VASCULAR PLANTS OF NORTH DAKOTA 59 



1 109. Tessenia oligodonta var. roseata Lunell, var. nov. 

 Rays of a vivid rose color. Leeds, Butte. 



1 1 10. Tessenia procera Lunell, nov. comb. 



Erigeron procerus Lunell, in Am. Midi. Nat. Vol. Ill: 5. (1913). 



Butte. 



mi. Tessenia anodonta Lunell, nov. comb. 



Erigeron anodontus Lime 1 !, in Am. Midi. Nat. Vol. ni : 6. 



(1913)- 



Leeds, Butte. 



1 1 12. Tessenia tarda Lunell, nov. comb. 



Erigeron tardus Lunell, in Am. Midi. Nat. Vol. Ill: 344. (1914). 

 York. 



1 1 13. Tessenia glabella (Nutt.) Lunell, nov. comb. 

 Erigeron glabellas Nutt. Gen. PI. II: 147. (1818). 



"Plains of the Missouri (around Fort Mandan)." Leeds, Butte. 



1 1 14. Tessenia glabella var. subdiscoidea Lunell, var. nov. 

 Rays almost absent. Leeds. 



1 1 15. Tessenia pumila (Nutt.) Lunell, nov. comb. 

 Erigeron pumilus Nutt. Gen. PI. II: 147. (18 18). 

 Towner, Minot; Turtle Lake (O. A. Stevens). 



1 1 16. Tessenia philadelphica (Linn.) Lunell, nov. comb. 

 Erigeron philadelphicus Linn. Sp. PI. 863. (1753). 

 Leeds, Peninsula of Lake Ibsen, Turtle Mountains. 



1 1 17. Tessenia philadelphica var. acaulescens Lunell, var. 

 nov. 



Plant acaulescent up to the inflorescence, which commences 

 2-4 inches from the lower end of the stem. Dry bottom of Lake 

 Ibsen. 



1 1 18. Tessenia subcostata Lunell, nov. comb. 



Erigeron subcostatus Lunell, in Am. Mid Nat. Vol. III., 5. 



(1913)- 



Dickinson (CI. Waldron). 



1 1 19. Tessenia obscura Lunell, nov. comb. 



Erigeron obscurus Lunell, in Am. Mid. Nat., Vol. II: 256. 

 (1912). 



Leeds, Devils Lake. 



1 1 20. Tessenia ramosa (Walt.) Lunell, nov. comb. 

 Erigeron ramosus (Walt.) B. S. P. Prel. Cat. N. Y. 27. (1788) 

 Doronicum ramosum Walt. Fl. Car. 205. (1788). 



Kulm (Brenckle.) 



