(34 COMMON CANADIAN WILD PLANTS. 



racemes on the spreading branches. Leaves lanceolate, 

 acute at each end, sharply serrate in the middle. — Low 

 grounds. 



17. A. panieula'tUS, Lam. (4. simplex, Willd.) Eays 

 pale blue or whitish. Scales of the involucre linear-awl- 

 shaped. Stem stout, smooth or nearly so, with numerous 

 leafy branches. Heads medium-sized, scattered, loosely 

 paniculate. Leaves smooth, oblong to lanceolate, tapering 

 at both ends, the lower serrate. — Moist and shady banks. 



18. A. jun'eeus, Ait. Eays light purple. Stem slender, 

 1-3 feet high, simple, with few small heads, or loosely 

 branching. Leaves narrow, entire, or the lower sparingly 

 denticulate. Scales of the involucre small, narrow, in 2 or 

 3 rows. — Bogs and wet places. 



19. A. Vimin'eus, Lam. Rays white or nearly so. Stem 

 2-5 feet high, smooth, bushy. Leaves linear or narrowly 

 lanceolate, the larger ones sparingly serrate in the middle 

 -vith fine teeth. Heads very numerous, in 1-sided racemes 

 on short brauchlets. Scales of the involucre narrowly 

 linear, in 3 or 4 rows. — Moist banks. 



20. A. nemora'lis. Ait. Bays lilac-purple, elongated. 

 Stem slender and leafy, the upper branches terminating in 

 1-flowered nearly naked peduncles. Leaves small, rigid, 

 narrowly lanceolate, nearly entire, with revolute margins. — 

 Swamps, Atl. Prov. and Muskoka. 



21. A. ptarmieoi'des, Torr. and Gr. Eays pure white. 

 Stems clustered, generally a foot high, each bearing a flat 

 corymb of small heads. Leaves linear-lanceolate, acute, 

 rigid, entire, mostly 1-nerved, with rough margins. — Dry or- 

 gravelly hills. Our earliest Aster. 



22. A. aeumina'tUS, Miohx. Eays white or faintly 

 purple. Stem about a foot high, somewhat hairy, zigzag, 

 panioled-corymbose at the top. Leaves large, thin, oblong- 

 lanceolate, pointed, coarsely toothed towards the apex, entire 

 at the base. — Cool sandy woods ; mostly eastward. 



23. A. umbella'tUS, Mill. {Diplopappusumbellatus,1oTr^ 

 and G-r.) Pappua dovMe, the inner of- long capillary bristles, 



