JUGLANDACEAE 335 
7. Hicoria alba (L.) Britton. A forest tree, reaching a height of about 30 m. and a 
maximum trunk diameter of nearly 1.5 m. Bark rather close, in flat ridges: foliage 
tomentose : bud-scales imbricated : leaves ample ; leaflets 7-9, the blades oblong, oblong- 
lanceolate, or the upper broadest above the middle, 8-13 cm. long, short-acuminate, acute 
or rounded at the base, sessile: staminate aments in 3’s, 10-15 em. long, peduncled : fruit 
globose or globose-obovoid, 4-6 cm. in diameter, the thick husk readily splitting to the 
base: nuts slightly flattened, acute, angled, thick-shelled, the seed sweet. [Carya tomentosa 
(Lam.) Nutt. ] 
In stony or rich soil, Massachusetts to Ontario and Nebraska, Florida and Texas. 
8. Hicoria lacinidsa (Michx. ) Sarg. A forest tree, reaching a height of 40 m. and a 
maximum trunk diameter of about 1.5 m. Bark separating in narrow plates: foliage 
densely puberulent when young: bud-scales imbricated : leaves ample ; leaflets puberulent 
beneath in age, 7-9 or rarely 5, the blades oblong, oblong-lanceolate, or the upper broadest 
above the middle, acute or acuminate, 10-20 cm. long: staminate aments in 3’s, peduncled, 
arising from the base of the shoots of the year: fruit broadly oblong or oblong-obovoid, 
5-8 em. long, with a thick husk which readily splits its entire length : nut broadly oblong, 
pointed at both ends, slightly flattened, the seed sweet. [Carya sulcata Nutt. ] 
In rich soil, New York to Iowa, Kansas, Pennsylvania, Tennessee and the Indian Territory. KING- 
NUT. BIG SHAG-BARK. 
9. Hicoria ovàta (Mill.) Britton. A forest tree, reaching a height of 40 m. and a 
maximum trunk diameter of 1.5 m. Bark separating in large plates: foliage pubescent 
when young, glabrate in age: bud-scales imbricated : leaves deep green; leaflets 5 or 
rarely 7, the blades oval or oblong-lanceolate, 10-15 em. long, acuminate, sessile: stami- 
nate aments in 3’s, on the shoots of the season, peduncled : fruit subglobose, 3-5 cm. thick, 
with a thick early 4-valved husk: nut slightly flattened, pointed, slightly angled, with a 
thin shell, the seed sweet. [Carya alba Nutt. ] 
In rich soil, Quebec to Minnesota, Kansas, Florida and Texas. SHELL-BARK HICKORY. SHAG-BARK. 
10. Hicoria Carolinae-septentrionàlis Ashe. A forest tree, 20-40 m. tall, with a 
deep gray bark hanging in loose strips, and slender, smooth and glaucous, purplish brown 
twigs. Bud-scales 8-10, the inner much enlarged in unfolding : terminal bud ovoid-lanceo- 
late, truncate : young foliage blackening in drying : leaves numerous, usually crowded at the 
ends of the branchlets ; leaflets 3-5, the blades lanceolate, sometimes narrowly so, 6-15 cm. 
long, glabrous, ciliate, with few resinous globules: staminate aments glabrous: fruit sub- 
globose, 1.5-3 em. in diameter, the husk early separating in 4 valves : nut white or brownish, 
flattened, angled, thin-shelled, cordate or subcordate at the top, the seed sweet. 
In sandy or rocky woods or bottoms, Delaware to Kentucky, Georgia and Alabama. 
11. Hicoria microcárpa (Nutt.) Britton. A forest tree, sometimes 25 m. tall and 
rarely 1.5 m. thick near the base. Bark separating into thin plates: foliage glabrous in 
age: bud-scales imbricated : leaves resembling those of H. ovata; leaflets 5-7, the blades 
oval, oblong or ovate-lanceolate, acuminate at the apex, 6-14 em. long, sometimes rounded 
at the base: staminate aments in 3’s, glabrous or nearly so, peduncled : fruit subglobose, 
2-2.5 em. in diameter, the thin husk tardily splitting: nut slightly flattened, hardly 
angled, acute, thin-shelled, the seed sweet. 
In rieh woods, Massachusetts to Michigan, Missouri and Georgia. 
..12. Hicoria glabra (Mill.) Britton. A forest tree, reaching a height of 60 m., 
with a trunk diameter sometimes over 1.5 m. Bark close, in flat ridges : foliage glabrous 
or nearly so: bud-scales imbricated : leaves 1.5-3 dm. long ; leaflets 3-7 or rarely 9, 7-15 
cm. long, the blades acuminate, often firm and lustrous, commonly oblong or oblong-lanceo- 
late, usually acute at the base : staminate aments in 3's, peduncled, 6-10 cm. long: fruit 
subglobose to obovoid or pyriform, 3.5-5 cm. long, with a thinnish, tardily separating 
husk : nut often brown, angled, acute, thick-shelled, the seed bitter and astringent. 
,. In woods, Maine to Minnesota, Florida and Texas.—A form with larger hirsute leaflets and larger 
fruit is known as H. glabra hirsüta Ashe ; it ranges from Virginia to Georgia. PrG-NUT Hickory. 
l3. Hicoria villósa (Sarg.) Ashe. A small or medium-sized tree, with a deeply 
furrowed dark gray bark and glabrous or nearly glabrous, bright purple-brown twigs. 
Buds various, the lateral mostly short-stalked, all with 6-8 scales, the outer scales with resi- 
nous globules: leaves 1-3 dm. long ; leaflets 5-9, the blades oblong to oblong-oval, or slightly 
broadest above or below the middle, 8-12 cm. long, covered beneath with silvery peltate 
scales and resinous globules, and usually pubescent: petioles and rachis pubescent: stami- 
nate aments 5-10 cm. long, pubescent : fruit obovoid or globose-obovoid, about 2.5 em. long, 
the husk partly splitting : nut brown, thick-shelled, angled : seed small. 
In open woods, Missouri and Arkansas. 
