1912.] NATURAL SCIENCES OF PHILADELPHIA. 537 



Insert : 

 20f. Carex stipata Muhl. 



Chester. — Nottingham Barrens. 



Insert : 

 20g. Carex rosea Schkuhr. 

 Delaware. — Bear Hill. 



Insert : 

 20h. Carex cephalophora Muhl. 

 Delaware. — Glen Riddle. 



Insert : 

 20i. Carex muhlenbergii Schkuhr. 

 Delaware. — Wajva. 



Insert : 

 21a. Uvularia perfoliata L. 



Delaware. — Preston Run; Bear Hill. 



22. Polygonatum commutatum (R. and S.) Dietr. Add: 

 Delaware. — Glen Riddle. 

 Chester. — Cedar Barrens. 



Insert : 



23a. Sisyrinchium gramineum Curtis. 

 Chester. — Paoli. 



33. Benzoin ^stivale (L.) Nees. 



Delaware. — Williamson. • 



Insert : 

 34a. Rubus argutus Link. 

 Chester. — Cedar Barrens. 

 - — Nottingham Barrens (B. Long). 



36. Amelanchier l.evis Wiegand. 



Chester. — L T nionville (Dr. K. M. Wiegand determines this specimen 

 as a probable hybrid between A. Icevis and A. oblongifolia (T. and 

 G.) Roem. 



— Nottingham Barrens (B. Long). 



