PLANTS OF SiOUTHERNi NEW JERSEY. 543 



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

 Elsinboro (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. 



/?/.— Late May to early June. Fr.— October, persisting 

 through winter. 



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

 Coast Strip.— Q^nAy Hook, Spring Lake (C), Atlantic City, Ocean City 

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



Family STAPHYLEACE^. 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. 



PI- — ^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^. Maples. 



Key to the Species. 



a. Leaves 3- or S-foliate. Acer negundo, p. 54S 



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



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



S-7 mm. long. A. saccharinum, p. S44 



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



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



1. 5-2. 5 cm. long. 



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



very pubescent below. A. rubrum carolinianum, p. 544 



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



glabrous. A. rubrum, p. S44 



