150 Robinson and Greenman—Mexican Plants. 
Il. New and Noteworthy Plants chiefly from Oaxaca collected 
by Messrs. C. G. Pringle, L. C. Smith and E. W. Nelson. 
This plant agreeing rather closely both in habit and essential 
oral characters with M. racemosa Jacq. differs from any known 
species of Mappia in its glabrous petals. The genus appears to 
e new to Mexico. : : 
Mimosa mrnutirouia. Branches smooth, grayish, often sttl- 
leaflets 10 to 20 pairs, elliptical, very minute, half line long, pin 
two-thirds as broad, smooth and cinereous above, very went 
pruinous on lower surface, ciliated on the margin: pedune 
oblong, narrowed at both ends, 14 to 18 lines long, 3 to 4 7 
broad, cinereous-tomentose, and densely covered on the surfaces 
h 
specimen collected by C. G. Pringle, on rocky hills near Rio 
Blanco, Jalisco, 26 May, 1891 (No. 5142), This species belong 
to the Acanthocarpe and is most nearly related to Mee 
Benth. and M. acanthocarpa Benth. It is well characterized} 
its finely divided foliage. In each pinna the rhachis is gues 
with groups of minute dark-colored glands scarcely vis!)!© 
except under the compound microscope. ‘te 
EDUM CaLcrcoLa. Perennial, procumbent, nearly oF aa 
smooth: stem nearly terete, somewhat ligneous near the base; 
lower oblong-lanceolate, acutish, 6 to 8 lines long, 3 lines broad; 
the upper thick, terete; nearly half inch long, falling off at a “ 
inflorescence terminal of about three divergent racemes; the 
