Order 70.— ASTERWORTS. 



g Leaves entire or very nearly so 20, 21 



g Leaves serrate. Stem smooth and glabrous 22-24 



g Leaves serrate. Stem roughi3h-pubescent....25, 26 



k Stem downy or hairy. Leaves rough or not 80-32 



k Stem smooth and glabrous. Leaves smooth or rough m 



m Kays G-12. Eacemes close, forming a compact panicle 38-40 



m Kays 6-12. Kaeemes distant, loosely or scarcely panicled 86, 37 



m Kays 2-5. Eacemes, or the panicle, long and slender. . . .33-35 



n Leaves lanceolate, large. Stem smooth 44-46 . 



n Leaves lanceolate, large. Stem rough-downy 41-43 



n Leaves linear, entire. Stems much branched, smoothish....47, 48 



I S. pauciflosculo'sa. Shimhby Goldenrod. Bush 2f. high, very smooth, with 



lanceolate leaves and the 5-flowered heads in erect, panicled racemes. S. 



2 S. discoi'dea. Rayless G. Disk florets 10-15. Eacemes erect, panicle slender. S. 



3 S. brachyphyl'la. Chajjnian" s G. Florets 5-7. Eacemes spreading, one-sided. S. 



4 S. squarro'sa. Bagged S. Eays 10-15. Scales stiflf, with spreading, green 



tips. Heads large. N. 



5 S. squarrulo'sa. Hough S. Eays 6-10. Scales awl-shaped, with slender, 



loose tips. S. 



6 S. bi'color. Creamy S. Eays about 8, creamy-white. Plant hairy. Lvs. elliptic. 



7 S. Buck'lyi. Buckly''s S. Eays 4-0, yellow. Plant woolly. Leaves oblong. S. 



8 S. latifo'lia. Broad-leaved S. Eays yellow. Plant smoothish. Leaves broad 



lanceolate, coarse-toothed. Seed downy, c. 



9 S. cse'sia. Polished S. Eays yellow. Plant smooth and glaucous. Lvs. lin. -lance- 



olate. Stem fiexuous, tall, slender. A beautiful Goldenrod. Woods, c. 

 10 S. thyrsoiMea. Thyrse G. Leaves ovate, long-stalked. Tall, l-3f. high. 

 Heads large. Coarse, showy. In mountain woods. 



II S. Vu-gau'rea. True G. Leaves oval, short-stalked. Low, 2-3' high. Heads 



about 30-flowered, few, often only one. 

 12 S.hum'ilis. i/b?mi!<n'/i (?. Lvs. oblanceolate. High 6-12'. Heads about 12-flwd. 



13 S. virga'ta. Virgate G. Heads all in one raceme at top. 



14 S. stric'ta. Upright G. Heads in a panicle, which is narrow and erect. 



15 S. specio'sa. Showy G. Heads in a thyrse-like panicle, large and very showy. 



Pedicels shorter than the involucre, pubescent. Leaves very broad. 

 16S. verna, Farly S. "Whitish-downy. Lower leaves ovate. May, June. S. 

 17 S. puber'ula. I>iisty S. Dusty-puberulent. Lower leaves oblanceolate. 

 Panicle long, compound, dense. Scales acute. Aug. N. 



18 S. sempervi'rens. Eoergreen S. Lvs. lanceolate, thick, obscurely 3-veined. E. 



19 S. angustifo'lia. Karrow-lv. S. Lvs. lance-lin. 1-veined, thick. Hds, small. S 



20 S.nemora'lis. WoodS. Plant dusty, roughish. Lvs. acute. Eays showy, c 



21 B. nipes'tris. ^oci-.9. Plant smooth. Lvs. acuminate. Eays very short. W 



22 S. Missourien'sis. Missourie G. St. l-2f. All glabrous. Panicle dense. W. 



23 S. sero'tina. Late G. Stem 3-6f. Leaf veins hairy beneath. Panicle loose. 



24 S. gigan'tea. Giant G. Stem 3-8f. Branchlets hairy. Leaves Innceolnte. 



10* 



