Astragalus.] LEGUMINOS^. 197 



A. megacarpus. Gray, Proc. Am. Acad. G. 215; Bot. Calif. 1. 148. Watson, 

 King's Hep. 5. 441. 



Phaca me^jacarpa. Nutt. ; Torr. & Gray, Fl. 1. 343. Eat. & Wr. 350. Walp. 

 Eep. 1. 685. 

 Yar. Parryi. Gray, Bot. Calif. 1. 148. Parry, Am. Naturalist, 9. 270. 



A. Menziesii. Gray, Proc. Am. Acad. 6. 217 ; Bot. Calif. 1. 150. Boland. Cat. 10. 

 Watson, King's Rep. 5. 441. Torrey, Bot. Wilkes, 277. 



PImca densifulia. Smith, Rees' Cyc. n. 9. DC. Prodr. 2. 274. Spreng. Syst. 

 4'. 287. Don, Mill. 2. 248. Hook. Icon. t. 282. Hook. & Arn. Bot. Beechey, 138 

 & 334. Torr. & Gray, Fl. 1. 344. Eat. & Wr. 351. Benth. I'l. Hartw. 306. 



Phaca Nuttallli. Torr. & Gray, Fl. 1. 343. Eat. & Wr. 351. Walp. Kcp. 1. 685. 



A. densifoUus. Torrey, Pac. E. Rep. 7. 10, not Lam. 



A. Mexicaiius. DC. PL Rar. Gen. 4. 16, t. 3. Torr. & Gray, FL 1. 693. Gray, 

 PL Wright. 1. 51 ; Proc. Am. Acad. 6. 193; Manual, 132. Watson, King's Rep. 

 5. 435. Porter, Fl. Col. 23. 



A. trkhocahjx. Nutt. ; Torr. & Gray, Fl. 1. 332. Eat. & Wr. 149. Walp. Rep. 

 1. 700. Engeim. Am. Jouni. Sci. 1. 46. 96. Dietr. 4. 1080. Young, Fl. Texas, 227. 



A. microcystis. Gray, Proc. Am. Acad. 6. 220. Y'atson, King's Eep. 5. 442. 



A. microlobus. Gray, Proc. Am. Acad. 6. 203. Watson, lung's Rep. 5. 438. 

 Porter, FL Col. 25. 



A. gracilis. James, Cat. 1S6. Torrey, Ann. Lye. N. Y. 2. 179. Gray, Am. 

 Journ. ScL 2. 33. 410; Proc. Acad. Philad. 1863, 60. 



A. miser. Dougl. ; Hook. FL Bor.-Am. 1. 153. Torr. & Gray, Fl. 1. 338. Gray, 

 Proc. Am. Acad. 6. 228. Watson, lung's Rep. 5. 444. 



A. debilis. Walp. Rep. 1. 710. Dietr. 4. 1098. 



A. Missouriensis. Xutt. Genera, 2. 99. James, Cat. 186; Long's Exped. 2. .3-33. 

 DC. Prodr. 2. 287. Spreng. Syst. 3. 300. Don, Mill. 2. 258. Torr. & Gray, Fl. 



1. 331 & 692 ; Pac. E. Eep. 2. 163. Nces, PL Wied, 7. Dietr. 4. 1080. Gray, PL 

 Fendl. .35; PL Thurb. 300; Pac. E. Eep. 12. 41 ; Ives's Eep. 10; Proc. Acad. Philad. 

 1863, 60; Proc. Am. Acad. 6. 210. Torrey, Sitgr. Eep. 158; Pac. E. Eep. 4. So. 

 Engeim. PL Upp. Miss. 189. PL Bourgeau, 255. Watson, King's Eep. 5. 440. Por- 

 ter, Hayd. Eep. 1871, 481 ; Fl. Col. 26. Eothr. PL Wheeler, 36. 



A. melanocarpus. Nutt. Eras. Cat. 1813. Eichard. in Frankl. Journ. 18. Hook. 

 FL Bor.-Am. 1. 150. Don, Mill. 2. 472. 



Phaca crciacea. Buckley, Proc. Acad. Philad. 1861, 452 ; fide Gray, same, 1862, 

 162. Walp. Ann. 7. 740. 



A. mollissimus. Torrey, Ann. Lye. N. Y. 2. 178 ; Frem. Eep. 89 ; Pac. E. Eep. 

 4. So. Don, Mill. 2. 271. Torr. & Gray, Fl. 1. 337 ; Pac. E. Eep. 2. 163. Eat. & Wr. 

 148. Walp. Eep. 1. 709. Dietr. 4. 1096. Gray, PL Fendl. 35; PL Wright, i. 53 & 



2. 42; Proc. Acad. Philad. 1863, 60; Proc. Am. Acad. 6. 195. Engeim. PL Upp. 

 Miss. 1S9. Watson, King's Eep. 5. 436. Porter, Fl. Col. 23. 



Phaca villosa. James, Cat. 1S6. 



A. cjlareoso aff. Gray, Am. Journ. Sci. 2. 33. 410. 



A. Mortoni. Nutt. in Journ. Acad. Philad. 7. 19. Torr. & Gray, FL 1. .3.30. Eat. 

 & Wr. 138. Walp. Eep. 1. 699. Dietr. 4. 1079. Gray, Proc. Am. Acad. 6. 196; 

 Bot. Calif. 1. 155. Anderson, Cat. PL Nev. 120. 



A. tristis. Nutt. ; Torr. & Gray, Fl. 1. 336. Eat. & Wr. 150. Walp. Eep. 1. 704, 

 Dietr. 4. 1086. 



A. spicatus. Nutt. ; same citations. Torrey, Nicol. Eep. 14S 1 



