384 REPORT OF NEW JERSEY STATE MUSEUM. 



gg. Petals 5. Viburnum, p. 708 



ff. Flowers white, in loose drooping panicles, petals long and 

 slender. Chionanthus, p. 636 



ee. Whorled on small branchlets or scattered and alternate. 

 /. Fully developed leaves at least 50 x 25 mm. 

 g. Flowers small, fruit a berrj^ 



h. Small branches swollen at each joint, berry black, 

 nearly sessile. Dirca, p. 574 



hh. Joints not swollen. 



i. Fruit blue, pedicelled. A'yssa, p. 603 



ii. Fruit red sessile, flowers early, before the 

 leaves. Benzoin, p. 460 



Hi. Flowers in cymes, white, fruit blue. 



Cornus, p. 601 

 gg. Flowers large, showy. 



h. White, fruit cone-like, wth red seeds hanging 

 from it by threads. Magnolia, p. 446 



hh. Maroon, fruit fleshy, cylindrical, banana-like. 



Asiinina, p. 448 

 hhh. Pink or white, fruit a dry dehiscing capsule. 



Ericacecc, p. 612 

 //. Fully developed leaves less than 50 x 25. 



g. Flowers white, bell-like, or pink, cup-shaped. 



Ericacecc, p. 612 

 gg. Acorn bearing tree, flowers in catkins. Quercus, p. 404 

 eee. Whorled at intervals down the stem. 



f. Flowers white, in globular masses. Cephalanthus, p. 702 

 ff. Flowers purple, in axillary whorls. Dccodon, p. 575 



eeee. Leaves scattered along the stem, not opposite. Salix, p. 392 

 cc. Leaves undulate or sinuate crenate. 



d. Flowers with linear twisted petals, blooming in autumn when the 



leaves are falling. Hamamelis, p. 473 



dd. Flowers small without petals, staminate in catkins, fruit an acorn. 



Quercus, p. 404 

 ccc. Leaves or some of them slightly crenate at the tip ; fruit clusters of 

 sessile wax-covered berries. Myrica, p. 395 



cccc. Leaves regularly, fmely or remotely serrate or dentate. 



d. Leaves oblique at base, and assymetric, ovate or cordate. 



e. Flowers attached to a membranaceous bract, petals cream 

 colored, fruit a hard green, globular berry. Tilia, p. 548 



ee. Flowers inconspicuous greenish, not attached to a bract. 



f. Fruit a many-seeded fleshy berry. Morus, p. 414 



ff. Fruit a globular rather dry berry. Celtis, p. 413 



///. Fruit a small winged seed. Ulnius, p. 412 



dd. Leaves symmetrical at base, or nearly so, not oblique, shape 



varied, lanceolate to obovate, oval or deltoid. 



e. No petals. 



f. All the flowers in short, downy catkins, erect or pendant, 

 seeds copiously silky with long white hairs. 



Salicacece, p. 390 



