POACEAE: ORYZEAE 47 
1. Aristida dichotoma Michx. 
Nebraska, according to Britton’s Manual. 
2. Aristida basiramea Engelm. 
Common in the sand-hill region, Atkinson; Broken Bow; Exeter; 
Long Pine; Thedford; Valentine. 
3. Aristida fasciculata Torr. 
In dry soil mostly in the western part of the state. Lavaca; Lincoln; 
Long Pine; Thedford. : 
4. Aristida fendleriana Steud. 
Crawford; Lavaca; Valentine. 
5. Aristida longiseta Steud. 
Callaway; Long Pine; Wood Lake. 
6. Aristida oligantha Michx. 
Common over most of the state. Ainsworth; Endicott; Ewing; Frank- 
lin; Grand Rapids; Lincoln; Long Pine; Minden. 
7. Aristida gracilis Ell. 
In dry soil in the western part of the state. Atkinson; Arabia; Bas- 
sett; Valentine. 
8. Aristida tuberculosa Nutt. 
Minden. 
Tribe 8 Oryzeae, 
Spikelets alike; flowers all perfect; scales awnless. 
1. Homalocenchrus. 
Spikelets not alike; flowers monoecious; scales of the pistillate spike 
lets long awned. 2. Zizania. 
1. Homalocenchrus. (Leersia.) 91, 
Spikelets 4-5 mm. long, 1.5 mm. wide. 1. H. oryzoides. 
Spikelets 2.5-3 mm. long, 1 mm. wide. 2. H. virginicus. 
1. Homalocenchrus oryzoides (L.) Poll. Rice cut-grass. 
In marshy places and along streams throughout the state. Bellevue; 
Coon Creek; Grand Island; Halsey; Lincoln; Lodge Pole Creek; 
North Platte; Royal; Talmage; Valentine. 
2. Homalocenchrus virginicus (Willd.) Britton. 
In similar places as the last, not reaching the western part of the 
state. Bellevue; Cass County; Culbertson; Lincoln; Meadville; Weep- 
ing Water; Whitman. 
1. Zizania. 91. 
1. Zizania aquatica L. Wild rice. 
In marshes and along streams over most of the state. Atkinson; 
Bone Creek; Furnas County; Lincoln; Newark; Simeon; Stanton; 
Valentine; Whitman, 
Tribe 9. Andropogoniae. 
Inflorescence composed of many-flowered spike-like racemes, 
1, Andropogon. 
Inflorescence composed of few-flowered racemes, arranged in open 
panicles. 2. Sorghastrum. 
‘4. Andropogon, 68. 
Racemes solitary. 1. A. scoparius. 
Racemes 2 or more together. 
