150 Robinson and Greenman—Menican Piants. 
Il. New and Noteworthy Plants chiefly from Oaxaca collected 
by Messrs. C. G. Pringle, L. C. Smith and E. W. Nelson. 
Maprra Mexicana. A shrub, 5 feet in height: branches coy- 
ered with a light grayish cortex, roughened by many small white 
lenticels : leaves oblanceolate, short-acuminate to an obtuse tip, 
cuneate at the base, 33 to 45 inches long, 1 to 14 inches broad, 
subcoriaceous, green and glabrous upon both surfaces; midrib 
prominent beneath; the lateral veins upon the lower surface each 
with a minute cavity just above the base; petiole puberulent, 
canaliculate, 4 lines long: flowers 4-5-parted, borne near the ends 
of the branches in short axillary pedunculate appressed-pubescent 
panicles (an inch or more in length): calyx minutely pubescent ; 
teeth acutish: petals oblong, 14 lines in length, half line broad, 
entirely glabrous upon both surfaces, obtuse, mucronulate with 
incurved tip: disk shallowly lobed, glabrous upon both surfaces ; 
ovary and style glabrous.—Collected by C. G. Pringle, in low- 
lands about Micos, San Luis Potosi, 8 December, 1891 (No. 5494). 
This plant agreeing rather closely both in habit and essential 
floral characters with JZ. racemosa Jacq. differs from any known 
species of Mappia in its glabrous petals. The genus appears to 
be new to Mexico. 
Mimosa minvutTiFoLIa. Branches smooth, grayish, often stri- 
ated with brown, armed with two kinds of reddish brown spines; 
the stipular spines in pairs, straight, about 2 lines long; each 
internode also bearing a single strongly recurved spine: leaves 
cinereous, bipinnate, oblong in general outline, about an inch in 
length; petiole a line long; rhachis minutely winged, armed 
beneath with small spines; pinnz 15 to 22 pairs, 2 lines in length; 
leaflets 10 to 20 pairs, elliptical, very minute, half line long, about 
two-thirds as broad, smooth and cinereous above, very minutely 
pruinous on lower surface, ciliated on the margin: peduncles 
solitary, half inch in length, finely pubescent; heads globose: 
calyx three-fourths line long; segments oblong, obtusish, two- 
thirds as long as the tube, somewhat thickened at the apex: pods 
' oblong, narrowed at both ends, 14 to 18 lines long, 3 to 4 lines 
broad, cinereous-tomentose, and densely covered on the surfaces as 
well as the margins with weak straw-colored spines.—Fruiting 
specimen collected by C. G. Pringle, on rocky hills near Rio 
Blanco, Jalisco, 26 May, 1891 (No. 5142). This species belongs 
to the Acanthocarpe and is most nearly related to M. flexuosa 
Benth. and AL acanthocarpa Benth. It is well characterized by 
its finely divided foliage. In each pinna the rhachis is provided 
with groups of minute dark-tolored glands scarcely visible 
except under the compound microscope. 
SEDUM cCALcIcoLA. Perennial, procumbent, nearly or quite 
smooth: stem nearly terete, somewhat ligneous near the base; 
the floriferous branches 8 to 12 inches high: leaves scattered, the 
lower oblong-lanceolate, acutish, 6 to 8 lines long, 3 lines broad ; 
the upper thick, terete; nearly half inch long, falling off at touch : 
inflorescence terminal of about three divergent racemes; the lat- 
