362 CONTEIBUTIONS FEOM THE NATIONAL HERBARIUM. 



New Mexico: White Mountains. Pine woods, in the Transition Zone. 



Mr. M. E. Jones is of the opinion that this is the same species that Doctor Watson 

 described as ^. giganteusirom the Davis Mountains of western Texas. He is probably 

 correct, but the material of A. giganteus which we have seen is not of such a character 

 as to make it possible to decide the question, and the original description is not com- 

 plete. In case Mr. Jones is correct, the name of the species is A. giganteus S. Wats, 

 with A. yaquianus S. Wats, and A. texanus Sheld.' as synonyms. 



8. Astragalus goniatus Nutt.; Torr. & Gray, Fl. N. Amer. 1: 330. 1838. 

 Type locality: "Rocky Mountains, near the sources of the Platte," Colorado. 

 Range: Saskatchewan and Washington to California and New Mexico. 



New Mexico: Ensenada; Las Vegas; Sierra Grande; Chama; Tien-a Amarilla. In 

 meadows and river valleys, in the Upper Sonoran and Transition zones. 



9. Astragalus matthewsii S. Wats. Proc. Amer. Acad. 18: 192. 1883. 



Type locality: Fort Wiugate, New Mexico. Type collected by Matthews. 



Range: Northwestern New Mexico, southwestern Colorado, and probably adjacent 

 Arizona and Utah. 



New Mexico: Fort Wingate; Aztec. Plains and low hills, in the Upper Sonoran 

 Zone. 



This is probably too close to A. thompsonae S. Wats., and field study will be neces- 

 sary to determine the status of the two. 



10. Astragalus bigelovii A. Gray, PI. Wright. 2: 42. 1853. 



Type locality: Organ Mountains, New Mexico. Type collected by Wright (no. 

 1358). 



Range: Southern New Mexico, western Texas, and northern Chihuahua. 



New Mexico: Datil; Magdalena Mountains; mountains west of San Antonio; Lava; 

 Kingston; Burro Mountains; Tres Hermanas; Organ Mountains; Dog Spring; Roswell. 

 Low mountains and foothills, in the Upper Sonoran Zone. 



This is one of the common loco weeds of the southern part of the State, occasionally 

 causing considerable loss to stockmen. 



Astragalus mogollonicus Greene ^ we have not seen, but Doctor Greene assures us 

 that he is well acquainted with A. bigelovii, its nearest relative, and that the two are 

 distinct. It should be found when the region from which it comes ("bleak grassy 

 summits of the MogoUon Mountains") has been more thoroughly explored. Doctor 

 Greene originally published the following comparison: "As compared with its nearest 

 ally, A. bigelovii, the plant is a dwarf, being barely a span high. Its still smaller 

 pods are much more densely woolly, and nearly straight at maturity, in which latter 

 character, however, the species is at variance with the rest of the Mollissimi." 



11. Astragalus vaccarum A. Gray, PL Wright. 2: 43. 1853. 



Type locality: Ojo de Vaca, west of the Copper Mines, New Mexico. Type col- 

 lected by Wright (no. 1002). 

 Range: Known only from the type locality. 



12. Astragalus thompsonae S. Wats. Proc. Amer. Acad. 10: 345. 1875. 

 Astragalus bigelovii thompsonae Jones, Contr. West. Bot. 8: 23. 1898. 

 Type locality: Southern Utah. 



Range: Utah to Arizona and northwestern New Mexico. 



New Mexico: Aztec (Baker 405). Dry lulls, in the Upper Sonoran Zone. 



13. Astragalus cobrensis A. Gray, PI. Wright. 2: 43. 1853. 



Type locality: Santa Rita, New Mexico. Type collected by Bigelow. 

 Range: Southwestern New Mexico. 



New Mexico: Santa Rita; Burro Mountains; Kingston. In the drier mountains. 

 Upper Sonoran and Transition zones. 



1 Minn. Bot. Stud. 9: 65. 1894. - Bull. Torrey Club 8: 97. 1881. 



