.28 APPENDIX. 



Brassica arvensis (L.) B. S. P. Charlock. Toresdale, I. C. Martindale; Sellersville. 



Brassica campcstris L. Turnip. In fields and waste ground. 



Raphanus Raphanistrum L. Wild Radish. Lower end, I. C. Martindale. 



Barbarea Barbarea (L.) MacM. Winter Cress. In fields and waste places. 



Barbarea strica Andrz. Erect-fruited Winter Cress. Sellersville; Langhorne. 



Barbarea praecox (J. E. Smith) R. Br. Early Winter Cress. South Perkasie; Doyles- 

 town; Penn Valley; Deep Run. 



Roripa sylvestris (L.) Bess. Creeping Yellow Water Cress. Solliday's Island. 



Roripa palustris (L.) Bess. Marsh Cress. In wet places. 



Roripa hispida (Desv.) Britton. Hispid Yellow Cress. Along the Delaware. 



Roripa Nasturtium (L.) Rush. Water Cress. Lower end, I. C. Martindale; Sellers- 

 ville, Perkasie; Solebury, Dr. E. NewlJn Williams. 



Roripa Armoracia (L.) A. S. Hitchcock. Horseradish. Escaped from gardens. 



Cardamine Pennsylvanica Muhl. Pennsylvania Bittercress. In wet places. 



Cardamine parvifora L. Small flowered Bittercress. Near Sellersville; near Bristol, 

 I. C. Martindale. 



Cardamine flexuosa With. Wood Bitter-cress. Tullytown, Three-mile-run. 



Cardamine bulbosa (Schreb.) B. S. P. Spring Cress. In wet meadows. 



Cardamine rotundifolia Michx. American Water-cress. Springfield township. 



Dentaria laciniata Muhl. Common Toothwort. In rich woods. 



Dentaria diphylla Michx. Two-leaved Toothwort. Nockamixon, Dr. T. C. Porter. 



Dentaria heterophylla Nutt. Slender Toothwort. Near Quakertown, (M. C.) 



Lunaria annua L. Honesty. Nockamixon, Dr. T. C. Porter. 



Bursa Bursa-pastoris (L.) Britton. Shepherd's Purse. In waste grounds. 



Camelina sativa (L.) Crantz. False Flax. In waste places. 



Camelina microcarpa Andrz. Small-fruited False Flax. Penn Valley. 



Draba verna L. Early Whitlow-grass. In fields and roadsides. 



Draba Caroliniana Walt. Carolina Whitlow-grass. Islands of the Delaware near 

 Point Pleasant. 



Stenophragma Thaliana (L.) Celak. Mouse-ear Cress. On rocky hillsides. 



Arabis lyrata L. Rock Cress. In rocky and sandy places. 



Arabis hirsuta (L.) Scop. Hairy Rock-cress. Rocks along the Delaware. 



Arabis laevigata (Muhl) Poir. Smooth Rock-cress. In rocky woods. 



Arabis Canadensis L. Sickle-pod. In woods. 



Hesperis matronalis L. Dame's Violet. Sellersville. 



Family 3. Capparidaceae Liiidl. 



• f 

 Cleome spinosa L. Spider-flower. Escaped at Bristol. 



Family 4. Resedaceae S. F. Gray. 

 Reseda Luteola L. Dyer's Rocket. Roadsides near Pleasant Hill, (M. C). 



Order 13. SARRACENIALES. 

 Family i. Droseraceae S. F. Gray. 



Drosera rotundifolia L. Round-leaved Sundew. Bogs i'n Springfield, (M. C.) ; Tul- 

 lytown. 

 Drosera intermedia Hayne. Spatulate-Ieaved Sundew. Bogs near Tullytown. 



