198 LEGUMINOS^. [Astragalus. 



A. Canadensis, var. Mortoni. AVatson, King's Eep. 5. 08. Porter, Hayd. Rep. 

 1871, 481. Coulter, same, 1872, 764. 



A. multiflorus. Gray, Proc. Am. Acad. 6. 226; Bot. Calif. 1. 153. "Watson, 

 Iving's Rep. 5. 75. & 444 ; PI. Wheel. 7. Porter, Fl. Col. 29. Torrey, Bot. WUkes, 

 278. Rothr. PI. Wheeler, 36. 



A. tenellus. Pursh, 473. Poir. Suppl. 5. 5G4. 



Ervum midtijiorum. Pursh, 739. Poir. Suppl. 5. 671. Bradbury, Cat. 337. 

 Spreng. Syst. 3. 270. 



Orobus dispar. Nutt. Genera, 2. 95. James, Cat. 1S6; Long's Exped. 2. 339. 

 Seringe in DC. Prodr. 2. 380. Torrey, Ann. Lye. N. Y. 2. 180. Spreng. Syst. 

 3. 261. Don, Mill. 2. 341. Dietr. 4. 1122. 



Phaca nigrescens. Hook. Fl. Bor.-Am. 1. 143. Don, ^lill. 2. 470. 



Homalobus multiflorus. Torr. & Gray, Fl. 1. 351. Eat. & Wr. 272. Walp. Rep. 

 1. 711. Torrey, Nicol. Rep. 149. Dietr. 4. 1099. Hook, in Lond. Journ. Bot. 6. 214. 

 Engelm. PI. Upp. Miss. 189. 



Homalobus dispar. Nutt. ; Torr. & Gray, Fl. 1. 350. Eat. & Wr. 271. Walp. 

 Eep. 1. 711. Dietr. 4. 1099. 



A. nigrescens. Gray, Am. Journ. Sci. 2. 33. 410; Proc. Acad. Philad. 1863, 60. 

 PI. Bourgeau, 255. 



A. iiothoxys. Gray, Proc. Am. Acad. 0. 2-32. Watson, King's Rep. 5. 446. 



A. nudus. Watson, King's Rep. 5. 74 &443. Gray, Bot. Calif. 1. 153. 



A. Nuttallianus. DC. Prodr. 2. 289. Don, Mill. 2. 259. Torr. & Gray, Fl. 

 1. 334. Walp. Rep. 1. 702. Engelm. & Gray, PI. Lindh. 7. Dietr. 4. 1053. Schecle, 

 Eoem. Texas, 430. Torrey, Marcy's Rep. 284 ; Hex. Bound. 55. Gray, Ives's Rep. 

 10 ; Proc. Am. Acad. 0. 199; Hall's PI. Texas, 7 ; Bot. Calif. 1. 146. Watson, King's 

 Rep. 5. 68 & 436. 



A. micranthus. Nutt. in. Journ. Acad. Philad. 3. 122 (Litt.-Ber. zu Linna;a, 1829, 

 40), not Desv. Eat. & Wr. 149. 

 Var. trichocarpus. Torr. & Gray, Fl. 1. 334; Pac. R. Rep. 2. 163. Engelm. & 

 Gray, PI. Lindh. 7. Gray, PI. Fendl. 36; Proc. Am. Acad. 6. 199; Hall's PL 

 Texas, 7. Watson, King's Rep. 5. 68. 



A. tricJwcarpiis. Young, Fl. Texas, 228. 

 Var. canescens. Torr. & Gray, Pac. R. Rep. 2. 163. Parry, Am. Naturalist, 

 9. 270. 



.4. NutfaJlianus, vars. Gray, PI. AVright. 1. 52 & 2. 43. 



A. obcordatus. Elliott, 2. 227. DC. Prodr. 2. 306. Don, Mill. 2. 272. Torr. & 

 Gray, Fl. 1. 332. Eat. & Wr. 148. Dietr. 4. 1099. Gray, PL Fendl. 35 ; PL Wright. 

 1. 53 ; Proc. Am. Acad. 6. 208. Chapman, 97. Wood, Bot. & Fl. 94. Watson, 

 King's Rep. 5. 4-39. 



A. ElUottii. Dietr. 4. 1080. 

 A. obscurus. Watson, King's Rep. 5. 69 & 437. Gray, Bot. Calif. 1. 155. 

 A. oocarpus. Gray, Proc. Am. Acad. 6. 213 ; Bot. Calif. 1. 149. Watson, King's 

 Eep. 5. 440. 



A. Crotaktrirr.. Torr. Mex. Bound. 56, 1. 17. 

 A. oophorus. Watson, lung's Rep. 5. 73 & 441. Gray, Bot. Calif. 1. 148. 

 A. Oreganus. Nutt. ; Torr. & Gray, Fl. 1. 335. Eat. & Wr. 150. Walp. Rep. 

 1. 703. Dietr. 4. 1085. Gray, Proc. Am. Acad. 6. 202. Watson, King's Eep. 5. 4.38. 

 A. oroboides. Hornem. Fl. Dan. 8, 1. 1396. See syn. in Ledeb. FL Ross. 1. 602 ; 

 Gray, Proc. Am. Acad. 6. 205 ; Bunge, Astrag. 2. 26. 



