PLANTS OF SOUTHERNl NEW JERSEY. 543 



Middle District.— Moortstovfn (NB), Mullica 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. 



Fl. — ^Late May to early June. Pr. — 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 STAPHYLEACE^. Bladder-nuts. 



STAPHYLEA L. 



Staphyiea trifolia L. Bladder-nut. 



Siaphylea trifolia Linnaeus, Sp. PI. 270. 1753 [Virginia]. — Knieskern li. — 

 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 Ottober. 



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

 Kaighns Pt. (P), Woodstown, Sharptown. 



Famiily ACERACE^. Maples. 



Key to 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, 



1.5-2.5 cm. long. 



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



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



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



glabrous. A. rubrum, p. 544 



