240 Enumeration of Plants of the Rocky Mountains. 
marginatum subciliatum longe attenuatis parce argutissime dentatis vel 
subintegerrimis; capitulis parvulis (vix semi-pollicaribus) in pedicello 
1-2-bracteolato nutantibus discoideis; involucro bracteolis parcis laxis 
subcalyculato ; ovariis glaberrimis. “Dry hillsides, and in the crevices 
of rocks, upper part of Clear Creek, sometimes growing in close bunches. 
A species entirely new to me, well marked by its small nodding or cer 
- nuous heads, and its leaves (either broadly or narrowly lanceolate) a 
o Ta 
a 
ese 
en 
59. 
. probably forms of C. villosa 
ing into wing-margined petioles of an inch or two in length. N 
flowers; those of the disk yellow. 
53. Arnica mollis, Hook.? a dwarf form. 
54, Arnica angustifolia, Vahl; the alpine form, as of the Rocky 
ountains farther north, and of the N, W. coast. : 
552 C 
hairiness of the involucre; the latter is calyculate with linear scales o 
about one-third the length of the proper involucral scales ; and the 
ni y as as in 8S. fri 
length. Pappus equalling the disk-flowers. ale 
: 58. Villanova chrysanthemoides, Gray, Pl. Wright; a more pubesce? 
‘orm 
Chrysopsis villosa, Nutt., var. approaching hispida, mollis, &e, al 
61. Actinella grandiflora, Torr. & Gray in Bost. Jour. Nat. Hist. Soc. : 
“Scattered over the alpine ridges, growing singly or branched fro 
deep tap root, 6 to 9 inches high.” A most splendid dwarf alpine plat 
which, having caused seeds to germinate, I hope to introduce into 
ct OS. Gaillairdia aristata, Pursh. 
63. Senecio aureus, L., var. alpinus: caule scapiformi 1-2-cephalo 
. bracteato ; foliis radicalibus coriaceis rotundatis set heer 
fere aveniis integerrimis vel apice subtridentatis. pret and 
le rf 
less was collected near the snow line. I believe it is an 
S ar. borealis, and that S. subnudes 
nent 
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