22 Order LILIALES 
14. Trillium. 274. 
1. Trillium nivale Riddell. Wake-robin. 
Rare along the Missouri river. Bellevue; Weeping Water. 
15, Smilax. 275: 
Stems herbaceous, without prickles. 1. S. herbacea. 
Stems woody, perennial, with prickles. 
Leaves glaucous. ' 2. 5. glauea, 
Leaves not glaucous. 3. S. hispida. 
1. Smilax herbacea L. Carrion-flower. 
Common in wooded bluffs. Bellevue; Fremont; Glen; Grand Island; 
Halsey; Hooker county; Lincoln; Milford; Nebraska City; St. James; 
Thomas county; Valentine. 
2. Smilax glauca Walt. Saw Brier. 
Republican river near Franklin. 
3. Smilax hispida Muhl. Green-brier. 
Common in woods all over the state. Crete; Grand Island; Lincoln; 
Omaha; St. James; Tecumseh; Weeping Water. 
2. PONTEDERIACEA. 
1. Heteranthera. 243. 
Leaves rounded, petioled; flower white or blue. 1. H. limosa. 
Leaves linear, sessile; flowers yellow. 2. H. dubia. 
1. Heteranthera limosa (Sw.) Willd. Mud-plantain. 
Common in mud or shallow water. Fairmont; Lincoln; Minden; 
Plainview; Sheridan county. 
2. Heteranthera dubia (Jacq.) MacM. Water Star-grass. 
Submerged aquatic of still water. Elm Creek; Glen Rock; Kearney; 
Neligh. 
3. COMMELINACEZ. 
Spiderwort Family. 
Petals unequal; fertile stamens 3 or 2. 1. Commelina. 
Petals equal; fertile stamens 6 or 5. 2. Tradescantia. 
1. Commelina. 239. 
Sheaths glabrous or nearly so. 1. C. crispa. 
Sheaths hirsute. 2. C. virginica. 
1. Commelina crispa Wooton. 
Nebraska, according to Britton’s Manual. 
2. Commelina virginica L. Day-flower. 
In the sand-hill regions. Flowers open in early morning and wither 
in the heat of the day. Knox county; Long Pine; Sheridan; Thed- 
ford. 
2. Tradescantia. 240. 
Calyx and pedicels hairy. 
Bracts broad and saccate at the base; plants mostly less than 3: 
dm. high 1. T. bracteata. 
