New SPECIES FROM MEXICO. 
The following species, appearing to be new, form a part of 
a highly interesting collection made by Mr. A. Forrer, in the 
autumn of 1881, on the higher Sierra Madre back of the city 
of Durango, in Mexico, the locality having an altitude of about 
8,100 feet. 
DALEA CYANEA. Perennial : stems tufted, a foot high, erect 
from a decumbent base, corymbosely branched at summit : 
herbage glabrous, glaucous and punctate: leaves an inch long 
or more, nearly sessile; leaflets in 5—6 pairs, 4—5 lines long, 
elliptical, obtuse, very shortly pedicelled : flowers crowded in 
roundish depressed heads: bracts broadly ovate, acuminate, 
nearly glabrous, shorter than the 1 line long villous-pubescent 
calyces : ealyx-teeth triangular-lanceolate, shorter than the 
striate tube: corolla a half inch long; the conspicuous keel 
and wings bright blue, the short banner white. 
AsrRAGALUs DaLEm. Perennial : stems slender, decumbent 
or nearly prostrate, a foot long or less: apparently glabrous, 
but minutely and sparingly puberulent under a lens : leaves 
2 inches long, including the } inch petiole ; leaflets in 9—12 
pairs, 2—3 lines long, oblong, mostly truncate or retuse, very 
short-petioled : flowers greenish white, 2 lines long, 20—30 in 
elongated but crowded and spicate terminal and subterminal 
peduneled racemes, deflexed in age ; calyx campanulate, less 
than a line long, with minute triangular-subuláte teeth ; pod 
unknown. 
Species no doubt related to A. Cobrensis, but, in inflo- 
rescence and general aspect, somewhat resembling species of 
Dalea. 
153 Issued January 16. 1858. 
