746 CONTEIBUTIONS FROM THE NATIONAL HEEBAEIUM. 



New Mexico: Santa Fe and Las Vegas mountains; Jemez Mountains; G O S Ranch; 

 Wliite and Sacramento mountains. Transition Zone. 



Our specimens differ from the type in ha\'ing larger and narrower leaf segments. 

 The material from Arizona is insufficient to determine whether the New Mexican 

 plant is specifically distinct. 



20. Senecio triangularis Hook. Fl. Bor. Amer. 1: 332. pi. 115. 1833. 

 Type locality: "Moist praiiies among the Rocky Mountains." 

 Range: British America to California and northern New Mexico. 



New Mexico: Chama; Santa Fe and Las Vegaa mountains. Along streams and 

 in bogs, in the Canadian and Hudsonian zones. 



21. Senecio carthamoides Greene, Pittonia 4: 122. 1900. 



Type locality: Little Ouray Mountain, at Marshall Pass, Colorado. 



Range: Mountains of Colorado and northern New Mexico. 



New Mexico: Upper Pecos River {Maltby & Coghill 198). Arctic-Alpine Zone. 



22. Senecio crassulus A. Gray, Proc. Amer. Acad. 19: 54. 1883. 

 Type locality: "Colorado Rocky Mountains." 



Range: Idaho and Montana to Utah and northeiTi New Mexico. 

 New Mexico: Truchas Peak {Standley 4794). High mountains, in the Hudsonian 

 and Arctic-Alpine zones. 



23. Senecio lapathifolius Greene; Rydb. Colo. Agr. Exp. Sta. Bull. 100: 394. 

 1906. 



Type locality: Mountains of Colorado. 



Range: Southern Colorado and northeiTi New Mexico. 



New Mexico: Chama (Standley 6733). Wet meadows, in the Transition Zone. 



24. Senecio thurberi A. Gray, Proc. Acad. Phila. 1863: 68. 1804. 

 Type locality: Santa Rita, New Mexico. 



Range: Mountains of New Mexico and Aiizona. 

 New Mexico: Santa Rita. 



25. Senecio microdontus (A. Gray) Heller, Bull. Torrey Club 24: 497. 1897. 

 Senecio toluccanus microdontus A. Gray, Syn. Fl. 1^: 388. 1884. 



Senecio wootonii Greene, Bull. Torrey Club 25: 122. 1898. 

 Senecio anacletus Greene, Pittonia 4: 307. 1901. 



Type locality: Pinos Altos Mountains, New Mexico. Type collected by Greene. 

 Range: Colorado to Arizona and New Mexico. 



New Mexico: Tierra Amarilla; Santa Fe and Las Vegas mountains; Wliite and Sacra- 

 mento mountains. Mountains, in the Transition Zone. 

 The type of S. wootonii was collected in the White Mountains (Wooton 491). 



26. Senecio atratus Greene; Rydb. Colo. Agr. Exp. Sta. Bull. 100: 395. 1906. 

 Type locality: Moimtaius of Colorado. 



Range: Mountains of Colorado and northern New Mexico. 

 New Mexico: Baldy (Wooton). 



27. Senecio fendleri A. Gray, Mem. Amer. Acad. n. ser. 4: 108. 1849. 



Type locality: ' ' Foot of high mountains, along the creek 12 miles above Santa Fe," 

 New Mexico. Type collected by Fendler (no. 478). 



Range: Colorado and Utah to New Mexico. 



New Mexico: Santa Fe and Las Vegas mountains; Sandia Moimtains; Jemez 

 Mountains; Rio Pueblo; Baldy. Transition Zone. 



28. Senecio canovirens Rydb. Bull. Torrey Club 27: 187. 1900. 



Type locality: White Mountains, New Mexico. Type collected by Wooton 

 (no. 244). 

 Range: Mountains of Colorado and New Mexico. 



