1910.] NATURAL SCIENCES OF PHILADELPHIA. 569 



147. Viola pedata lineariloba D. C. 



Occasional on dry open barren. 

 Chester. — West Chester. 



|148. Viola fimbriatula Sm. 



Apparently more or less intermediate between this and V. sagittate, 

 Ait., combining the pubescence of the former with the leaf-outline of 

 the latter. Apparently quite uniform, and constant in characters. 

 As neither V. fimbriatula 8m. nor V. sagittata Ait. occur, except 

 sparingly, in this district, the idea of direct or recent hybridism is 

 excluded. 



Common on dry open barren and banks. 



Delaware. — Fawkes Run; Preston Run; Bear Hill; Blue Hill; 

 Middletown Barrens; Williamson; Wawa. 



Chester. — Sugartown Barrens; Serpentine Ridge; Cedar Barrens; 

 West Chester; Brinton's Quarry; Unionville. 



— Nottingham Barrens. 



149. Kneiffia linearis (Michx.) Spach. 



Frequent on dry open barren and banks. 



Delaware. — " Crum Creek" (J. W. Harshberger) ; Williamson 

 (J. B. Br in ton) ; Wawa. 

 Chester. — Cedar Barrens. 



150. Kneiffia fruticosa (L.) Raimann. 



Frequent on dry open barren and banks. 

 Delaware.— 1 ' Media " (J. B. Brinton). 

 Chester. — Serpentine Ridge; West Chester. 



151. Zizia cordata (Walt.) D. C. 



Frequent on dry open barren and edges of thicket. 

 Delaware. — Williamson. 

 Chester. — Unionville. 



fl52. Angelica yillosa (Walt.) B. S. P. 

 Frequent on dry open barren. 

 Delaware. — Mineral Hill; Williamson; Wawa. 

 Chester. — Cedar Barrens (S. S. Van Pelt) ; Unionville. 



— Nottingham Barrens. 



J 153. Nyssa sylvatica March. 

 Occasional in woodland. 

 Delaware. — Williamson (J. W. Harshberger). 

 Chester. — Unionville. 



