HITCHCOCK PLANTS OF AMES, IOWA. 5OI 



A. azureus, Lindl. in Hook. Comp. Bot. Mag. i. 1835. 



Prairies and thickets; frequent. 

 A. cordifolius; L. Spec. 



Woods; common. 

 A. ljevis, L. Spec. 



Rocky woods, especially bluffs; not uncommon. 

 A. amethyst in us, Nutt. Trans. Amer. Phil. Soc. vii. 1841. 



Moist places ; scarce. 

 A. multiflorus, Ait. Hort. Kew. 



Prairie: common. 

 A. eateriflorus, (L.) Britton, Trans. X. Y. Acad. Sci. ix. 1889. 

 — Solidago lateriflora, L. Spec. — A. diffusus, Ait. Hort. Kew. 



Low woods ; abundant. 

 A. PANICTJLATUS, Lam. Diet. i. 



Low "round : common. 

 A. prenanthoides, Muhl. in Willd. Spec. iii. 



Low ground: infrequent. 

 A. punickus, L., var. lucidulus, (Wendr.) Gray, Syn. Fl. i. 2. — 

 A. luctdulus. Wendr. Ind. Sem. Marb. 



Moist places; not uncommon. 

 A. UMBKLLATUS, Mill. Diet. 



Low ground ; not uncommon. 

 Var. pubens, Gray, Syn. Fl. i. 2. 



Low ground; infrequent. 



Erigeron Canadensis, L. Spec. 

 Neglected ground ; common. 



Commonly 4 or 5 feet high, but depauperate specimens sometimes only a few 

 inches. 



E. divartcatus, Michx. FL 



Prairie or open woods; not uncommon. 

 E. annuus, (L.) Pers. Syn. ii.— Aster annuus, L. Spec. 

 Prairie and neglected fields; abundant. 



The typical form is pubescent with spreading hairs; leaves broad, thinnish and 

 toothed. Passes into the next. 



E. ramosus, (Walt.) B. S. P. Cat.— Doronicum ramosum, Walt. 

 Fl. — E. strigosus.. Muhl. in Willd. Spec. iii. 

 Dry ground ; common. 



Typical form pubescent with appressed hairs; leaves narrowly spatulate, thick - 

 ish, usually entire. Apparently crosses freely with E. annuus. 



E. Philadeepiiicus, L. Spec. 



Upland woods; abundant. 

 Antennarta plantaginifolia, (L.) Hook. Fl. i.-Gnajihalium 

 filantaginifolium. L. Spec. 

 Upland woods; common. 



