ONAGRACEAE 147 



1. Anogra albicaulis (Pursh.) Britton. 



In the western part of the state, mostly in the foot-hills. Curtis; 

 Ft. Robinson; Gerard. 



2. Anogra pallida (Lindl.) Britton. 



Common in the sand-hill regions. Belmont; Callaway; Chelsea; 

 Deuel County; Haigler; Hooker County; Pine Ridge; Valentine. 



3. Anogra nuttallii (Sweet.) A. Nels. 



Western Nebraska according to Nelson in Bot. Gaz. 34:368. 1932. 



4. Anogra cinerea Rydb. 



Western Nebraska according to Rydberg's Flora of Colorado. 



5. Anogra latifolia Rydb. 



On sandy soil in the western part of the state. Deuel County. 



6. Anogra coronopifolia (T. & G.) Britton. 



On high prairies in the western part of the state. Alliance; Belmont; 

 Box Butte County; Deuel County; Pine Ridge. 



8. Hartmannia. 660. 



1. Hartmannia speciosa (Nutt.) Small. 

 Red Cloud. 



9. Pachylophus. 660. 



1. Pachylophus caespitosa (Nutt.) Raimann. 



In dry soil in the western part of the state. Alliance; Hat Creek 



Basin; Ft. Robinson. 



10. Lavauxla. 661. 



Leaves strigose-canescent; flowers over 5 cm. broad, capsule obtuse. 



1. L. brachycarpa. 

 Leaves green; flowers less than 5 cm. broad, capsule beaked. 



2. L. flava. 



1. Lavauxia brachycarpa (Gray) Britton. 



Western Nebraska according to Nelson's Flora of the Rocky Moun- 

 tains. 



2. Lavauxia flava A. Nels. 

 Western Nebraska. 



11. Gaurella. 661. 



1. Gaurella canescens (Torr.) A. Nels. 



Gaurella guttulata (Geyer.) Small. 

 On dry prairies in the western part of the state. Banner County; 

 Cheyenne County; Deuel County. 



12. Megapterium. 661. 



Petals 3-4 cm. long; capsules 2-3 cm. long, less than 2 cm. wide. 



1. M. fremontil. 

 Petals 5-7 cm. long; capsules 5 cm. long, suborbicular. 



2. M. missouriense. 



1. Megapterium fremontil (S. Wats.) Britton. 



Dry bluffs in the Republican valley. Franklin; Red Cloud. 



