18 
Spring Flora of Oklahoma 
glabrous. Leaflets 7-9, sessile, long-acuminate, lanceolate or oblong- 
lanceolate, the lateral ones falcate. Staminate aments slightly pub¬ 
escent, peduncled in 3’s at the bases of the shoots of the season or 
sometimes on twigs of the previous year. Lobes of the staminate 
calyx labout equal, the bract narrower. Fruit sub-globose, narrowly 
6- ridged. Husk thin, tardily 4-valved. Nut little compressed, not 
angled, thin-shelled. Seed very bitter. 
In moist woods and swamps. Harrah, Oklahoma, and eastern 
part of state. May-June. 
3. Hicoria aquatica (Michx.) Britton. Water or Swamp Hick¬ 
ory. A swamp tree, attaining a maximum height of about 100°, 
the bark close, the young foliage pubescent, becoming nearly glabrous 
when mature. Leaflets 9-13, lanceolate, or the terminal one oblong, 
long-acuminate at the apex, narrowed at the base, the lateral strongly 
falcate. Staminate aments and calyx las in the preceding species. 
Fruit oblong, ridged, pointed. Husk thin, tardily splitting. Nut 
oblong, thin-shelled, angular, seed bitter. 
Wet woods and swamps. Eastern part of the state. March-April. 
4. Hicoria ovata (Mill.) Britton. Siiell-bark Hickory. Tree 
becoming 120° tall, the bark separating in large plates. Leaflets 5, 
or rarely 7. The blades of the lateral ones oval to oblong-lanceolate. 
Staminate aments slender, 4'-6' long. Fruits sub-globose, l'-2' thick, 
the husk thick. Nut slightly angled, thin-shelled, the seed sweet. 
In rich soil. Eastern part of the state. May. 
5. Hicoria alba (L.) Britton. White-heart Hickory. Mock- 
ernut. Tree becoming 100° tall, the hark with flat ridges. Leaflets 
7- 9, the blades of the lateral ones oblong or oblong-lanceolate. Stam¬ 
inate aments stout, 4'-6' long. Fruits globose or globose-obovoid, 
iy 2 '-3y 2 ' long. Husk thick, freely splitting to the base. Nut grayish 
white, angled, pointed at the summit, little compressed, thick-shelled. 
Seed sweet. 
In rich 'soil. Eastern part of the state. May-June. 
6. Hicoria glabra (Mill.) Britton. Pig-nut Hickory. Tree 
becoming 120° tall, the bark close, rough. Leaflets mostly 3-7, rarely 
9, the blades of the lateral ones oblong or oblong-lanceolate, acumin¬ 
ate, green beneath, glabrous. Staminate aments glabrous, peduncled 
in 3’s, 2%'-4' long. Fruit sub-globose, obovoid or obovoid-oblong, 
lyj'-S' long. Husk thin. Nut brown, angled, pointed, very thick- 
shelled. Seed astringent and bitter, not edible. 
In dry or moist woods. Payne county. May-June. 
FAMILY 10. SALICACEiE. Willow Family. 
Dioecious trees or shrubs, with flowers in catkins, desti¬ 
tute of floral envelopes. Fruit a 1-celled pod, with nu- 
