264 FLORA OF PHILADELPHIA. 



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. 



Philadelphia— Byberry, Mart. (B. C), Germantown (St.). Bucks— 

 Bock Hill (Cr.), Pipersville, Sellersvilie, Pineville (Wsi), Glenlake (Ke.). 

 Delaware— Near Haverford (Mac), Lansdowne (Pe<), Swarthmore (Pr.), 

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

 (P.). Lehigh— East of Allentown (Kr.). Northampton— (P.). 



Salem— Biddletpn (Li.) (Mac.) (Wn.). Cumberland— Vineland (C). 

 Somerset— Peapack, Eocky Hill (C). Hunterdon— Eosemont, Lambert- 

 ville (C). 



New Castle— General and frequent. 



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



waste places. Summer. 



Family 2. CUSCUTACEAE Dumort. Dodder Family, 



1. CUSCUTA L. Doddbk. 



Corolla-scales crenulate; stigmas slender; capsule circumscissile. 



1. C. Epilinuni. 

 Corolla-scales fringed ; stigmas capitate; capsule ihdehiscent. 

 Sepals united below : into a gamosepalousi calyx. 



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

 capsule. 

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



%. G. arvensis. 

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

 ish. ... 3. C. Polygonorum. 



Flowers distinctly i pedicelled ; > corolla enclosing or capping the cap- 

 • v sule, or at length deciduous. 



Scales small, irregularly fringed; capsule depressed-globose. 



4. C. Cephalanthi. 

 Scales long, fringed mainly above; capsule pointed. 

 ^ 5. C. GronovU. 



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



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



Bucks— PlumsteadviUe(Fr.). Chester— (P.). Lancaster — (P.). 

 New Castle— Centerville,. Commons. 



2. Cuscuta arvensis Beyrich. M ; p. 755. Rather dry soil on various low 



plants. Summer. 

 ■ Philadelphia — Fairmount Park (Wn.). Bucks — Sellersville (Frs), 

 Kintnersville (P.). Lancaster— (P.). -^juoJ&'i^ tyyw^UXfwQ \ 



Gloucester— Swedesboro (Li.). Gape May— Cape May, Mart. (B. C). 

 Atlantic — Hammonton (C), Egg Harbor (Le.). Monmouth — Shark 

 Biver (C). Mercer— Trenton (C). Hunterdon— Bosemont (C). 

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



3. Cuscuta Polygonorum Engelm. M. p. 755. Wet places, often on Poly- 



gonum. Summer. 

 Lancaster— Safe Harbor ( Ca. ) . Dauphin — ( P. ) . 

 New Castle— Cherry Island, Hamburg Cove. 



