Family FAGACEAs# 163 
vue; Long Pine; Nebraska City; Ponca; South Bend; Weeping 
Water. 
3. Corylus. 327. 
1. Corylus americana Walt. Hazel-nut. 
Along streams in the eastern part of the state. Fremont; Nebraska 
City; Omaha; Peru; Weeping Water; Wymore. 
4. Betula. 327. 
Bark chalky white, leaves dentate or serrulate. 1. B. papyrifera. 
Bark greenish-brown, leaves coarsely serrate. 2. B. fontinalis. 
1. Betula papyrifera Marsh. Paper or Canoe Birch. 
In the northwestern part of the state, not common. Brown county; 
Ft. Niobrara; Merriman; Valentine. 
2. Betula fontinalis Sarg. Black Birch. 
Betula occidentalis Hook. 
In the northwestern part of the state. Harrison; Hat Creek basin. 
6. FAGACEA. 
Oak or Beech Family. 
1. Quercus. 332. 
Leaves entire or toothed, not lobed. 
Leaves entire. 5. Q. imbricaria. 
Leaves toothed. 1. Q. muhlenbergii. 
Leaves lobed. 
Lobes not bristle-tipped; acorns annual, maturing in one season. 
Acorns sessile or short pedicelled. 
Terminal lobes of the leaf not larger than the others; acorn 
much exceeding the shallow cup. 2. Q. alba. 
Terminal lobes of the leaf much larger than the others; acorns 
not much exceeding the deep cup. 3. Q. macrocarpa. 
Acorns long pedicelled. 4. Q. bicolor. 
Lobes bristle-tipped; acorns biennial, requiring two seasons to ma- 
ture. 
Leaves pinnately lobed. 
Cup of the acorn shallow, saucer-shaped. 
Leaves dull; acorns about 25 mm. long. 6. Q. rubra. 
Leaves shining; acorns usually less than 15 mm. long. 
7. Q. palustris. 
Cup of acorns deeper, hemispheric. 
Leaves glabrous, very deeply lobed. 8. Q. coccinea. 
Leaves pubescent, at least when young, less deeply lobed. 
9. Q. velutina. 
Leaves obovate, 3—5-lobed towards the apex. 10. Q. marylandica. 
1. Quercus muhlenbergii Engelm. Yellow or Chestnut Oak. 
Along streams in the southeastern part of the state. Nebraska City; 
Nehawka; Nemaha; Peru; Richardson county. 
2. Quercus alba. L. White Oak. 
Rare in the southeastern part of the state. Richardson county; 
Weeping Water. 
3. Quercus macrocarpa Michx. Bur Oak. 
Very common, mostly along streams, in the eastern half of the 
