Enumeration of Plants of the Rocky Mountains. 9 
10. Arn ica angustifolia Vahl. eas a yrene ! latifolia. There is 
/ discoid species in California ; but none of the common species have be- 
fore been met with i in this con ition, 
ia, Hoo 
Mp: Boltonia latisyuama (sp.n nov.) : foliis ee et magni- 
tudine capitulorum inter B. glastifoliam et diffusam media; squamis 
involucri spathulatis vel obovatis nervo crasso Feld mucronatis vel 
a pappo gs ges et 1-2-aristato. “Near the mouth 
° 
ept. 5 n large 
in rich soil.” Well marked by ‘the Gaal and rounded, abruptly tipped 
scales of the involuc 
13. Aster (Orthomeris) glaucus, Torr. & Gray, (Hucephalus oe 
Nutt.) Abundant and very fine specimens of a rare and interesting 
plant, by aid of which the species should be characterized anew. - 
14, Macheeranthera (Die etert mm canescens, Gray, Pl. Wright. 
tt., a dwarf, mabalpine variety. 
_~ 16. Solidago humilis, P Torr. & Gray; to ag neice to S. Virgaurea. 
18. The var. alpina of th e above e (i.e. S. Virgaurea, alpina, Bigelow), 
~“yesembling the plant from ‘the ane mit of the White Mountains, New 
a but only an inch or two high. 
: 9. Senecio aureus, var. Baleamit tw, with leaves more pinnatifid. 
_ io. Senecio canus, Hook., with few and large heads. 
22. The same species w ith more numerous and smaller heads. 
% 21. Senecio ee: Richards, but the scales of the involucre not at 
all ne eo at the 
Senecio stalin Nutt., var. mznor. ae on of S. lugens. 
oh Senecio integerrimus, . A-rare 
25. Senecio triangularis, Hook, in beantifal aeneti 
26. Senecio eremophilus, Richa 
27. Senecio Fremoniii, _& @ Taller and well developed 
—~ specimens of this alpine eal mostly a , foot high. 
- 28. A low, apparently more alpine variety of the prevee sai with 
~~ monocephalous stems, and leaves all tig at the bas 
29. Palafoxia H: jana, Torr. & Gray. 
Aplopap s spinulosus, 
. Cor Eeenkedirate, Nott. This, with the two preceding, and 
a a specimen of Pectis angustifolia Torr., were gathered on the plains. 
ca angustifolia, the tall, leafy-stemmed form common 
in that region, and call A. Chamissonis. Bourgeau collected 
ep se Saskatchawan. 
endia sericea, Hook. 
oH pick eda, Nutt.? “A common subalpine species, 3 to 6 feet 
ail a eee herthai, : 
m foliosum, or aiplant Song agreeing with Hooker's 
characte, was voor Eten ted in the bare alpine region. 
phrosyne xanthifolia, Gray, Pl. Wright. Cyclachena zanthi- 
folia, Fresen. 
" * Aster Engelmanni, gt ae H. Engelmann, in Exped. Lieut. Bryan, I beg 
blished, is another gto ies of this section. The same was oo ed by 
still unpu 
Dr, Lyall of the —_—< Boundary Commission, in the Cascade 
