256 MR. GEYER'S ROCKY MOUNTAIN PLANTS. 
(n. 446.) The involucre is downy in this specimen, and | 
the florets unexpanded. I am doubtful of the identity MER 3 
T. roseum. Ý 
1, Macrorhynchus Chilensis, Less.—M. heterophyllus, Nutt. 
—Torr.et Gr. Am. 2. p. 493. 
Has. Sunny rocky slopes of the mountains along the valley 
of Cœur d’Aleine River. Rays deep yellow. The flowers 
only expand once and for a few hours at noon. (n. 292.) 
—This is identical with the Chilian M. Chilensis. 5 
2. M. cynthioides ; glaberrimus, radice parva tuberosa, foliis 
omnibus radicalibus glaucis subdistiche insertis anguste 
lanceolatis integerrimis basi attenuatis equitantibus apice 
_ longe acuminatis, scapo nudo foliis longiore. 
Han. Sandy and saline moist places in the valley of Upper 
Sweet Water River. July. (n. 245.) The pappus is quite f 
that of Macrorhynchus; but the flowers are too young to 
determine the beaked nature of the fruit. I cannot 
.. refer it to any described plant. 
: 4.  Mulgedium pulchellum, Nutt. — Torr. et Gr. Am.-2. p: 
- 498. M. pulchellum, and M. heterophyllum, Nutt, So! 
= chus Sibiricus, Richards.—Hook. Fl. Bor. Am. 1. pe 
. Sonchus pulchellus, PA. Lactuca integrifolia, Ph. 
Haz. Amongst thickets of Rosa parvifolia, along the 
low banks of Lower Platte; also at the Koosl 
SE (n. 147.) 
+ M. leucopheum, DC .—Torr. et Gr. Am. Z- P 
ua iracopliena; Willd.—Hook. Fl. Bor. Am. À. 
valley of Upper Columbia Riv 
