238 Enumeration of Plants of the Rocky Mountains. 
0. Arnica angustifolia, Vahl, var. discoidea/ latifolia. There is 
ra ee species in California - but none of the common species have be 
fore been met with in this oom di ition. 
_ 2. Arnica cordifolia, Bok 
cuspidatis ; pappo pueisquamelato et 1-2-aristato. “N yo the mouth 
of the river, Sept.; growing in large clumps, 8 to 5 feet high, 
in rich soil.” Well marked by the broad and rounded, brates tippe 
scales of the involucre. 
‘ 17. Another dwarf variety of the sbewe specie 
_- 16. Solidago humilis, 2 Torr. & Gray; to be aioe ed to S. Virgaurea. lo eer) 
18. The var. alpina of the above (i.e. S. Virgaurea, alpina, Biges Wh 
resembling the plant from the summit of the White Mountains, N 
Hampshire, but only an inch or two high. 
_» 19. Senecio aren var. Balsamite, with leaves ipee pinnatifid. 
20. Senecio canus, Hook., with few and large he 
_~ 22, The same epeclee with more numerous and seo heads. 
21, Senecio lugens, Richards., but the scales of the involucre 2 
all sphacelate at the tip. 
ys 23. Senecio exaltatus, Nutt., var. minor. A ey of S. lugens. 
_-24, Senecio retin 4 Nutt. A rare spec 
ve “95, Senecio tri riangularis, Hook., in beautiful sachin 
“ 96. Senecio eremophilus, Richards. ped 
“_ 27. Senecio Fremontii, Torr. & Gray. Taller and well develo 
“specimens of this alpine species, mostly a foot high. 
28. A low, abparensly more dint variety of the preceding, with 
“monocephalous stems, and leaves all tapering at the 
29. Palafoxia H ookeria ray. 
A 
ot at 
staat 
a specimen of Pectis angustifolia, Torr., were sae on the an 
* a, S 
as 32. Arnica angustifolia, Vahl; the tall, leafy-stemmed form ere 
_ in that region, and approac ae ng A. Chamissonis. Bourgeau ©° 
the on the Saskatchaw 
"83, 35. Tow nsendia someting Hook: 6g feet 
84. Ci irsium edule, Nutt.? “A common subalpine species, 3 to 
flowers yello owish.” 
. ps m foliosum, DC., or a plant generally agreeing with Hooker's 
character, was sparingly cols in the bare alpine region. thi- 
~ 36, Fatal de ia, Gray, Pl. Wri Cyclacheena 2a” 
4 dae ern Gray, coll. H. Engelmann, in Exped. Lieut. Bryan, I believ® 
. ablishe Sethe ean soachon Ci Uhia vetssear: "Tass none was collected YF 
British Oregon Boundary Commission, in the Cascade ountale® 
