7o8 REPORT OF NEW JERSEY STATE MUSEUM. 



bb. Leaves simple, flowers white in corymbs. 



c. Leaves acutely and rather deeply three-lobed, coarsely dentate. 



Viburnum acerifoUum, p. 708 

 cc. Leaves ovate or orbicular, coarsely dentate, veins prominent. 

 d. Leaves glabrous or with pubescence in the axils of the veins 

 beneath. 



e. Petioles glabrous. V. dentatum, p. 709 



ee. Petioles very pubescent. V. scabrellum, p. 709 



dd. Leaves pubescent over the whole lower surface. 



V. venosum, p. 710 

 ccc. Leaves ovate or oval, entire, crenate or finely serrate. 



d. Leaves obscurely crenate or entire, cyme peduncled. 

 e. Peduncle shorter than the cyme, leaves smaller. 



V. cassinoides, p. 710 

 ee. Peduncle longer than the cyme, leaves larger. 



V. nudum, p. 710 

 dd. Leaves finely serrate, cyme nearly or quite sessile. 



V. prunifolium, p. 711 

 bbb. Leaves simple, flowers tubular yellowish, in threes. Diervilla, p. 712 



SAMBUCUS L. 



Sambucus canadensis L. Elder. 



Sambucus canadensis Linnaeus, Sp. PI. 269. 1753 [Canada]. — Knieskern 16. — 

 Britton 121. 



Common in rich soil in open places throughout the Northern, 

 Middle and Coast districts, and occasional on the Cape May 

 peninsula. The only record from the Pine Barrens seems to 

 be based upon an introduced plant, and it is quite likely that there 

 are other similar occurrences. The Elder is, however, certain^ 

 not a native of the "Pines," although it may intrude along some 

 of the larger streams, spreading up from the coast. 



Pi. — Early June to early July. Pr. — Late July to late August, 

 sporadically into September. 



Middle District. — Farmingdale, New Egypt, Fish House, Arneys Mt. (S), 

 Camden (T), Medford (S), Andrews, Oaklyn (S), Washington Park, 

 Mickleton, Swedesboro, Yorktown, Centerton (S), Beaver Dam, Pancoast- 

 ville. 



Coast Strip. — Surf City (L), Barnegat City Jnc. (L), Cox's, Manahawkin, 

 Ocean City (S), Piermont (S), Wildwood (UP). 



Cape May. — Cape May. 



VIBURNUM L. 

 Viburnum acerifolium L. Maple-leaved Viburnum. 



Viburnum acerifolium Linnaeus Sp. PI. 268. 1753 [Virginia]. — Britton 122. 



