152 FLORA OF PHILADELPHIA. 



11. Eanunculus bulbosus L. Common Buttercup. M. p. 427. Fields and 



roadsides. Early summer. 



12. Eanunculus Pennsylvanicus L. f. Bristly Buttercup. M. p. 427. 



Wet, open places. Summer. 



Bucks— Andalusia, M art. (B. C). Delaware— {P.). Lancaster— Col- 

 lins' Ferry (Ca.). Berks— Wernersville (Te.). Northampton— (P.). 

 Dauphin— (P.). 



Burlington— Pemberton (C). Comdem— Camden (C;). Gloucester— 

 Eepaupo (He.) (Sa.). Monmouth— Freehold (C). Mercer— Trenton, 

 Princeton (C). Somerset— Black Swamp (C). Hunterdon— Stockton 

 (C). 



New Castle— Hamburg Boad, Bed Lion Creek. 



13. Eanunculus repens L. M. p. 427. Fields and roadsides. Early 



summer. 



Philadelphia*-^ (P.). Bucks— Bristol (Fr.). , Delaware— Swarthmore 

 (Pr.), Tinicum, Dr. Geo. Smith (B. Sm.). Lehigh — Salsbury (Kr.). 

 Northampton — (P.). 



Camden — Kaiglm's Point (He.) (Wn.). Monmouth — Deal Beach 

 (Wn.). 



New Castle— Ogletown, frequent. , 



14. Eanunculus septenteionalis Poir. Marsh Buttercup. M. p. 427. 



Swamps and low grounds. Early summer. 



15. Eanunculus hispidus Michx. M. p. 428. Dry woods and thickets. 



Spring. 



16. Eanunculus fascicularis Muhl. Early Buttercup. M. p. 428. Woods. 



Spring. 



17. Eanunculus parvulus L. M. p. 428. Ballast. Summer. 



Camden— Kaighn's Point (Ja.). 



18. Eanunculus abvensis L. M. p. 428. Waste grounds. Summer. 



Ocean — Toms Eiver (C). 



18. BATEACHIUM S. F. Gray. White Water Crowfoot. 



Leaves sessile, circinate, the segments short, spreading around the stem, 



nearly in one plane; beak of a^hene minute. 1. B. divaricatum. 



Leaves more or less petioled, not circinate. 2. B. trichophylVwm. 



1. Batrachium divaricatum (Schrank.) Wimm. M. p. 429. Ponds and 



streams. Summer. 

 Monmouth— Squan and Shark rivers (C). 



2. Batrachium trichophyllum (Chaix.) Bossch. M. p. 429. Ponds and 



streams. Summer. 



Philadelphia— Lower Wissahickon (Je.), W. Fort Mifflin (Sa.). Bucks 

 — Tullytown (Cr.), near Sellersville (Fr.), Penn Valley (Ja.). Delaware 

 —Darby Creek, H. C. Barker (B. C), Tinicum, Dr. Geo. JSmith (Fu.), 

 Haverford (Gi.). Chester — (P.). Lancaster — Lititz (Ca.) (Pr.). 

 Lehigh— Helfrich 's Spring (Kr.). 



Burlington — Medford (Br.). Camden — Camden, Mart. (B. C). 



