70 THE AMERICAN MIDLAND NATURALIST 



1208. Senecio palustris (Linn.) Hook. Fl. Bor. Am. I: 334. 



(1833); 



Cineraria palustris Linn. Sp. PI. ed. 2: 243. (1763). 

 Leeds, Peninsula of Lake Ibsen, Rolette. 



1209. Senecio McDougalii Heller, Bull. Torr. Bot. Club 26: 

 592. (1899). 



Pleasant Lake, Dunsieth, Turtle Mountains. 



ARCION {apxtioi') Diosc. 4. 107, Plin. 25. 9. Pcrsonata 

 21.27. A7lttp<i'>7 Theophr. n. pi. 7. 14. La ppa Tourn. 256. (1700). 

 Arctium Lappa Linn. 243. (1737). Lappa was among the Romans 

 the general name for plants some part of which was adherent. 



12 10. Arcion minus (Fuchsius) Bubani ex Schk. Handb. 3: 

 4317. (1803); Tourn. 450. (1700). 



Lappa minor DC. Fl. Fran. 4: 77. (1803). 

 Leeds, Devils Lake, Pleasant Lake; Kulm (Brenckle). 

 CIRSIUM (KipGtov) Dioscorides 4: 119; Tourn. 447. (1700). 

 Carduus Linn. Gen. 244. (1737). 



121 1. Cirsium lanceolatum (Linn.) Scop. Fl. Cam. ed. 2, 

 2: 130. (1772). 



Carduus lanceolatus Linn. Sp. PI. 82. (1753). 

 Kulm (Brenckle). 



12 1 2. Cirsium nebraskense (Britton) Lunell in Am. Mid. 

 Nat. Vol. II: 301 (1912). 



Carduus nebraskensis Britton, 111. Fl. Ill: 487. (1898). 

 To include var. discissum Lunell, in A. Midi. Nat. 1. c. 

 [Not Carduus Flodmannii Rydb. Fl. of Montana. 451 (1900). 

 which has a different pappus]. 



Leeds, Butte, Pleasant Lake, Devils Lake, Turtle Mountains. 



12 13. Cirsium nebraskense var. formidolosum Lunell, in 

 Am. Mid. Nat. Vol. Ill: 143. (1913). 



Minot. 



12 14. Cirsium megacephalum (A. Gray) Cockerell, Univ. 

 Mo. Stud. vSei. 2 2 : 254. (191 1). 



Cnicus undulatus megacephalus A. Gray, Proc. Am. Acad. 10: 

 24. (1874). 



Carduus megacephalus Smyth, Trans. Kans. Acad. 16: 160. 

 (18999. 



Pleasant Lake, Steele. 



1215. Cirsium muticum Michx. Fl. Bor. Am. II: 89. (1803). 

 Turtle Mountains. 



