Refugium Botanicum. | | Vovember, 1871. 
TAB. 292. 
Natural Order GERANIACER. 
Sub-order OxALIDEm. 
Genus Oxatis, Linn. 
Sub-genus Tuamnoxys (Planch. Flore des Serres, viii. 281). Cau- 
lescentes suffruticose foliose folius trifololatis foliolis ovatis vel 
lanceolatis intermedio petiolulato pedunculis multifloris ovari 
loculis sepissime uniovulatis. 
O. Near (D.C. Prodr. i. 690) var. Guasrata (Baker). Suffruticosa 
1—2-pedahs ramis strictis gracillimis, folus trifoliatis mem- 
branaceis supra glabris nitide viridibus subtus obscure albido- 
sericeis purpureis, folioli terminali longe petiolulato ovato 
acuminato, lateralibus sessilibus obliquis, floribus parvis in- 
conspicuis in cymis paucifloris unifureatis axillaribus longe 
pedunculatis dispositis, sepalis lanceolatis dorso puberulis, 
petalis albidis obovato-spathulatis calyce duplo superantibus, 
staminibus trimorphis cum stylis inclusis.—G. Don, Gard. Dict. 
1, 754. 
A native of Mexico. - 
An erect undershrub, a foot to two feet high, with straight 
slender puberulent branches. Petioles an inch to three inches 
long, finely downy like the stem. Leaflets three, entire, thin, 
shining, dark green and glabrous above, purple and _ thinly 
pubescent beneath ; the central one ovate-acuminate, an inch and 
a half to two inches long, on a petiolule six to nine lines long ; 
lateral leaflets sessile, rather smaller, a little unequal-sided. 
Flowers in copious once-forked cymes, on erect slender peduncles, 
half an inch to two inches long, from the axils of the leaves. 
Pedicels very short. Calyx a line and a half to two lines long, 
slightly downy; sepals lanceolate. Petals whitish, obovate- 
spathulate, twice the calyx. Stamens trimorphic, always shorter 
than the petals. Styles pubescent. 
This may be distinct specifically from O. Newi, the wild 
specimens of which, that I have seen, are densely pubescent, 
with longer drooping pedicels, and leaves green on the under 
surface. It closely resembles O. Lindeni and O. acuminata of 
Turezaninow in the ‘ Moscow Bulletin’ for 1858, p. 429, both of 
which are evidently one species, but that has the terminal leaflet 
very nearly sessile. 
