[Vor. 5 
74 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
S. canus var. acraeus Greenm. Ottawa Nat. 25 : 118. 1911. 
S. canus var. celsus Sharp, Bot. Gaz. 61 : 46. 1916. 
Cineraria integrifolia B. minor Pursh, Fl. Am. Sept. 2: 528. 
1814, and ed. 2, 1816, in part (excl. syn.), i. e. as to plant from 
**banks of the Missouri." 
A cespitose herbaceous perennial, white-tomentose through- 
out, occasionally somewhat glabrate especially on the upper 
leaf-surface; stems erect or nearly so, simple or branched, 
usually about 3 dm. high (varying from 1.2 to 5 dm.) ; radieal 
and lower stem-leaves oblong-obovate to oblanceolate, 2 to 
12 em. long, .5 to 2.5 em. broad, rounded to obtuse at the apex, 
entire or somewhat dentate, usually persistently white-tomen- 
tose on both surfaces, oceasionally more or less glabrate above, 
narrowed below the middle into a petiole about equalling or 
shorter than the blade; upper stem-leaves sessile, lanceolate 
to linear, entire to coarsely dentate, often ampliated and 
laciniate at the more or less amplexicaul base; inflorescence 
a terminal few to several-headed corymbose cyme; heads 10 
to 12 mm. high, radiate or rarely discoid; involucre campanu- 
late, sparingly calyculate, tomentose to nearly glabrous; bracts 
of the involucre usually about 21, occasionally fewer, linear- 
lanceolate, 6 to 8 mm. long; ray-flowers 8 to 12, rays yellow; 
disk-flowers commonly 40 to 70; achenes glabrous (notwith- 
standing original illustration). 
Distribution: Manitoba to Nebraska, west to British Co- 
lumbia and Colorado. 
Specimens examined: 
Dominion of Canada: ‘‘banks of the Saskatchewan," 
Drummond (Gray Herb. and Geol. Surv. Canada Herb.), 
co-ryPE; Carlton House, Richardson (Geol. Surv. Canada 
Herb.) ; Palliser’s Brit. N. Am. Expl. Exp., coll. of 1858, Bour- 
geau (Gray Herb.). 
Manitoba: near Forest, 19 July, 1906, Macoun (Mo. Bot. 
Gard. Herb. and Geol. Surv. Canada Herb.). 
Saskatchewan: Moose Mountains, July, 1880, and 4 July, 
1883, Macoun (U. S. Nat. Herb. Nos. 219789, 143119) ; Assina- 
boine Rapids, 14 June, 1879, Macoun 49 (Gray Herb.) ; Spy 
Hill, 23 June, 1879, Macoun 52 (Gray Herb.), type of variety 
