WOOTON AND STANDLEY PLOEA OF NEW MEXICO. 679 



flower earlier in the season, continuing, however, until late fall. Its earlier flowering 

 probably results from the warmer climate of the region in which it grows. 



17. Erigeron divergens Torr. & Gray, Fl. N. Amer. 2: 175. 1841. 

 Erigeron ckustus Greene, Leaflets 1: 211. 1906. 



Type locality: "In the Rocky Mountains and the plains of Oregon." 

 Range: Washington and Montana to California and New Mexico. 

 New Mexico: Common at higher altitudes except along the eastern side of the 

 State. Plains and hills, in the Upper Sonoran and Transition zones. 

 The type of E. deustus was collected on the West Fork of the Gila by Metcalfe. 



18. Erigeron pinnatisectus (A. Gray) A. Nels. Bull. Torrey Club 26: 246. 1899. 

 Erigeron compositus pinnatisectus A. Gray, Proc. Amer. Acad. 16: 90. 1880. 

 Type locality: 'High mountains of Colorado." 



Range: Wyoming to northern New Mexico. 



New Mexico: Truchas Peak (Standley 4820). Mountain meadows, in the Arctic- 

 Alpine Zone. 



19. Erigeron neomexicanus A. Gray, Proc. Amer. Acad. 19: 2. 1883. 



Type locality: Mountains at the Copper Mines, New Mexico. Type collected by 

 Wright (no. 1170). 



Range: Mountains of New Mexico and Arizona. 



New Mexico: Mangas Springs; Hillsboro Peak; Middle Fork of the Gila; Bill- 

 iards Peak; Santa Rita; San Luis Mountains. Upper Sonoran and Transition zones. 



20. Erigeron melanocephalus A. Nels. Bull. Torrey Club 26: 246. 1899. 

 Type locality: La Plata Mines, Medicine Bow Mountains, Wyoming. 

 Range: Wyoming to northern New Mexico. 



New Mexico: Truchas Peak; Pecos Baldy. High mountain meadows, in the 

 Arctic-Alpine Zone. 



21. Erigeron uniflorus L. Sp. PL 864. 1753. 

 Erigeron simplex Greene, Fl. Franc. 387. 1897. 



Type locality: "Habitat in Alpibus Lapponiae, Helvetiae." 

 Range: Arctic regions and on alpine peaks, Montana to California and northern 

 New Mexico; also in the Old World. 



New Mexico: Taos Mountains (Bailey). High mountain meadows, in the Arctic- 

 Alpine Zone. 



22. Erigeron leucotrichus Rydb. Bull. Torrey Club 28: 23. 1901. 

 Type locality: I '• i u- Born Mountains, Wyoming. 



Range: Wyoming to northern New Mexico. 



Xlw Mexico: Truchas Peak; Baldy. High mountain meadows, in the Arctic- 

 Alpine Zone. 



23. Erigeron leiomerus A. Gray, Syn. Fl. I 2 : 211. 1884. 

 Erigeron spathulifolius Rydb. Hull. Torrey Club 26: 545. 1899. 



Type locality: "Rocky Mountains of Colorado, Utah, and Nevada, in the alpine 

 region." 



ge: Wyoming to Utah and New Mexico. 

 Ni-'.u Mexico: I. as Vegas Range. High mountain meadow B, in the Budeonianand 



An i ic- \ljiine zones. 



24. Erigeron grayi Woot. & Standi, noin. nov. 



Erigeron stenophylhu A. Gray, U. S. Rep. Expl. Miss. Pacif. 4: 98. L856, nol Nutt. 

 Is 17. 



Tyt \iii-,. 'Mi hillsides and steep I tanks of the PecOB, New Mexico. Type 



collected by Bigelow. 

 Range: Known only from the type locality, in the Upper Sonoran Zone. 



