CAPPARIDACEAE, 165 



wore -Valley of Darby Creek (B. Sm.)- Chester— Uibhert's Mill (Pr.), 

 Phoenixville (Sa.). Lancaster— (P.). Berks— Beading (Wn.). 



3. Arabis hiksuta (L.) Scop. M. p. 464. Rocks. Summer. 



Bucks— Ne&T Sellersville (Fr.). Chester— Chester Valley (Le.)- Lan- 

 caster—York Furnace (Or.). jBerAs— Opposite Reading (Wn.). North- 

 ampton— (P.). 



Gloucester— Svfedeahoro (Li.). Mercer— Hightstown (C). 



4. Arabis laevigata (Muhl.) Poir. M. p. 464. Rich wooded hills. Spring. 



5. Arabis Canadensis L. Sickle-pod. M. p. 464. "Woods and ravines. 



Summer. 



6. Arabis glabra (L.) Bernh. Tower Mustard. M. p. 465. Rocks and 



fields. Summer. 

 Delaware — Upper Providence (Fu.). Northampton — Easton, Porter 

 (B. C). 

 Cape May— Cape May Point (C). 

 New Castle— ISth street near Woodlawn, Tatnall and Commons. 



25. ERYSIMUM L. 

 1. Erysimum cheiranthoides L. Wormseed or Treacle Mustard. M. p. 

 465. Banks of streams and ballast. Summer. 

 Philadelphia— Old Navy Yard, I. Burk (He.), Germantown (Me.), Gib- 

 son's Point (Mac), Girard Point (Te.). Lancaster — York Furnace, 

 above Peach Bottom (Pr.). Dauphin— (P.). 



26. ALYSSUM L. 

 1. Alyssum alyssoides (L.) Gouan. M. p. 466. Fields. Summer. 



Philadelphia— CheBtnut Hill, C. F. Barker (B. C), Mount Airy (Me.). 

 DeZoware— Concord (W. Tr.). Northampton— 'Easton, Porter (B. C). 



27. KONIGA Adans. 

 1. KoNiGA MARITIMA (L.) R. Br. Swcct Alyssum. M. p. 466. Occasion- 

 ally escaped. 



28. HESPERIS L. 

 1. Hesperis matronalis L. Dame's Violet, Rocket. M. p. 467. Fields 

 and roadsides. Summer. 



Family 8. CAPPARIDACEAE Lindl. Caper Family. 



Pod long-stipitate on its pedicel. 1. Cleome. 



Pod nearly or quite sessile on its pedicel. 2. Polanisia. 



1. CLEOME L. 

 1. Cleome spinosa L. Spider-flower. M. p. 468. Waste places. Summer. 



2. POLANISIA Raf. 

 1. Polanisia graveolens Raf. M. p. 468. Sandy and gravelly shores. 

 Summer. 

 Philadelphia — Navy Yard (Te.). Lancaster — York Furnace, Peach 



