PLANTS OF SOUTHERN NEW JERSEY. 399 



Hicoria cordiformis (Wang.). Bitter-nut Hickory. 



Juglans cordiformis Wangenheim, N. A. Holz, p. 25. 1787 [New York and 



New England]. 

 Hicoria minima Britton 219. 



Woodland of the Niorthern and Middle districts, occasional. 

 Fl. — Mid-May to early June, when the leaves are almost fully 

 expanded. Fr. — Autumn of the first season. 



Middle District.— Vemh<irion Jnc. (C), Medford (S). 



Hicoria microcarpa (Nutt.). Small-fruited Hickory. 



Carya microcarpa Nuttall, Gen. II. 221. 1818 [Banks of the Schuylkill, near 



Philadelphia]. 

 Hicoria microcarpa Britton 219. 



Reported in Britton's Catalogue from Sea Breeze, Cumberland 

 Co., on authority of Mr. Albert Commons. 



Fl. — Mid-May to early June, when the leaves are almost fully 

 expanded. Fr. — Autumn of the first season. 



Order FAGALES. 



Family BETULACE.^.. Birches. Hazels, etc. 



a. Fruit small, narrowly margined or winged between the bracts of a 

 cone-like ament. 

 b. Bracts of ament deciduous with the winged seeds. 



c. Bark chalky white, peeling somewhat, leaves deltoid, acuminate. 



Betula populifolia, p. 400 



cc. Bark reddish or greenish brown, peeling off in thin, ragged 



sections, leaves rhombic, cuneate at base, light colored beneath. 



B. nigra, p. 401 



ccc. Bark brown, net peeling off in layers, leaves ovate, cordate or 



rounded at base. B. lenta, p. 401 



bb. Bracts woody and persistent. Alnus, p. 402 



ac Fruit small in small aments, each seed subtended by a flat, green 



bractlet, much cut and lobed. Carpinus, p. 399 



aaa. Fruit small, enclosed in an inflated, green bag-like bractlet. Ostyra, p. 400 



aaaa. Fruit a large, woody-shelled nut inclosed by a leafy involucre. 



Corylus, p. 400 



CARPINUS L. 



Carpinus caroliniana Walt. Hornbeam, Water Beech. 



Carpinus caroliniana Walter, Fl. Cor. 236. 1788 [South Carolina]. — Britton 



221. 

 Carpinus americana Knieskern 28. 



