118 COMMON CANADIAN WILD PLANTS. 



heads, peduncles, etc., mostly glutinous. Leaves lanceolate 

 or oblanceolate, serrate or entire, the radical ones petiolate, 

 obtuse, and serrate at the apex. Rocky banks, not common. 



6. S. macrophyl'la, Pursh. (8. thyrsoidea, E. Meyer.) 

 Stems stout, simple, pubescent near the summit. Leaves 

 thin, ovate, with sharp projecting teeth, the lower ones 

 abruptly contracted into long margined petioles. Heads large, 

 in an oblong raceme, loose and thin, long-pointed. Bays 

 8-10, long. Wooded hillsides, chiefly Atl. Prov. 



*** Heads in a compound corymb terminating the simple stem, not at 

 all racemose. 



7. S. Ohioen'siS, Riddell. Very smooth throughout. Stem 

 slender, reddish, leafy. Radical leaves very long (often a 

 foot), slightly serrate towards the apex, tapering into long 

 margined petioles; stem-leaves oblong-lanceolate, entire, 

 sessile. Wet grassy shores of Red Bay, Lake Huron. 



8. S. Pigf'ida, L. Rough and rather hoary. Stem stout, 

 2-5 feet high, very leafy. Leaves oval or oblong. Dry soil, 

 western Ontario, and N. W. 



* * * * Heads in one-sided racemes, spreading or recurved. Leaves not 

 3-ribbed, but sometimes obscurely 3-nerved. 



9. S. Semper' Virens, L. Stem stout. Leaves long, 

 lanceolate, thickish, smooth, entire, obscurely 3-nerved. 

 Racemes short, in a terminal panicle. Heads large, showy. 

 Salt marshes and sea-shores. 



10. S. puber'ula, Nutt. Stem and panicle minutely hoary. 

 Stem-leaves lanceolate, acute, tapering to the base, some- 

 what smooth, the lowermost spathulate, sparingly toothed. 

 Heads not large, crowded in compact short racemes, which 

 form a long, dense, terminal panicle. Rays 10-14. Barren 

 soil, Atl. Prov. 



11. S. Uliglno'sa, Nutt. (8. stricta, Ait.) Smooth. Stem 

 simple, strict. Leaves lanceolate, pointed, smooth, the 

 lower tapering into winged petioles, finely but sparingly 

 serrate, or entire. Racemes crowded and appressed in a 

 close wand-like panicle. Heads middle-sized. Rays 5-6, 



