GEOLOGICAL SURVEY OF THE TERRITORIES. 485 



BriclcelUa grandiflora, Nutt., var. minor^ Gray. — Gray^s Peak, Colo- 

 rado Territory, Br. George Smith. 



Macho3r anther a cmiescens, Nutt. — Between Madison and Jefferson 

 Bivers. 



Aster integrifolius, Nutt. — Mud Springs 5 Yellowstone Lake 5 Falls of 

 the Yellowstone. 



Aster adscendens, Lindl., var. — Yellowstone Lake. 



Aster falcatus, Lindl. — ^Hot Sulphur Springs. 



Aster multiflorus, Ait. — Fish Creek, Jefferson Yalley ; Boteler's Eanch. 



Aster glacialiSj Nutt. — Lower Falls of the Yellowstone. 



Aster salsiiginosuSj Eich. — Lower Falls of the Yellowstone. 



Aster Haydeni, sp. nov. — Stems (1-3) from an erect transversely fur- 

 rowed caudex, lanulose above, 3 to 5 inches high, each bearing a single 

 head of medium size; radical leaves linear, grass-like, 3 to 4 inches 

 long, 1 to 2 lines wide, rather acute, 3-nerved; cauline leaves few, 

 smaller ; scales of the involucre in about 3 series, lance-linear, often 

 purplish, acute, with scarious lacerately fringed margins, shorter than 

 the disk ; rays apparently purplish ; style of the disk-florets with subu- 

 late branches, of which the hispid portion is 3 times as long as the 

 stigmatic ; achenia linear-oblong, nearly 3 lines in length, 6 to 8 costate, 

 slightly villous at the summit j setae of the pappus minutely barbellate. — 

 This plant belongs to the section Xylorliiza and is allied to A. Ander- 

 sonii, Gray, from which it is chiefly distinguished by its almost glabrous 

 achenium and narrower involucral scales.— Upper Falls of the Yellow- 

 stone. 



Aster elegans, T. and G. — Hot Sulphur Springs. 



Aster Engelmanni^ Gray. — Yellowstone Lake. 



Aster glaucuSj T. and G. — Boteler's Eanch. 



Erigeron Canadense, L. — Ogden, Utah Territory. 



Erigeron compositum^ Pursh. — Upper Falls of the Yellowstone. 



Erigeron compositum^ Pursh, var. discoideum^ Gray. — Yellowstone Lake. 



Erigeron grandiflorum. Hook., var„ elatius. Gray. — Gray's Peak, Col- 

 orado Territory, Er. George Smith. 



Erigeron acre, L. — Madison Valley. 



Erigeron Bellidiastrum, Nutt. — Eear Ogden, Utah Territory. 



Erigeron macranthum, Nutt. — Yellowstone Lake. 



Erigeron glahellum, Nutt. — Pleasant Yalley j Madison Yalley. 



Erigeron corymhosum, IsTutt. — Pleasant Yalley ; Mud Springs. 



Erigeron cwsjntosum, Nutt. — Stinking Water Creek; Mud Springs. 



Erigeron canescens, T. and G. — Stinking Water Creek. 



Eiplopapi^us alpinus, Nutt. — Stinking Water Creek. 



Eiplopappus alpinus, Mitt., var. — Mountains south of Virginia City. 



Townsendia spathulata, ]^utt. — Mountains south of Virginia City. 



Townsendia grandiflora, Nutt. — Mountains south of Virginia City. 



Townsendia scapigera, D. C. Eaton, (C. King's Eep., vol. V., p. 145,) 

 var. elatior. — Scapes 3 to 9 inches high ; leaves more or less acute. 



Solidago Virga-aurea, L. — Mud Springs ; Yellowstone Lake ; Upper 

 Falls of the Yellowstone. 



Solidago Virga-aurea, L., var. alpina, T. and G. — Hot Sulphur Springs. 



Solidago gigantea. Ait. — Boteler's Eanch ; Yellowstone Lake. 



Linosyris viscidijlora, T. and G. — Yellowstone Eiver. 



Linosyris Eowardiij Parry. — Crow Agency. 



Aplopappus acaulis, Gray. — Mountains south of Virginia City. 



Aplopappiis pygmo2us, Gray. — Gray's Peak, Colorado Territory, Dr. 

 Smith. 



Aplopappus cwspltostis, Gray. — Stinliiug Water Creek. 



