44 FAM. 49, 50. 



a. Lateral leaflets not falcate; seed bitter and astringent; — bark smooth- 

 ish, close with flat ridges; foliage glabrous; leaflets 3-7-9, oblong, 

 acuminate; fruit subglobose to pyriform with tardily separating 

 husk; nut angled, often brown. Dunes. - Hicoria (Carya) glabra, Pignut 



49. Myricaceae, Bayberry Family. 



Mostly dioecious, aromatic shrubs with alternate, 

 resinous-dotted leaves; flowers without perianth disposed 

 in axillary aments; the sterile ones consisting of 2-8 stamens 

 on a bract, the fertile ones consisting of a 1-celled ovary 

 with 2 filiform stigmas, and at its base surrounded with 

 a row of scales; fruit a dry 1-seeded drupe. 



Leaves entire or toothed; scales of the ovary 2-4, minute. - Morella (Myrica) 

 M. cerifera, Wax-myrtle. An evergreen shrub; leaves leathery, oblanceolate, 

 entire, but often toothed toward the apex, tapering into slender petioles; 

 staminate aments numerous, with wedge-shaped bracts; pistillate aments 

 shorter, with broadly-ovate bracts; fruit white. Wet sandy soil; flowers 

 in Spring, fruit in Fall. 



M. inodora. An evergreen shrub with whitish bark; leaves leathery, oblong- 

 obovate, entire, with short, partially winged petioles; staminate aments 

 stout, pistillate slender; fruit black, often solitary. Margins of pinebarren 

 ponds. Early Spring. 



50. Salicaceae, Willow Family. 



Dioecious trees or shrubs with alternate simple leaves, 

 and flowers in bracted aments; instead of the perianth 

 a gland or a disk; stamens 2-many; ovary 1-celled, style 

 short and more or less divided, stigmas 2-lobed; fruit a 

 capsule. 



1. Trees with furrowed bark, the stout twigs terminated by scaly winter- 

 buds; leaves palmately veined, coarsely toothed or lobed, the 

 petioles subtended by membranous caducous stipules; flowers 

 appearing before the leaves; stamens more than 10 with red or 

 purple anthers; style short with dilated stigmas, - Populus 



P. deltoides, Cotton-wood, Poplar, Aspen, Large tree with deeply ridged gray- 

 ish trunk, spreading angular branches, stout olive-green twigs, and glab- 

 rous foliage; leaves broadly ovate to deltoid, the flattened petioles nearly 

 as long as the blades; stamens more than 60; bracts of aments scarious. 

 Riverbanks. Early Spring. 



1. Trees or shrubs with more or less flaky bark, the slender flexible twigs 

 carrying winterbuds with a single scale ea;h; leaves pinnately 

 veined, finely toothed; petioles short with leafy or scaly stipules; 

 flowers appearing with or before the leaves; stamens less than 

 10, mostly 2, with yellow or reddish anthers; style usually short, 

 stigmas filiform, ______--- Salix 



S. amphibia. Small tree or shrub with purplish twigs; leaves linear-lanceolate 



