20 KEY FOR THE DETEKMIN ATION OF THE 



(c) Twigs angled, frequently bearing tAvo flat- 

 tened thorns at the base of each leafstem ; 

 leaflets not toothed, opposite on the leafstem, 

 over 11 in number ; liowers white ; fruit a 



dry pod ; bark furrowed, not thorny, (p. 54.) Yellow Locust. 



{d) Twigs round, stout ; frequently compound 

 thorns scattered over limbs and trunk ; 

 leaves, frequently twice compound, with 

 rather small, toothed leaflets ; fruit a long, 



dark brown, pulpy, many-seeded pod. (p. 56.) Honey Locust. 



(e) Twigs sticky or clammy; fruit a dry pod; 

 Macon county, also cultivated ; a shrub or in 



cultivation a small tree. (p. 55.) Clammy Locust. 



(/) Twigs smooth, bearing prominent brown 

 buds ; leaflets sharply toothed, smooth ; 

 flowers white, small, in large clusters ; fruit 

 small, red and berry-like ; bruised bark on 

 twigs bitter and scented like cherry bark ; 



highest mountains Mountain Ash^. 



ig) Twigs not thorny or sticky ; usually from 2 to 

 4 buds above eacli leaf-scar ; sharply toothed 

 leaflets opposite on leafstem, over 3 inches 

 long, 5 to 13 in number ; fruit a nut, with a 

 husk dividing in 4 parts. — Hickories. 



Leaves and leafstems smooth, not hairy; 

 leaflet 6 to 7 : buds scaly. 



Leaflets 5, smooth ; no resinous particles 



on lower surface ; nut not angled, wath 



a thick shell and thin husk, often pear- 

 shaped ; bark not scaly, (p. 88.) PiGNUT. 



Leaflets very large, 5 or 7, smooth, but 



thickly dotted beneath with resinous 



I^articles; twigs, s-mootli, shining, i^ur 



pie-brown ; nut angled, whitish or 



mealy, rather thin shelled ; the husk 



greenish-brown, rougliened with min- 

 ute prominencies, often splitting to the 



base; large trees with shaggy or loose (Hickory ^ 



bark ; common, (p. 88.) Red heart or Smallnut 



Leaflets 5. smooth ; nut white, small, 



sharply angled, with thin, white shell- 



and thick husk, the fruit globular; 



bark very shaggy ; trees of dry or rocky (Hickory^. 



ridges Small or Carolina Shagbark 



Leaflets 5 to 11, downy or hairy beneath ; 

 buds scaly. 



Leaflets 5 or 7, soft-velvety beneath ; 



nut with thick husk and thin, white (Hickory. 



shell; trees with shaggy bark. (p. 86.)....Shag OR Scaly-bark 



Leaflets 5 to 9, soft downy beneath ; 



twigs and buds very stout ; nut brown, 



oblong, thick-shelled ; husk thick ; 



large trees of low grounds, with shaggy 



bark; infrequent Large Shagbark Hickory*. 



iPyrus aniericana, (Marshall) De Candolle. 

 2Hlcoria odorata, (Marshall) Sarjjent. 



sRicoria carollnfe-septeutrionalis, Ashe. Notes on the Hickories, Chapel Hill, N. C. 

 (4896.) 



•iHicoria laciniosa, (Michaux flls) Sargent. 



