RYDBERG: Rocky MOUNTAIN FLORA 53 
Homalobus debilis (Nutt.) Rydb. 
Phaca debilis Nutt.; T. & G. Fl. N. Am. 1: 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 griseopubescens Sheld. Minn. Bot. Stud. 1: 24. 1894. 
Homalobus episcopus (S. Wats.) Rydb. 
Astragalus episcopus S. Wats. Proc. Am. Acad. 10: 346. 1875. 
Homalobus collinus (Dougl.) Rydb. 
Phaca collina Dougl.; Hook. Fl. Bor.-Am. 1: 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 O. 
_Lambertiit Pursh. 1814. 
Oxytropis Lambertii Bigelovii A. Gray, Proc. Am. Acad. 20: 7. 
1885. 
Aragallus plattensis (Nutt.) Rydb. 
Oxytropis plattensis Nutt.; T. & G. Fl. N. Am. 1: 340. 1838. 
Lathyrus graminifolius White and L. Torreyi A. Gray have 
been collected in southern Utah; L. Nuttallii S. Wats. 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. Surv. 189. 1859. 
Euphorbia Aliceae A. Nels. Bot. Gaz. 42: 50. 1906 
This has been collected as far north as Wyoming. 
