Proussii var. sulcatus Jones Cont. 4 37 (1893). 



Easlwoodae Jones Cont. 6 368 (1894). 

 Prindei Watson Free. Am. Acad. 21 449 (1886). No. 249 p. 276. 

 pi-ocerus Gray Proc. Am. Acad. 13 369 (1878) is A. Pattei-soni var. 



prselonp:us (Sheldon) Jones, 

 procumbens Watson Proc. Am. Acad. 20 361 (1885) is A. accum- 



bens Sheldon, 

 proriferus Jones Cont. 5 275 (1893) No. 40, p. 101. 

 prunifer Rydberg Fl. Mont. 239 (1900) is A. crassicarpus Nutt. 

 pruniformis Jones Cont. 7 660 (1895) is A. accidens var. Hender- 



soni (Watson) Jones, 

 ptcrocarpus Watson Bot. King 71 (1871) No. 102, p. 147. 

 pubentissimus T. & G. Fl. 1 693 (1840) No. 35, p. 99. 



multicaulis Nutt. in T. & G. Fl. 1 335 (1838). 



Peabodianus Jones Cont. 3 295 (1893). 



Tragacantha — Kuntze Rev. Gen. 2 (1891). 

 Pueblae Jones Cont. 14 35 (1912) No. 248, p. 275. 

 Pulr,ifGr« Gray Proc. Am. Acad. 10 69 (1874) No. 33, p. 98. 



Sukodorfii Howell Erythea 1 111 (1893). 



Tragacantha — Kuntze Rev. Gen. 2 947 (1891). 

 puniceus Osterhout Muhl. 1 140 (1906) is A. Missouriensis. 



Xylophr.cos — Rydberg Torr. Bull. 32 662 (1905). 

 Purpusi Jones Cont. 14 34 (1912) No. 265, p. 281. 

 Pushii Dougl. in Hook. Fl. Bor. Am. 1 152 (1834) No. 181, p. 222. 



Phaca mollissima Nutt. in T. & G. Fl. 1 350 (1838). 



Trpgacantha — Kuntze Rev. Gen. 2 917 (1891). 



Xylophacus Rydberg Torr. Bull. 32 662 (1905). Also Heller Muhl. 

 2 217 (1906). 



Var. coccineus Parry West Am. Sci. 7 10 (1890). Nomen nudum, 

 is A. coccineus (Parry) Brandegee. 



Var. interior Jones p. 222. 



Var. longilobus Jones Cont. 5 269 (1893) p. 223. 



Var. leucolobus Jones Cont. 5 270 (1893) and Cont. 10 61 (1902) 

 p. 223. 



Var. Icctulus (Watson) Jones Cont. 10 61 (1902) p. 223. 

 A. lectulus Watson Proc. Am. Acad. 22 471 (1887). 



Var. tinctus Jones Cont. 5 269 (1893) p. 223. 

 Purshii x glareor.us Jones p. 221. 

 Purshii x Nev/berryi Jones p. 216. 

 Purr>hii x Watsonianus Jones p. 216. 

 pychnostachyus Gray Proc. Am. Acad. 6 257 (1864) No. 45, p. 103. 



Tragacantha — Kuntze Rev. Gen. 2 (1891). 

 pygmaeus (Nutt.) Jones No. 170, p. 210. 



Phaca pygmaea Nutt. in T. & G. Fl. 1 349 (1838). 



Tragacantha — Kuntze Rev. Gen. 2 941 (1891). 



Xylophricos Rydberg Torr. Bull. 32 6G2 (1905). 



A. Cliamaeleuce Gray Bet. Ives 10 (1860). 



Var. laccoliticus Jones Cont. 7 672 (1895) as Chamaeleuce var. 

 p. 211. ■ - . 



quinqueflorus Watson Proc. Am. Acad. 21 450 (1886) No. 23, p. 84. 

 raeemosus Pursh Fl. 740 (1814) No. 208, p. 247. 



Tragacantha — Kuntze Rev. Gen. 2 (1891). 



Tium— Rydberg Torr. Bull. 32 659 (1905). 



Var. brevisetus Jones Cont. 7 662 (1895) p. 247. 



Var. longisetus Jones Cont. 7 663 (1895) p. 247. 

 rasus Sheldon Minn. Bot. Stud. 9 158 (1894) is A. scopulorum P. & C. 

 Rattani Gray Proc. Am. Acad. 19 75 (1883) No. 238, p. 269. 



pauperculus Greene Pitt. 3 224 (1897). 

 recedens Greene Unpub.(?) is A. Pattersoni Gray, 

 recticarpus Wood Bot. Gaz. 3 50 (1878) is A. Lindheimeri Gray. 

 recurvus Greene Bull. Cal. Acad. 3 155 (1885) No. 141, p. 186. 

 reflexus T. & G. Fl. N. A. 1 334 (1838) No. 266, p. 284. 



Tragacantha — Kuntze Rev. Gen. 2 (1891). 

 remulcus Jones Cont. 7 658 (1895) No. 169, p. 209. 



Var. Chloridae Jones p. 210. _ 



