with several tortuous spreading branches, from 9 inches to a 
foot long ; the younger branches are cinereous, very rough, 
and more flexuous than in the preceding species ; the leaves 
are less than half the size of those of the other species, more 
shortly cuneated, horizontally spreading ; its flowers are never 
axillary, always terminal upon short axillary branches 1 inch 
long, furnished with from two to fom’ small leaves ; the axils 
are much closer, only 1 or 2 lines apart. The leaves ordina- 
rily are 3 lines (rarely 5 lines) long, 2 lines broad across the 
lateral teeth, ^ line broad immediately below them, and thenee 
linear to the base. The pedicel of the teiminal solitary flower 
is very short ; the calyx (Including the teeth ^-1 line long) is 
3 lines in length, the teeth being of a long triangular form, 
flat inside, without any intervening membranes ; the tube of 
* A dra-wing of this species, with analytical figures, is given in 
Plate 83 B. 
