264 FLOE A OF FHILADELFHIA. 



1. Convolvulus sepium L. Hedge Bindweed. M. p. 753. Moist fields and 



thickets. Summer. 



2. Convolvulus spithamaeus L. Upright Bindweed. M. p. 753. Dry, 



sandy or rocky soil. Summer. 



Fhiladelphia—ByheTYj, Mart. (B. C), Germantown (St.). Buchs— 

 Rock Hill (Cr.), Pipersville, Sellersville, Pineville (Ws.), Glenlake (Ke.). 

 Z^eZmrare— Near Haverford (Mac), Lansdowne (Pe.), Swarthmore (Pr.), 

 Middletown (B. Sm.), Concord (W, Tr.). Chester— (F.). Lancaster— 

 (P.). Lehigh— 'East of Allentown (Kr.). Northampton— {V.). 



^oZe?n— Riddleton (Li.) (Mac.) (Wn.). Cumberland— ^fineism^ (C). 

 (Somersei— Peapack, Rocky Hill (C). Hunterdon— 'Rosemont, Lambert- 

 ville (C). 



New Cas*i!e— General and frequent. 



3. Convolvulus arvensis L. Small Bindweed. M. p. 753. Fields and 



waste places. Summer. 



Family 2. OUSCUTACEAE Dumort. Dodder Family. 



1. CUSCUTA L. Dodder. 



Corolla-scales crenulate; stigmas slender; capsule circumscissile. 



1. C. Epilinum. 

 Corolla-scales fringed ; stigmas capitate ; capsule indehiscent. 



Sepals united below into a gamosepalous calyx. 



Flowers very nearly sessile; corolla persistent at the base of the 

 capsule. 

 Corolla-scales ovate, fringed all around; calyx-lobes obtuse. 



2. C. arvensis. 

 Corolla-scales abortive, or of a few processes ; calyx-lobes acut- 



ish. 3. C. Folygonorum. 



Flowers distinctly pedicelled; corolla enclosing or capping the cap- 

 sule, or at length deciduous. 

 Scales small, irregularly fringed; capsule depressed-globose. 



4. C. Cephalanthi, 

 Scales long, fringed mainly above; capsule pointed. 



5. C. Gronovii. 

 Sepals separate, subtended by similar bracts. 6. C. compacta. 



1. CuscuTA Epilinum Weihe. M. p. 754. Flax fields. Summer. 



JBwfcs — Plumsteadville (Fr.). Chester— (F.). Lancaster— (P.). 

 New Casiie— Centerville, Commons. 



2. CuscuTA ARVENSIS Beyrich. M. p. 755. Rather dry soil on various low 



plants. Summer. 



Fhiladelphia — Fairmount Park (Wn.). Bitcfcs — Sellersville (Fr.), 

 Kintnersville (P.). Lancaster— (F.). 



Gloucester— SwedeshoTo (Li.), Cape Moi/— Cape May, Mart. (B. C). 

 Atlantic — B.ammonton (C), Egg Harbor (Le.). Monmouth — Shav^i. 

 River (C). Mercer— Trenton (C). Hunterdo7i—l^osemont (C). 



New Castle— On Aster, Trifolium, etc. Becoming common. 



3. CuscuTA PoLYGONORUM Engelm. M. p. 755. Wet places, often on Poly- 



gonum. Summer. 

 Loncaster— Safe Harbor (Ca.). Dauphin— (F.). 

 New Castle— CheTTj Island, Hamburg Cove. 



