152 FLORA OF FHILADFLPHIA. 



11. Eanunculus buxbosus 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, Mort. (B.C.). Delaware— {V.). Lancaster— Col- 

 lins' Ferry (Ca.). BerJi^s— Wemersville (Te.). Northampton — {P.). 

 Dauphin — (P.). 



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

 Repaupo (He.) (Sa.). Mo?!mowt7i— Freehold (C). i/ercer— Trenton, 

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

 (C). 



New Castle — Hamburg Road, Red Lion Creek. 



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



summer. 



Philadelphia— (F.). Bucks— Bristol (Fr.). Deiawore— Swarthmore 

 (Pr.), Tinicum, Dr. Geo. Smith (B. Sm.). LeM^r/i — Salsbury (Kr.). 

 Northampton— {P.). 



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

 (Wn.). 



New Castle — Ogletown, frequent. 



14. Ranunculus septentrionalis Poir. Marsh Buttercup. M. p. 427. 



Swamps and low grounds. Early summer. 



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



Spring. 



16. Ranunculus fascicularis Muhl. Farly Buttercup. M. p. 428. Woods. 



Spring. 



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



Camden— Kaighn's Point (Ja.). 



18. Ranunculus arvensis L. M. p. 428. Waste grounds. Summer. 



Ocean — Toms River (C). 



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



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



nearly in one plane; beak of achene minute. 1. B. divaricatum. 



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



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



streams. Summer. 

 Monmouth Sqnan and Shark rivers (C). 



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



streams. Summer. 



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

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

 —Darby Creek, R. C. Barker (B. C), Tinicum, Dr. Geo. Smith (Fu.), 

 Haverford (Gi.). Chester — {P .) . Lancaster — JAtitz (Ca.) (Pr.). 

 Ze/jro/i— Helfrieh's Spring (Kr.). 



B«rM«^*o?! — Medford (Br.). Comden — Camden, Mart. (B. C). 



