COMPOSITAE. 333 



ley of Darby Creek (B. Sm.), Concord (W. Tr.). Chester— Falls of 

 French Creek (Ja.), Devon (U. C. S.)- Lancaster — York Furnace, Dr. J. 

 B. Brinton (B. C.)- Northampton— "EiSiston, Porter (B. C.)- Dauphin— 

 Steelton (Wn.). 



Hunterdon — Pittstown, Rosemont (C.)- Mercer — Trenton. 



New Castle — Eastburn 's, Harvey's. Scarce. 



3. Erigeron annuus (L.) Pers. Daisy Fleabane. M, p. 969. Fields and 



waste places. Spring to fall. 



4. Erigeron BAMOSUS (Walt.) B. S. P. Daisy Fleabane. M. p. 969. Fields. 



Spring to fall. 



18. LEPTILON Raf. 

 1. Leptilon Canadense (L.) Britton. Horse-weed. M. p. 970. Cultivated 

 ground and waste places. Spring to fall. 



19. DOELLINGERIA Nees. 



Leaves lanceolate to ovate ; heads mostly numerous. 



Leaves lanceolate to oblong-lanceolate, acuminate. 1. D. umbellata. 



Leaves ovate to ovate-lanceolate, acute. 2. D. humilis. 



Leaves, at least the lower, obovate; heads commonly few. 3. D. infirma. 



1. DOELLINGERIA UMBELLATA (Mill.) Nees. M. p. 970. Moist thickets. 



Summer and fall. 



2. DOELLINGERIA HUMILIS (Willd.) Britton. M. p. 970. Moist soil. Late 



summer. 

 Delaware— Davhy (Fu.). Laricaster- (P.) . 

 Atlantic— Maj 'a Landing (C), Egg Harbor (Mac). 



3. DOELLINGERIA INFIRMA (Michx.) Greene. M. p. 970. Open woodlands. 



Autumn. 



Philadelphia— West Fairmount Park (Mac). Bucks— Rock Hill (Fr.). 

 Delaware— Darhj, Dr. Geo. Smith (Fu.), Wawa, Dr. J. B. Brinton (He.), 

 Swarthmore (Pr.), Concord (W. Tr.). Chester— (P.). Lancaster— (P.). 

 Northampton — (P.). 



Gloucester — Near Mickleton (He.), Swedesboro (Li.). Mercer — Tren- 

 ton (C). Hunterdon — Rosemont (C). 



New Castle — Hand's, Allapokas Hills. Rather scarce. 



20. lONACTIS Greene. 

 1. loNACTis LiNARiiFOLius (L.) Greene. M. p. 971. Dry soil. Summer 

 and fall. 



21. BACCHARIS L. 

 1. Baccharis halimipolia L. Groundsel-tree. M. p. 971. Salt marshes 

 and along tidal rivers. Autumn, 

 Delaware— Cxum. Creek, C. E. Smith (B. C), mouth of Ridley Creek 

 (Fu.), Marple, Dr. Geo. Smith (Fu.) (W. Tr.), Haverford near West 

 Chester Pike, Darby Creek (B. Sm.), Williamson, one plant (Wn.). Lan- 

 caster—Once found at Pleasant Grove (Ca.). 

 New Jersey— Common. 



New Castle — Giant's Cave, Tatnall; Iron Hill, Cherry Island, Commons 

 and Tatnall ; common at Collins '. 



