Tennessbk Floea. 65 



HICKORIA Raf. (Carya Nutt.) 



Hickoria Pecan (Marsh.) Britton. Pecan. Tennessee and 

 Mississippi bottoms in West Tennessee. Some large trees in 

 the vicinity of Nashville have been planted by fearly settlers. 



H. minima (Marsh.) Pritton. Carya amara Nutt. Swamp 

 hickory. Bitternut. Swampy grounds along Cumberland 

 River below Nashville. May, June. Fruit in October. 



H. ovata (Mill.) Britton. Carya alba Nutt. ShelJ-bark 

 hickory. O. S. May. Fruit in September. 



H. laciniosa (Michx. fil) Sargent. Big shag bark. King- 

 nut. Carya sulcata Nutt. In rich soil. O. S. May. Fruit 

 in September, October. 



H. alba (L.) Britton. Carya tomentosa Nutt. Mockernut. 

 O. S. May. Fruit in October. 



H. microcarpa (Nutt.) Britton. Cary^ microcarpa Nutt. 

 Lookout Mt. May. Fruit in October. ^ 



H. glabra (Mill.) Britton. Carya porcina Nutt. Pignut 

 hickory. Very frequent on the Cumberland Plateau. May, 

 June. Ffuit in October, November. 



I *H. Carolinae-septentrionalis Ashe. Tennessee. (Vide Il- 

 lustrated Flora; Appendix, page 511.) 



SALICACE^ Lindl. 

 POPULUS L. 



Pqpulus alba L. Abele. White or silver-leaf poplar. Na- 

 tive from Europe. Roadsides and yards. Difficult to eradi- 

 cate where it is undesirable. March. 



P. balsamifera candicans (Ait.) A. Gray. Balm of Gilead. 

 Transplanted from the Northern territories, it escaped cultiva- 



*H. Carolinae-septentrionalis Ashe. A small tree attaining a max- 

 imum height of eighty feet and a diameter of two and one-half feet, 

 with gray bark, hanging in long, loose strips; bud scales, from eight 

 to ten, imbricate, the inner greatly enlarging in leafing, and tardily 

 deciduous; terminal bud, ovate-lanceolate, truncate, the scales spread- 

 ing, barely one-third inch long; lateral buds, oblong; twigs very 

 slender, one-eighth inch thick, glaucous, smooth, purplish-brown; 

 staminate aments in threes, glabrous on short peduncles at base of 

 shoots of the season; stamens, glabrous; ovary, glabrous; young fo- 

 liage blackening in drying, glabrous, ciliate, with few resinous glob- 

 ules; leaflets, three to five; the two upper, three-fourths inch to one 

 and one-fourth inches wide, four to six inches Ibng, lanceolate; lower' 

 pair, often smaller; fruit, subglobose.three-fourths inch to one and 

 one-fourth inch long; .husk, soon falling into four pieces; nut, white 

 or brownish, much compressed, angled, cordate or subcordate at top, 

 thin-shelled; seed, large and sweet. 



