STATE GEOLOGIST. 87 



extending eastward at least to the St. Louis river, Mrs. Herrick, Morrison county and 

 Minneapolis, Upliam, Goodhue county, Sandherg, and lake Pepin, Miss Manning; 

 abundant about lakes in Grant county, Roberts, and in swamps near New Ulm, Juni; 

 very rare in Emmet county, Iowa, Cratty. 



S. integerrimus, Nutt.* Groundsel. 

 Lapham, West. 



S. aureus, L. Golden Ragwort. Squaw-weed. Life-root. 

 Common, or frequent, throughout the state, in some portions abundant. 



S. aureus, L., var. obovatus, Torr. & Gray. Golden Ragwort, Squaw- 

 weed. 

 Minneapolis, Kassuhe ; Pipestone county, Mrs. Bennett; and perhaps throughout 

 the state. 



S. aureus, L., var. Balsamitte, Torr. & Grajfc Golden Ragwort. Squaw- 

 weed. 

 Throughout the state. North of lake Superior, Agrassfe ; Pembina, C7iic?fering; 

 Pokegama Falls, Honghton-^ Minneapolis, Bo/jerte. 



S. canus, Hook.f Groundsel. 



Put in bay, north shore of lake Superior, Juni North. 



S. lug'ens, Richardson. t (Including var. Hookeri, Eaton.) Groundsel. 



Red river valley near Moorhead, I/Ct5er{/; Pipestone county, Mrs. Bennett. [Also 

 Plymouth county, in northwestern Iowa, Arthur.] West. 



ARNICA, L. Arnica. 



A. Chamissonis, Less. (A. mollis, Hook.) Arnica 

 North shore of lake Superior, Juni. North. 



CENTAUREA, L. Star Thistle. 



C Cyanus, L. Blue-bottle. Bachelor'' s- Button. 

 Escaped from gardens, Blue Earth county, Leiherg. 



*Seneoio integerrimus, Nutt. Glabrous throughout ; stem simple, striate, 12 to 

 18 inches high ; leaves entire ; radical ones 3 to 5 inches long and l to 2 inches wide, 

 rather obtuse, tapering into a petiole, somewhat fleshy, upper small, lanceolate, acute, 

 partly clasping ; corymb simple or nearly so ; heads rather large, 8 to 20 ; involucre 

 hemispherical, bracteolate, scales 15 to 20, narrowly linear, acute ; rays about 8, small ; 

 disk-flowers 40 to 50; achenia striate, nearly glabrous. Porter and Coulter's Flora of 

 Colorado. 



tSENECio CANUS, Hook. Whitish tomentose throughout ; stems tufted, 2 to 12 

 inches high ; radical leaves obovate, obtuse, narrowed into short petioles ; the cauline 

 sessile, lanceolate, pinnately cleft, or with a few teeth near the base, rarely entire ; 

 heads rather large, few in a simple corymb ; involucre nearly ecalyculate ; rays 8 to 12, 

 not twice as long as the involucre ; achenia glabrous. Eaton in Bot, Rep. of King's 

 Expl. of the Fortieth Parallel. 



tSENECio liUGENS, Richardson. Lightly floccose-woolly when young, in the typical 

 form early glab rate and bright green : stem 6 inches to 2 feet high, few- and small- 

 leaved and naked above, terminated by a cyme of several or rather numerous heads 

 (these about five lines high) : radical and lower cauline leaves spatulate, varying to 

 oval or oblong, either gradually or abruptly contracted at base into a winged or mar- 

 gined short petiole, usually repaud- or callous-denticulate ; upper cauline lanceolate 

 or reduced and bract-like; bracts of the campanulate involucre lanceolate, with ob- 

 tuse or acutish commonly blackish-sphacelate tips : heads many-flowered : rays 10 or 

 12, conspicuous. Gray's Synoptical Flora of N, A. 



