Rydberg : Rocky Mountain flora 53 



Homalobus debilis (Nutt.) Rydb. 



Phaca debilis Nutt.; T. & G. Fl. N. Am. i: 345. 1838. 

 Astragalus debilis A. Gray, Proc. Acad. Sci. Phila. 1863: 60. 1864. 



Homalobus strigosus (Coult. & Fish.) Rydb. 



Astragalus strigosus Coult. & Fish. Bot. Gaz. 18: 299. 1893. 

 Astragalus griseopnbescens Sheld. Minn. Bot. Stud, i: 24. 1894. 



Homalobus episcopus (S. Wats.) Rydb. 

 Astragalus episcopus S. Wats. Proc. Am. Acad. 10: 346. 1875. 



Homalobus coUinus (Dougl.) Rydb. 



Phaca collina Dougl.; Hook. Fl. Bor.-Am. i: 141. 1831. 

 Astragalus collina Dougl.; G. Don, Gen. Syst. 2: 256. 1832. 



Aragallus Bigelovii (A. Gray) Rydb. 



Oxytropis Lambertii ;_Torr. Pac. R. Rep. 4: 80. 1857. Not 0. 



Lambertii Pursh. 18 14. 

 Oxytropis Lambertii Bigelovii A. Gray, Proc. Am. Acad. 20: 7. 



1885. 



Aragallus plattensis (Nutt.) Rydb. 

 Oxytropis plattensis Nutt.; T. & G. Fl. N. Am. i: 340. 1838. 



Lathyriis graminifolius W^hite and L. Torreyi \. Gray ha\e 

 been collected in southern Utah; L. Nuttallii S. W^ats. and L. 

 obovatus White in Idaho. 



EUPHORBIACEAE 



Chamaesyce Parryi (Engelm.) Rydb. 



Euphorbia Parryi Engelm. Am. Nat. 9: 350. 1875. 

 This has been collected in southern Utah. 



Chamaesyce exstipulata (Engelm.) Rydb. 



Euphorbia exstipulata Engelm. Bot. Mex. Bound. Sur\-. 189. 1859. 

 Euphorbia Aliceae A. Nels. Bot. Gaz. 42: 50. 1906. 

 This has been collected as far north as Wyoming. 



