i Order ARALES 
2. Juncus balticus Willd. 
On sand-bars and sandy margins of lakes and streams. Alliance; 
Broken Bow; North Platte; Oshkosh; Valentine; Wood River. 
3. Juncus bufonius L. Toad Rush. 
Common in wet places in the sand-hills. Banner county; Custer 
county; North Platte; Pine Ridge; Sheridan county; Valentine. 
4, Juncus tenuis Willd. Slender Rush. 
Common in wet meadows throughout the state. Banner county; 
Broken Bow; Crete; Hat Creek basin; Hooker county; Kennedy; 
Lincoln; Weeping Water. 
5. Juncus interior Wiegand. 
This and the following are sometimes included in Juncus tenuis. 
Boelus; Red Cloud; Riverton. 
6. Juncus dudleyi Wiegand. 
Common in meadows over most of the state. Callaway; Gordon; 
Long Pine; Loup City; Scotia; Thedford; Valentine; Wood River; 
Wymore. . 
7. Juncus setosus (Coville) Small. 
Juncus marginatus var. setosus Coville. 
Reported only from Long Pine. 
8. Juncus marginatus Rostk. 
In moist places mostly in the sand-hills. Brewster; Dismal River; 
Ewing; Long Pine; Minden; Valentine. 
9. Juncus longistylis Torr. 
In meadows in the western part of the state. Ewing; Sheridan 
county; Valentine. 
10. Juncus nodosus L. 
Common, often forming a sod in wet meadows. Anselmo; Boelus; 
Long Pine; Thedford; Valentine. 
11. Juncus torreyi Coville. 
Common in wet soil all over the state. Ainsworth: Anselmo; Chad- 
ron; Haigler; Lincoln; Long Pine; Louisville; Minden; Mullen; Pine 
Ridge. 
12. Juncus richardsonianus Schult. 
Rare in the sand-hill regions. Long Pine. 
3. NAIADACEZ. 
1. Naias. 50. 
Seeds shining, with 30-50 rows of faint reticulations. 1. N. flexilis. 
Seeds dull, with 16-20 rows of strongly marked reticulations. 
2. N. guadalupensis. 
1. Naias flexilis (Willd.) Rost. & Schmidt. 
Found mostly in the clear streams and ponds of the sand-hill regions. 
Cherry county; Greenwood; Wood Lake. 
2. Naias guadalupensis (Spreng.) Morong. 
In a lake near Whitman. 
ARALES. 
Plants with stem and leaves. 
Flowers in a spike or spadix. 
