178 CAMPAXULALES 



1. Erigeron asper Niitt. 



Nebraska according to Britton's Manual. 



2. Erigeron subtrinervis Rydb. Three-nerved Fleabane. 

 Dry soil in the western part of the state. Hat Creek Basin. 



3. Erigeron caespitosus Nutt 



Tn dry soil in the western part of the state. Belmont; Hat Creek 

 Basin. 



4. Erigeron pumilus Nutt. 



Dry prairies in the western part of the state. Alliance; Box Butte 

 County; Ft. Robinson; Pine Ridge; Sioux County; War Bonnet Canon; 

 Valentine. 



5. Erigeron concinnus (H. & A.) T. & G. • 

 In the western part of the state. Hat Creek Basin. 



6. Erigeron canus A. Gray. 



In dry soil in the western part of the state. Deuel County. 



7. Erigeron philadeiphicus L. 



Common in dry soil in the eastern part of the state. Ashland; Kear- 

 ney; Nebraska City; Peru; Plainview; Minden; St. Paul; Valentine. 



8. Erigeron divergens T. & G. 

 Banner County. 



9. Erigeron bellidiastrum Nutt. 



In moist soil in the western part of the state. Crawford; Dismal 

 River; Kennedy; Scotts Bluff; Thedford. 



10. Erigeron ramosus (Walt.) B. S. P. 



Common in fields over most of the state. Cherry County; Kearney 

 County; Lincoln; Nebraska City; Pine Ridge; Nemaha; Plummer 

 Ford; Red Cloud; Sheridan County. 



10a. . Erigeron ramosus beyrichii (F. & M.) Smith & Pound. 

 Cherry County; Kearney; Lincoln; St. James; Valentine. 



16. Leptilon. 969. 



Tall plants, 7-30 dm. high, rays white. 1. L. canadense. 



Low plants, 1-3 dm. high or less, rays purple. 2. L. divaricatum. 



1. Leptilon canadense (L.) Britton. Horse-weed. 

 A common weed all over the state. Ainsworth; Crete; Dismal River; 

 Lincoln; Long Pine; Nebraska City; Thedford; Wymore. 



2. Leptilon divaricatum (Michx.) Raf. 



A common weed in dry soil. Ainsworth; Bone Creek; Endicott; Grand 

 Island; Lincoln; Minden; Nebraska City; Plainview; Thedford; St. 

 Paul; Wymore. 



Tribe 4. INULEAE. 

 Pappus none. 1. Filago. 



Pappus of capillary bristles. 



Plants dioecious, or polygamo-dioecious, some heads containing 



only staminate flowers. 2. Antennaria. 



Plants not dioecious, flowers all fertile. 3. Gnaphalium. 



1. Filago. 972. 



1. Filago prolifera (Nutt.) Britton. 

 Western Nebraska. 



