72 TWELFTH ANNUAL REPORT. 



A. Traclescanti, L.* Tradescant's Aster. 



Opeu grounds, Canada to Virginia, Illinois and Saskatchewan. Nearly allied with 

 the two preceding and the two following species. Gray's Synoptical Flora of N, A. 



A. diffusus, Ait. (A. miser, \n Manual.) Aster. 



Throughout the state. Common north of lake Superior, and at Minneapolis, Rob- 

 erts; lake of the Woods, Dawson; Todd county, Upham; St. Croix river. Parry; Good- 

 hue county, Sandbe?-6(; Blue Earth county, -Letbera; Emmet county, lov/a,, Cratty. 



A. panicillatus!. Lam. (A. simplex, and A. tenuifolius, partly, in Manual.) 

 Panicled Aster. 

 Common, or frequent, throughout the state ; especially plentiful westward. 



A. polyphyllus, Willd.f (A. tenuifolius, partly, in Manual.) Aster. 



Notes of A. tenuifolius, as described in Gray's Manual, probably belonging in part 

 to A. polyphyllus, are as follows : upper Mississippi river, Houghton; Fergus Falls, 

 Leonard; Douglas county, Mrs. Terry; Wadena and Todd counties, Upham-^ Blue 

 Earth county, Leiberg; Emmet county, Towa (rare), Cratty. 



A. salicifolius. Ait. (A. carneus, in ifa/jwa?.) Aster. 



Douglas county, Mj's. Terry; Lac qui Parle, UpTiam; Anoka county, Juni. [Also 

 northwest to the Saskatchewan river and eastern Montana, Gray's Synopitcal Flora 

 of N. A.] 



A. jiinceus, Ait. [A. ssstivus, in Manual.) Aster. 



Throughout the state, but infrequent. Blue Earth county, Lctberg; Goodhue 

 county, Sandberg; Anoka county, Ju?ii; Douglas county, JUrs. Terry; Pembina, Ha- 

 vard. [North of lake Superior, Agassiz.] 



A. long'ifolius, Lam.J Long-leaved Aster. 



This species (not the one so named in Gray's Manvxil, which is the next; more 

 nearly related with A, junceus) doubtless occurs in northern Minnesota . 



A. Novi-Belgii, L. (Including A. longifolius o£ Gray's Manual.) Newr 

 York Aster. 

 Spirit lake, Iowa, Geyer; Blue Earth county, Gedgc; southwestward (frequent), 

 Juni ; Douglas county, Mrs. Terry ; Fergus Falls, Leonard ; upper Mississippi river, 

 Garrison ; Pembina, Havard. 



* Aster Tradescanti, L. Stem slender, 2 to 4 feet high, with numerous erect or 

 ascending branches and branchlets : leaves lanceolate or linear, slightly serrate or en- 

 tire, thinnish : small heads numerous, corymbosely or somewhat lacemosely paniculate 

 [the most notable distinction from A. vimineus] ; only two or three lines high : bracts 

 of the involucre linear, acutish, partly green at tip and down the back : rays white, or 

 sometimes tinged with lilac, only about 2 lines long. Gray's Synoptical Flora of N. A. 



tAsTER POLYPHYLLUS, Willd. Mostly tall (4 or 5 feet high), with virgate branches, 

 glabrous : cauline leaves narrowly lanceolate or linear (4 or 5 inches long, quarter to 

 half inch wide) ; those of flowering branchlets small and subulate-linear : heads pan- 

 iculate (4 lines high): involucre nearly hemispherical; involucral bracts lanceolate- 

 subulate, outer successively shorter, rather rigid, with green nearly erect tips; rays 

 numerous, bright white, disposed to turn rose-purplish, 4 lines long : akenes minutely 

 pubescent. Gray's Synoptical Flora of N. A. 



X Aster longifolius. Lam . A foot to a yard high, glabrous or pubescent, leafy : 

 leaves elongated-lanceolate to linear-lanceolate, entire or sparingly serrulate, 3 to 7 

 inches long, tapering to both ends : involucre 4 to 5 lines high, little or not at all imbri- 

 cated ; its bracts all of nearly equal length, some looser, outermost not rarely quite 



herbaceous : rays 3 or 4 lines long, violet or purplish, rarely almost white 



Low grounds or along streams, Labrador to Montana, Slave Lake, south to Canada and 

 N. New England. Gray's Synoptical Flora of N. A. 



