Preussii var. sulcatus Jones Cont. 4 37 (1893). 
Eastwoode Jones Cont. 6 368 (1894). - born ct 
Pringlei Watson Proc. Am. Acad. 21 449 (1886). No. 249 p. 276. 
procerus Gray Proc. Am. Acad. 13 369 (1878) is A. Pattersoni var. 
prelongus (Sheldon) Jones. 
procumbens Watson Proc. Am. Acad. 20 361 (1885) is A. accum- 
bens Sheldon. B 
.proriferus Jones Cont. 5 275 (1893) No. 40, p. 101. 
prunifer Rydberg Fl. Mont. 239 (1900) is A. crassicarpus Nutt. 
praniformis Jones Cont. 7 660 (1895) is A. accidens var. Hender- 
soni (Watson) Jones. wore: E 
‚pterocarpus 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. 
Pulsifere Gray Proc. Am. Acad. 10 69 (1874) No. 33, p. 98. 
Suksdorfii Howell Erythea 1 111 (1893). 
Tragacantha—Kuntze Rev. Gen. 2 947 (1891). 
puniceus Osterhout Muhl. 1 140 (1906) is A. Missouriensis. - 
Xylophacos—Rydberg Torr. Bull. 32 662 (1905). 
Purpusi Jóñes Cont. 14 34 (1912) No. 265, p. 281. 
Purshii Doug}. in Hook. Fl. Bor. Am. 1 152 (1834) No. 181, p. 222. 
Phaca mollissima Nutt. in T. € G. Fl. 1 350 (1838). 
-Xragacantha—Kuntze Rev. Gen. 2 917 (1891). 
Xylophacus Rydberg Torr. Bull. 32.662 (1905). ‘Also Heller Muhl. 
2 247 (1906). . - 
Var. coccineus Parry West Am. Sci. 7 10 (1890). Nomen nudum, 
; ‚is A. coccineus (Parry) Brandegee. 
Var. interior Jones p. 222. - ee DET 
Var. longilobus Jones Cont. 5:269: (1893) p. 223. 
Var. Vis REN Jones Cont. 5:270 (1893) and Cont. 10 61 (1902) 
Var. lectulus (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 glareosus Jones.p. 221. p a 
Purshii x Newberryi Jones p. 216. ; 
Purshii x Watsonianus Jones p. 216. = : 
pychnostachyus Gray Proc. Am. Acad. 6 257 ( 1864) No. 45, p. 103. 
Tragacantha—Kuntze Rev. Gen. 2 (1891). 2 
pygmaeus (Nutt.) Jones No. 170, p. 210. ` : 
Phaca pygmaea-Nutt. in T. & G. Fl. 1 349 (1838). 
Tragacantha—Kuntze Rev. -Gen. 2 941 (1891). 
XylopHacos' Rydberg Torr. Bull. 32 662 (1905). — 
. A. Chamaeleuce Gray Bot. Ives 10 (1860). . ; 
< Vor o qur Jones Cont. 7 672 (1895) as Chamaeleuce var. 
quinqueflorus Watson Proc. Am. Acad. 21 450 (1886) No. 23, p. 84. 
racemosus 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) B MIL es xt 
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). - [i 
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. — 
exus T. & G. Fl. N. A. 1334 (1838) No. 266, p. 284. ^"^ 
ragacantha—Kuntze Rev. Gen. 2 (1891). ^ 
ones Cont. 7 658 (189 
loridae Jones p. 
No. 169, p: 209: ate 
