NEW OR NOTEWORTHY SPECIES. 99 
Mountain parks near Pagosa Peak, southern Colorado, 
at 8,000 feet, 30 Aug., 1899, C. F. Baker; also at Chama, 
N. Mex., 4 Sept., by the same collector. Related to M. aspera 
of similar localities in northern Colorado, and intermediate 
between that and M. Bigelovii. A large and showy species, 
remarkable for the variability of its foliage, and differences 
in degree of pubescence. 
MacHJERANTHERA PARTHENIUM. Annual, stoutish, 2 feet 
high, narrowly paniculate from near the base; stem and 
branches canescently tomentulose: leaves pinnately parted 
into 5 to 7 narrowly cuneiform segments, these again more or 
less deeply cleft: heads short-peduncled at and near the 
ends of the short branches; involucres campanulate, 4 or 5 
lines high, of several series of narrow bracts all with long 
linear-acuminate granular-viscid more or less spreading 
green tips: rays many and narrow: achenes oblong-linear, 
compressed, strongly striate under an appressed silky pubes- 
cence. 
C. G. Pringle, Davidson’s Cañon, Arizona, 10 Sept., 1884, 
distributed as Aster tanacetifolius, but very different from 
that. : 
LEUCELENE ALSINOIDES. Branches of slender caudex naked 
except at summit, there bearing tufted linear-spatulate 
acute leaves which are strongly hispid-ciliate with hairs in- 
flexed or ineurved above the middle, the leaf otherwise 
scabrous and granular-viscidulous; cauline leaves similar 
but linear, those of the sterile branchlets acerose and ap- 
pressed, tipped with long slender white bristles: pedicels of 
the heads canescent with appressed somewhat silky hairs ; 
bracts of involuere very acute, sparingly strigulose and 
scabrellous. 
Rocky hills and plains at Concho, western Texas, flower- 
ing in April and May ; distributed by Reverchon. 
