328 FLORA OF PHILADELPHIA. 



Perennial; heads 15-25 mm. broad; involucral bracts lanceolate, acu- 

 minate. 36. A. tenuifolbits. 

 Annuals; heads 6-10 mm. broad; involucral bracts linear-subulate. 



37. A. subulatus. 



1. Aster divaricatus L. M. p. 949. Woodlands. Autumn. 



la. Aster divaricatus cymulosus Burgess. M. p. 949. Woodlands. 

 Autumn. 

 Northampton — (P.) . 



2. Aster tenebrosus Burgess. M. p. 950. Moist, dark woodlands. Autumn. 



Lancaster — (P.). 



3. Aster Claytoni Burgess. M. p. 950. Sunny or slightly shady, rocky 



places. Autumn. 

 Bucks— Argus (Fr.). Northampton — (P.). 



4. Aster Schreberi Nees. M. p. 951. Borders of woods and along shaded 



fence-rows. Late summer. 

 Bucks— Bock Hill (Fr.). Northampton— (P.). 



5. Aster macrophyllus L. M. p. 951. Shaded places. Late summer. 



Philadelphia — Fairmount Park (Ja.), Wister (Be.), Wissahickon 

 (VP.). Bucks— Bock Hill (Fr.). Montgomery— Willow Grove, Dr. J. B. 

 Brinton (B. C), Shannonville (Cr.). Delaware — Near Media (Fu.), 

 Swarthmore (Ws.). Chester— Westtown (W. Tr.). Lancaster— (P.). 

 Northampton— Easton, Porter (B. C). 



Camden— Timber Creek (C). Gloucester— Swedesboro (Li.). Mon- 

 mouth — Colt Neck (C). Hunterdon — Prallsville, Stockton (C). 



New Castle — Common. 



6. Aster cordipolius L. M. p. 953. Woodlands. Autumn. 



6a. Aster cordipolius polycephalus Porter. M. p. 953. Woodlands. 

 Autumn. 

 Bucks— (P.). Northampton — Easton, Porter (B. C). 



7. Aster Lowrieanus Porter. M. p. 953. Woods. Autumn. 



Bucks— Argus (Fr.). Montgomery— (P.). Chester— Coatesville, H. E. 

 Stone (B. C). Northampton— Easton, Porter (B. C). 

 la. Aster Lowrieanus lancipolius Porter. M. p. 954. Woods. Autumn. 



Bucks — (P.)- Montgomery^- (P.). Northampton— {P.). 

 76. Aster Lowrieanus Bicknellii Porter. M. p. 954. Woods. Autumn. 



Bucks — Argus, Bock Hill (Fr.). Northampton— {P.). 



8. Aster sagittipolius Willd. M. p. 954. Dry ground. Autumn. 



Bucks— Bock Hill (Fr.). Delaware— Near Haverford (Le.), Eidley 

 Creek above Media, Dr. Geo. Smith (B. Sm.). Chester — Greentree (Te.). 

 Lehigh— (P.). Northampton— {P.). 



Mercer— Princeton (C). Hunterdon— Locktown, Sergeantsville (C). 



New Castle— Genets! and common. 



9. Aster undulatus L. M. p. 955. Dry copses. Autumn. 



9a. Aster undulatus loripormis Burgess. M. p. 955. Dry copses. 

 Autumn. 

 Lancaster — (P.). Dauphin — (P.). 



10. Aster patens Ait. M. p. 955. Dry, open places. Autumn. 



