248 MR. GEYER’S ROCKY MOUNTAIN PLANTS. 
1. Chænactis Douglasii, Hook. et Arn. Bot. of Beech. Voy. 
Suppl. p. 354. Torr. et Gr. Am. 2. p. 371. Hymeno- 
pappus Douglasii, Hook. Fl. Bor. Am. 1. p. 316. Macro- 
carpus Douglasii, Nutt. in Trans. Am. Phil. Soc. 7. p. 375. 
Has. Only one specimen found, growing with “ Bartonia 
ornata," at the Great Falls of Upper Spokan River. 
July. (n. 552.) 
2. C. achilleæfotia, Hook. et Arn. Bot. of Beech. Voy. Suppl. 
p. 354. Torr. et Gr. Am. 2. p. 371. Macrocarphus achilleæ- 
folius, Nutt. l. c. 
Has. Amongst Opuntia Missourica in the high sandy plains 
between Platte and Sweet Water rivers. July. (n. 142.) 
1. Hymenopappus corymbosus, Torr. et Gr. Am. 2. p. 372. 
Has. High fertile plains of Lower Platte and Kanzas Rivers. 
May. (n. 246.) 
2. H. tenuifolius, Ph.—Torr. Gr. Am. 2. P. 878. 
Has. Gravelly hills, Lower Platte, growing with Evolvulus 
. argenteus and Polygala alba. June, July. (n. 214.) 
: 3. H. luteus, Nutt.—Torr. et Gr. Am. 2. p. 378. E 
. Has. Amongst Opuntia Missourica in the great sandy plains om 
between Platte and Sweet Water Rivers. July. (n. 141) 
“1, Bahia leucophylla, DC.—Torr. et Gr. Am. 2. p. 375. Tri- 
chophyllum integrifolium, Hook. Fl. Bor. Am. 1. Mp n T 
= multiflorum, Nut. 
ER Has. Covering the declivities of Trappe and Basalt moun- 
cm pape: on the Kooskooskee and Coeur docu. rivers. M: 
à it olia, Nutt. (under Trichophyllum)- —Torr 
Arpa | Ed 
red in a small range of fertile piss: mer 
€ mountains, between Platte and Sweet i 
: * Actinella acaulis, Nott Tor, etGr.A Am. LI 382. 
pow near te  juncon of bet ivo fork Jui J uly 
