PLANTS OF SO'UTHERNl NEW JERSEY. 543 



Middle District.— Moorestown (NB), MuUica Hill (H), Mannington (C), 

 Klsinboro (C). 



CELASTRUS L. 



Celastrus scandens L. Climbing Bittersweet. 



Celastrus scandens Linnaeus. Sp. PI. 196. 1753 [Cadada].— Britton 76. 



Frequent in thickets in the northern counties and southward 

 along* the coastal island to Cape May; occasional in the Middle 

 district. 



Fl. — Late May to early June. Fr. — October, persisting 

 through winter. 



Middle District. — Camden (Bassett), Washington Park, Swedesboro. 

 Coast Strip.— Sandy Hook, Spring Lake (C), Atlantic City, Ocean City 

 <S), Piermont (S), Holly Beach, Anglesea, Cold Spring (S). 



Family STAPHYLEACEyE. Bladder-nuts. 



STAPHYLEA L. 



Staphylea trifolia L. Bladder-nut. 



Staphylea trifolia Linnseus, Sp. PI. 270. 1753 [Virginia]. — Knieskern 11. — 

 Willis 16.— Britton 78. 



Frequent in rocky woods of the northern counties ; rare within 

 our limits and only in the Middle district. 



Fl. — Early May to late May. Fr. — July to August, persisting 



into October. 



Middle District. — Squan (Kn), Camden Co., along the Delaware below 

 Kaighns Pt. (P), Woodstown, Sharptown. 



Family ACERACE^E. Maples. 



A'c'v io the Species. 



a. Leaves 3- or 5-foliate. Acer negundo, p. 545 



aa. Leaves simple, flowers in dense clusters, appearing before the leaves. 



b. Petals none, flowers greenish, leaves deeply 5-lobed, samaras divergent, 



5-7 mm. long. A. saccharinum, p. 544 



bb. Petals present, flowers (and often ripe samaras) crimson, leaves 3- 



lobed or with two additional shorter basal lobes, samaras incurved, 



i.S-2.5 cm. long. 



c. Leaves small, with three short lobes, sparingly toothed and usually 



very pubescent below. A. ritbriim carolinianunt, p. 544 



cc. Leaves larger, with 3-5 lobes, sharply toothed, usually nearly 



glabrous. A. rubruni, p. 544 



