CRVCIFEEAE. 159 



1. Lepidium campestke (L.) K. Br. Cow-cie!i.s. M. p. 445. Fields anci 



waste places. Summer. 



2. Lepidium Draba L. M. p. 445. Ballast. Spring. 



Camden— Kaighn'B Point (Ja.) (Wn.). 



3. Lepidium ruderale L. M. p. 445. Roadsides, waste places, and ballast. 



Summer. 



Philadelphia— Navy Yard, Mart. (B. C), West Philadelphia (Mac), 

 Girard Point (Te.). Northampton — 'Easton, Farter (B. C). 



Burlington— Moorestown (Sts.). Camde?i—Kaighn's Point. Mercer- 

 Trenton (C). 



New Castle — Streets, Port Penn, Delaware City, wharves, Tatnall; 

 Swedes' Church, Wilmington, Commons. 



4. Lepidium Virginicum. M. p. 446. Fields and roadsides. Summer. 



5. Lepidium apetalum Willd. M. p. 446. Dry places. Summer. 



Philadelphia — Philadelphia, Mart. (B. C), Greenwich Point (Te.). 

 Bucks— Point Pleasant (Fr.). 



Cam de?i— Camden, ballast. Mart. (B. C). Gloucester— Near Mickleton 

 (He.), near Swedesboro (Li.). 



Lepidium graminifolium L. Ballast. 



Camden— Kaighn's Point (Ja.). 

 Lepidium Smithii Hook. Ballast. 

 Philadelphia— Girard Point (Te.). 



2. CORONOPUS Gaertn. Wart Cress, Swine Cress. 



Pod rugose, not crested. 1. C. didymus. 



Pod coarsely wrinkled, crested. 2. C. Coronopus. 



1. Coronopus didymus (L.) J. E. Smith. M. p. 446. Waste places and 



ballast. Summer. 

 Philadelphia— Bjherry, Mart. (B. C), Greenwich Point, Girard Point 

 (Te.). 

 Camden— Kaighn's Point (Ja.) (Wn.). 



2. Coronopus Coronopus (L.) Karst. M. p. 446. Ballast. Summer. 



Philadelphia— Green-wich Point, Girard Point (Te.). Chester — (P.). 

 Comden— Kaighn 's Point, C. A. Boice (B. C.) (Wn.). 



3. THLASPI L. 

 1. Thlaspi arvense L. Pennycress. M. p. 447. Waste places and ballast. 

 Summer. 

 Philadelphia — Fairmount Park, Mart. (B. C), Columbia Bridge, E. 

 Difenbaugh (B. C). Bucks— Roek Hill (Fr.). Montgomery— Jenkin- 

 town (Pr.). Lancaster— Paradise (St.). 



Conrden— Kaighn's Point (Ja.). if ercer— Trenton (C). 



4. ALLIARIA Adans. 

 1. Alliakia Alliakia (L.) Britton. Hedge Garlic, Garlic Mustard. M. p, 

 447. Waste places, woods, and along roadsides. Spring. 

 Philadelphia— "East of School Lane, Germantown (VP.). Montgomery 

 —Above Flat Roek Tunnel (VP.). 



