142 RypBErRG: Rocky MOouNTAIN FLORA 
MACKENZIE TERR.: Slave Lake, Richardson ; Wooded Coun- 
try, Richardson ; Mackenzie River 1861-2, Kezmnicott; Fort Reso- 
lution, 1861-2, Onion, Kennicott & Hardisty. 
SASKATCHEWAN: 1857-8, £. Bourgeau. 
Montana: Gateway, Aug. 17, 1908, Butler 477, 473, and 
434; Helena, Aug. 16, 1892, Kelsey. 
‘ Aster junciformis sp. nov. 
Aster gunceus Coulter, Man. 161, in part. 1885. 
Aster longulus Rydb. Fl. Colo. 356. 1906. Not Aster longulus 
Sheldon. 1894. 
Perennial, with a slender horizontal rootstock ; stem slender, 
3-5 dm. high, simple below, with pilose lines or wholly glabrous 
below; leaves narrowly linear, 4-8 cm. long, 2-4 mm. wide, 
scabrous-ciliolate on the margins, light green; inflorescence 
corymbiform, with the rather few heads terminating the stem 
and leafy branches; involucres about 6 mm. high, about I 
cm. broad; bracts glabrous, erose-ciliolate; the inner bracts 
linear, acute, with green midrib and green lanceolate tips, the 
outer oblong or somewhat oblanceolate, obtuse, and often almost 
wholly green ; rays white, 6-8 mm. long; achenes sparingly hairy 
or nearly glabrous. 
This has been known under the name of A. jwnceus in nearly 
all western botany, but differs in the always white rays, the sub- 
corymbose inflorescence, and the broader bracts. In the eastern 
A, junceus the bracts are narrowly linear or linear-subulate and the 
rays are always described as light purple. 
Montana: East Gallatin Swamps, July 24, 1896, Hlodman 
533 (type, in herb. N. Y. Bot. Gard.). 
Nortu Dakota: Butte, Aug. 5, 1906, Lunell. 
SoutH Dakota: Custer, Aug. 15, 1892, Rydberg 775. 
CoLorapo: West Cliff, 1896, Shear 3463, 3817; Twin Lakes, 
Clements 388 and 379. 
MINNEsoTA: Minneapolis, 1891, G. B. Aiton; Hennepin 
County, 1890, Sandberg. 
SASKATCHEWAN: Cypress Hills, 1880, /. Macoun; Lake 
Manitou, July 23, 1906, Macoun & Herriot 77052; also Bear 
Hills, July 29, 77052. 
ALBERTA: Five miles west of Battle River, 1906, Macoun & 
Herriot 77053 ; also Grattan Creek, Aug. 16, 77050. 
