526 PROCEEDINGS OF THE ACADEMY OF [Dec, 



Insert : 

 60a. Carex annectens Bicknell. 5 



Frequent on dry open barrens. 

 Delaware.— Mineral Hill; Williamson; Wawa. 

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

 Barrens. 



— Nottingham Barrens. 



f61. Carex retroflexa Muhl. Read: 



Local on moist depressions or grassy open. 

 Delaware. — Bear Hill; Mineral Hill. 

 Chester. — West Chester. 



— Nottingham Barrens. 



Insert : 

 161a. Carex leersii Willd. 6 



Moist soil along stream. 

 Chester. — Nottingham Barrens. 



Insert: 

 f6lB. Carex incomperta Bicknell. 7 



Locally abundant in Serpentine swamps. Identification con- 

 firmed by Mr. E. P. Bicknell. 

 Delaware. — Williamson. 

 Chester. — West Chester. 



Insert : 

 f61c. Carex interior Bailey. 



Locally abundant in Serpentine swamps. 

 Chester. — Cedar Barrens. 



— Nottingham Barrens. 



62. Carex scoparia Schkuhr. Read: 



Common on dry barrens. 



Delaware. — Mineral Hill; Williamson. 



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

 Barrens; West Chester; Unionville. 



— Nottingham Barrens. 



ill. Torr. Bot. Club, XXXV (1908), 492. 

 c Cf. Mackenzie, Bull. Torr. Bot. Club, XXXVII (1910), 245. 

 ' Bull. Ton: Bot. Club, XXXV (1908), 494. 



