326 COMPOSITAE 



39a. A. vimineus Columbianua Britton. (Man. p. 964.) — North- 

 ampton ; Phii^adelphia. 



40. Aster multiflorua Ait. DEnsB-PI,owerED ASTER. (Man. p. 

 964; I. F. f. 3802.) In dry open places, Me. and Ont. to the N. W. 

 Terr, and B. C, south to Ga., Tex. and Ariz. — Pennsylvania: North- 

 ampton ; Bucks ; Lancaster, on the Susquehanna ; Huntingdon ; 



Al^LEGHENY. 



41. Aster tenuifolius L. PEREnniai< Sai<T-marsh AsTER. (Man. 

 p. 965 ; I. F. y^ 3S04. ) In salt marshes, coast of Mass. to Fla. — Penn- 

 sylvania : Phii^adelphia. 



42. Aster subulatus Michx. Annuai, Sai<T-marsh AsTER. (Man. 

 p. 965; I. F. y. 3806.) In salt marshes, coast of N. H. to Fla. — Penn- 

 sylvania: Phuadelphia. 



14. ERIGERON L,. 



Plants perennial. 

 Ray-flowers less than 100. i. B. pulchellus. 



Ray-flowers over 100. z. E. Phtladelphicus. 



Plants annual or biennial. 

 Upper stem-leaves with sharply toothed blades : ray-flowers with pink 



ligules. 3. E. annuus. 



Upper stem-leaves with entire blades ; ray-flowers with white ligules. 



4. E. ramosus. 



1. Erigeron pulchellus Michx. Robin's Pi,anTain. (Man. p. 968; 

 I. F. / j'^/p.) On hills and banks, N. S. to Ont., S. Dak., Fla. and La. 

 — Pennsylvania : Monroe ; Northampton ; Bucks ; Delaware ; 

 Chester ; Lancaster ; Schuylkili, ; Somerset ; Allegheny. 



2. Erigeron Ftailadelphicns L. Philadelphia Fleabane. (Man. p. 

 968 ; I. F. /■ 3820.) In fields and woods, throughout N. Am., except the 

 extreme north. — Pennsylvania: Monroe; Northampton; Bucks: 

 Crawford ; Delaware ; Chester ; Lancaster ; Erie ; Allegheny. 



3. Erigeron annuus (L. ) Pers. SwEET trCABious. Daisy FlEa- 

 BANE. (Man. p. 969 ; I. F./. 3823.) In fields, N. S. to the N. W. Terr., 

 south to Va., Ky., Kans. and Mo. Nat. in 'B'a-— Pennsylvania : Mon- 

 roe ; Northampton ; Bucks ; Delaware ; Chester ; Lancaster ; 

 Erie ; Allegheny. 



4. Erigeron ramosus (Walt.) B.S.P. Daisy FlEabane. (Man. 

 p. 969 ; I. F. /. 3824.) In fields, N. S. to the N. W. Terr., south to Fla. , 

 La. and Tas..— Pennsylvania : Northampton ; Bucks ; Delaware ; 

 Chester ; Lancaster ; Franklin ; Erie ; Allegheny. 



15. LEPTILON Raf. 



1. Leptilon Canadense (L. ) Britton. Horse-weEd. (Man. p. 970; 

 I. F. f. 3827.) In fields and waste places, throughout N. Am. except the 

 extreme north. In the Old World and in S. Am. — Pennsylvania : North- 

 ampton ; Bucks ; Delaware ; Chester ; Lancaster ; Franklin ; 

 Erie ; Allegheny. 



