368 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



44. Astragalus elatiocarpus Sheld. Minn. Bot. Stud. 9: 20. 1894. 



Astragalus lotifiorus brachypus A. Gray, Proc. Amer. Acad. 6: 209. 1866, not A. 



brachypus Sehrenk. 1841. 

 Astragalus ammolotus Greene, Erythea 3: 76. 1895. 

 Phaca elaliocarpa Rydb. Colo. Agr. Exp. Sta. Bull. 100: 211. 1906. 

 Type locality: Silver Lake, Ottertail County, Minnesota. 



Range: Minnesota and Saskatchewan to Missouri and Texas, in the Rocky Moun- 

 tains south to New Mexico. 

 New Mexico: Near San Juan (Heller 3768). Plains, in the Upper Sonoran Zone. 



45. Astragalus sonorae A. Gray, PI. Wright. 2: 44. 1853. 



Type locality: Mountain valleys, between the San Pedro and the Sonoita, Sonora. 



Range: Southern New Mexico and Arizona and northern Mexico. 



New Mexico: Mangas Springs; west of Patterson; near Grant; Organ Mountains. 

 Plains and low lulls, in the Upper Sonoran Zone. 



This species is very near A. humistratus A. Gray, possibly too near to be kept dis- 

 tinct. As originally described, the pods are not compressed and neither suture is 

 introverted, but the plants not infrequently have pods almost identical with those 

 of A. humistratus, while the other characters (pubescence, stipules, etc.) are those of 

 A. sonorae. 



46. Astragalus greenei A. Gray, Proc. Amer. Acad. 16: 105. 1880. 



Astragalus fcndleri A. Gray, PI. Wright. 2: 44. 1853, not Phaca fendleri A. Gray, 

 1849. 



Astragalus fallax S. Wats. Proc. Amer. Acad. 20: 362. 1885, not Fisher, 1853. 



Astragalus famelicus Sheld. Minn. Bot. Stud. 9: 23. 1894. 



Astragalus gracilentus greenei Jones, Contr. West. Bot. 8: 14. 1898. 



Astragalus gracilentus fallax Jones, loc. cit. 



Type locality: Foothills of the Mogollon Mountains, New Mexico. Type col- 

 lected by E. L. Greene, April 20, 1880. 



Range: Mountains of western New Mexico, and in Arizona. 



New Mexico: Santa Rita; Mimbres; Mogollon Mountains. Transition Zone. 



The synonymy of this species is considerably involved. Doctor Gray named 

 Phaca fendleri from material collected at Santa Fe by Fendler. The species, he 

 thought, might be "too near P. flexuosa. ,> Later he gave additional notes on the 

 species, based upon Wright's specimens from near the Copper Mines, and transferred 

 it to the genus Astragalus. Unfortunately the Wright plants were not the same 

 species as those of Fendler. Years afterwards Doctor Gray received material from 

 the region of Santa Rita through Doctor Greene, which he named Astragalus greenei, 

 without recognizing it as the species Wright had collected. In 1885 Doctor Watson 

 discovered the mistake made originally by Doctor Gray and named the Wright plant 

 Astragalus fallax, apparently without discovering its identity with A. greenei. In 

 1894 Mr. E. P. Sheldon found an older Astragalus fallax and renamed the species 

 A. famelicus. Mr. Jones has recognized the similarity of A. greenei and A. fallax 

 and reduced them to subspecies of A. gracilentus A. Gray, a plant named from Santa 

 Fe which is, in all probability, A. jlexuosus, although we have no means of being 

 absolutely sure at this time. At any rate that plant is described as having sessile, 

 oblong pods 5 mm. in diameter, while the plants from the Santa Rita region have 

 short-stipitate pods about 10 mm. in diameter. Assuming that they are not the 

 same as the Santa Fe plant, the Santa Rita plants will take the name Astragalus 

 greenei. 



47. Astragalus gertrudis Greene, Leaflets 2: 43. 1910. 



Type locality: Taos County, New Mexico. Type collected by Heller (no. 3598). 

 Range: Hills west and northwest of Santa Fe. 



New Mexico: Between Barranca and Embudo; hills west of Santa Fe. Upper 

 Sonoran Zone. 



