Phaseolus. Prosopis] LEGUMINOS&. 251 
1. 160, t. 23. Don, Mill. 2.349. Beck, Bot. 91. Hook. Comp. Bot. Mag. 1. 24. 
Darling. Fl. Cestr. 429. Torr. & Gray, Fl. 1.279. Eat. & Wr. 352. Dietr. 4. 1189. 
Chapman, 106. Gray, Manual, 140. 
Dolichos polystachyus. Linn. Spec. 726. Hill, Veg. Syst. 21, t. 20. Lam. Dict. 
2.298. Willd. Spec. 3. 1049. 
P. paniculatus. Michx. Fl. 2.60. Persoon, 2. 295. Poir. Suppl. 3. 5. 
P. macrostachys, Elliott, Journ. Acad. Philad. 1. 324 (Litt.-Ber. zu Linnza, 1828, 
164). DGC. Prodr. 2. 391. Don, Mill. 2. 349. 
P. retusus. Benth. Pl. Hartw. 11. Walp. Rep. 1.770. Gray, Pl. Lindh. 170; 
Pl. Wright. 1. 45 & 2. 32. Torrey, Mex. Bound. 49. 
P. maculatus. Scheele, Linnea, 21. 465. 
P. rotundifolius. Gray, Pl. Wright. 2. 34. Walp. Ann. 4. 561. 
P. sinuatus. Nutt.; Torr. & Gray, Fl. 1.279. . Eat. & Wr. 352. Walp. Rep. 
1.770. Dietr. 4.1189. Gray, Pl. Wright. 1.43. Chapman, 106. 
P. Wrightii. Gray, Pl. Wright. 1. 43 & 2. 53. Walp. Ann. 4.562. Torrey, Mex. 
Bound. 49. 
P. angulosus ; diversifolius. P. monoicus ; Amphicarpza monoica. 
Caribeus ; Rhynchosia minima. paniculatus ; perennis. 
Jrutescens ; Wistaria frutescens. parabolicus & peduncularis ; helvolus. 
latifolius ; Rhynchosia latifolia. Pitcheri; Amphicarpza monoica. 
leiospermus ; pauciflorus. reniformis ; Rhynchosia tomentosa. 
macrostachys ; perennis. trilobus ; diversifolius. 
maculatus ; retusus. tuberosus ; Apios tuberosa. 
menispermoideus ; Rhynchosia meni- vexillatus ; helvolus. 
spermoidea. 
PICKERINGIA montana. Nutt.; Torr. & Gray, Fl. 1. 389. Durand, PI. 
Pratten. 86. Torrey, Mex. Bound. 51, t.14; Bot. Wilkes, 282. Bolander, Proc. 
Calif. Acad. 3.79; Cat. 10. Brew. & Wats. Bot. Calif. 1. 114. 
PISCIDIA Erythrina. Linn. Spec. 2 ed. 993. Lam. Dict. 1. 433; IIl. t. 605. 
DC. Prodr. 2. 267, with syn. Nutt. Sylva, 2. 31,t. 52. Griseb. Fl. Brit. W. Ind. 
200. Chapman, 110. 
PITHECOLOBIUM brevifolium. Benth. in Gray, Pl. Wright. 1. 67; Rev. 
Mim. in Trans. Linn. Soc. 30. 592. Torrey, Mex. Bound. 62. 
Acacia Nueciana. Buckley, Proc. Acad. Philad. 1861, 455; fide Gray, same, 
1862, 163. 
P. dulce. Benth. in Hooker’s Lond. Journ. Bot. 3.199; Rev. Mim. 572, with 
syn. (Sonora.) 
P. Unguis-Cati. Benth. in Hook. Lond. Journ. Bot. 3. 200; Rev. Mim. 572 & 648, 
with syn. Griseb. Fl. Brit. W. Ind. 226. Chapman, 116. 
Inga Unguis-Cati. Willd. Spec. 4. 1006. Nutt. Sylva, 2. 37, t. 54. 
P. Guadalupense. Nutt. Sylva, 2. 40, t. 55. Chapman, 116. 
PROSOPIS cinerascens. Benth. Rev. Mim. in Trans. Linn. Soc. 30. 381. 
Watson, King’s Rep. 5.420. Brew. & Wats. Bot. Calif. 1. 163. 
P. reptans. Benth. in Hook. Journ. Bot. 4. 352, in part. 
Strombocarpa cinerascens. Gray, Pl. Wright. 1.61. Walp. Ann. 4. 614. Torrey, 
Mex. Bound. 60. 
Mimosa calcarea. Buckley, Proc. Acad. Philad. 1861, 453; fide Gray, same, 
1862, 163. 
