COMPOSITAE 



863 



PENTZIA (Tanacetum spec.) 

 L'Heritier [de Brutelle], C. L. [Tanacetum flabelliforme.] 



(/ft his Sertum anglicum ... p. 13, pi. 27. 1788.) 

 Curtis, ^^"illiam. Tanacetum flabelliforme. (Bot. Mag. VI. 



pi. 212. 1793.) 

 Brown, N. E. Pentzia virgata Less. (Hooker's Ic. Plant. 



XXVI. pi. 2529. 1899.) 



PEREZIA (HoMOiANTHus; Trixis spec.) 

 La Llave, P[ablo] de & Lexarza, J[uan]. [Perezia fruticosa.] 



{1)1 their Novorum vegetabilium descriptiones, I. 26. 1824.) 

 Hooker, Sir W. J. & Amott, G. A. W[al]£er-]. [Trixis latifoUa.] 



{In their Botany of Capt. Beechey's voyage ... p. 300. 



18[30H1.) 

 Hooker, Sir W. J. Homoianthus echinulatus Cass. (Hooker's 



Ic. Plant. V. pi. 491. 1842.) 



PERTYA 



Oliver, D[aniel]. Pertya sinensis OH v. (Hooker's Ic. Plant. 

 XXIII. pi. 2214. 1894.) 



PERYMENIUM 



Robrason, B. L. & Greemnan, J. M. Revision of the genera 

 Montanoa, Perymenium and Zaluzania. — Contributions 

 from the Gray herbarium of Harvard University, new ser. 

 XVI. (Amer. Acad. Proc. XXXIV. 507-534. 1899.) 



PETAI^^CTE 



Dietrich, D. N. F. [Petalacte coronata.] (In his Flora uni- 

 versalis . . . Neue Folge ... pi. 8. 1849-56.) 



PETALACTEULA 



Brown, N. E. [Petalactella Woodii.] (Kew Bull. Misc. In- 

 form. 1894, p. 100.) 



Oliver, D[aniel]. Petalactella Woodii N. E. Br. (Hooker's 

 Ic. Plant. XXIV. pi. 2352. 1895.) 



PETROBIUM (BiDENS spec, Spilanthes spec.) 

 Forster, Georg. [Spilanthes arboreus.] (7?i his De plantis 



magellanicis et atlanticis commentationes, pp. 56-57. 



[1787.]) 

 Roxburgh, WilHam. [Bidens arborea.] (In Beatson, Alex- 

 ander. Tracts relative to the island of St. Helena, pp. 



301-302. 1816.) 

 • [Spilanthes tetrandra.] (In Beatson, Alexander. 



Tracts relative to the island of St. Helena, p. 325. 1816.) 

 Hooker, Sir J. D. Petrobium arboreum Bri (Hooker's Ic. 



Plant. XI. 40-41, pi. 1053. 1867-71.) 

 Melliss, J. C. [Petrobium arboreum.] (In his St. Helena 



... p. 287, pi. 42. 1875.) 



PEUCEPHYLLUM 



Torrey, John. [Peucephyllum Schottii.] (In Emory, W. H. 



Report on the United States and Mexican boundary survey 



... II. pt. 1, p. 74. 1859.) 

 Coville, F. V. [Peucephyllum Schottii.] (Contrib. United 



States Nat. Herb. IV. 138-139. 1893.) 



PHAJENOCOMA (Helichrtstjm [Elichrtsum] 

 spec, Xeranthbmum spec.) 



Schneevoogt, G. V. [Xeranthemum proliferum.] (In his 

 Icones plantarum rariorum, f. 46, pi. 1793-[95].) 



Andrews, Henry. Xeranthemum prohferum. [1804.] An- 

 drews Bot. Rep. VI. pi. 374.) 



Wendland, J. C. [HeUchrysum prohferum.] (In his Col- 

 lectio plantarum ... I. 68-70, pi. 23. 1808.) 



[Ker, J. B.] EUchrysum proliferum. (Bot. Reg. I. 21, pi. 

 1815.) 



Loddiges, Conrad & Sons. Elichrysum proliferum. (Lod- 

 digcs' Bot. Cab. I. pi. S. 1817.) 



Sims, John. Elichrysum prohferum. (Bot. Mag. L. pi. 

 2365. 1823.) 



Nees von Esenbeck, T. F. L. & Sinning, W[illiehn]. [HeU- 

 chrysum prohferum.] (In their Sammlung . . . pp. 26-28, 

 pi. 1831.) 



Dietrich, D. N. F. Phaenocoma prohfera. (In his Flora 

 universahs . . ._ Neue Folge . . . pi. 8. 1849-56.) 



De Wildeman, iilm[ile]. [Phaenocoma prolifcra.] {In his 

 Icones selectae Horti thenensis, II. 5-8, pi. 42. 1900 — >) 



PHAEOCEPBUXUS 



Moore, S. Le M. [Phaeocephalus gnidioides.] (Jour. Bot. 

 XXXVIII. 158-159. 1900.) 



PHAGNALON 



Cassini, Henri. Description des nouveaux genres Garuleum 

 et Phagnalon. (Soc. Philom. BuU. 1819, pp. 172-174.) 



Webb, P. B. {In Hooker, Sir W. J. Niger flora, pp. 135- 

 137, pi. 9. 1849.) 



PIPTOCOMA 



BaUlon, H[enri]. Sur le veritable Piptocoma. [P. rufescens.] 

 [1880.] (Soc. Linn. Paris Bull. I. 268. 1889.) 



PIQUERIA 



Cassini, H[enri]. Description d'une nouveUe espece de Pi- 

 queria. [P. quinquefiora.] (Soc. Philom. Bull. 1819, pp. 127- 

 128.) 



PLAJVALTOA 



Taubert, P[aul]. [Planaltoa salvifolia.] (Bot. Jahrb. XXI. 

 454-455, pi. 3. 1896.) 

 PLEIOTAXIS 



Durand, T[heophile] & De Wildeman, E[mile]. [Pleiotaxis 

 Dewevrei.] (Soc. Bot. Belg. Bull. XXXIX. pt. 2, pp. 34-35. 

 1900.) 



PLUCHEA (Laggera spec) 



Kunth, K. S. & Bouche, [C. D.]. (Linnaea, XIX. 391-392. 

 1847.) [Central American species.] 



Baker, J. G. (Kew Bull. Misc. Inform. 1895, p. 182.) [Spe- 

 cies of western Asia.] 



P. amabilis: Kimth, K. S. (Index Sem. Hort. Berol. 

 p. 12. [1845.] — Ann. Sci. Nat. Bot. ser. 3, V. 361. 1846.) 



P. arguta : Bentham, George. Pluchea frutescens Benth. 

 (Hooker's Ic. Plant. XII. 51, pi. 1157. 1876.) 



P. Bravae: BoUe, Cari. (Bonplandia, VIII. 130-131. 

 1860.) 



P. conocephala: Mueller, Ferdinand, Baron von. Re- 

 marks on a new Victorian Haloragis, and on the occurrence of 

 the genus Pluchea mtliin the Victorian territorj'. (Roy. Soc. 

 Victoria Trans. Proc. XXIV. pt. 2, pp. 132-139. 1888. 

 See pp. 138-139.) — Reprinted: 10 pp. O. t-p-c [Mel- 

 bourne, 1888.] 



P. longepedunculata: Kunth, K. [S.]. (Ann. Sci. Nat. 

 Bot. ser. 3, V. 361-362. 1846.) 



P. pinnatif Ida : Bentham, George. Pluchea pinnatifida 

 Hook. f. (Hooker's Ic. Plant. XII. 50, pi. 1156. 1876.) 



P. serra: Franchet, A[drien]. (In his Sertum somalense, 

 pp. 35-35. [1882.]) 



P. sordida: Vatke, W[ilhelm]. [Laggera sordida.] (Oesterr. 

 Bot. Zeitschr. XXV. 325. 1875.) 



P. tetranthera: Mueller, F[erdinand, Baron] von. (In 

 his Report on the plants collected during Mr. Babbage's ex- 

 pedition ... in 1858, p. 12. 1858.) 



P. verrucosa: Klatt, F. W. (In Decken, K. C. von der. 

 Reisen in Ost-Afrika . . . III. pt. 3, pp. 76-77. 1879.) 



PODANTHUS (Euxenia; Baccharis spec) 

 Chamisso, Adalbert von. Ex plantis in expeditione Roman- 

 zoffiana detectis genera tria nova. (Horae Phys. Berol. 

 1820, pp. 69-76, pi. 14-16.) 

 Euxenia grata (p. 75, pi. 16). 



Weimnann, J. A. [Baccharis chilensis.] (SyU. Plant. Nov. 



Regensb. II. 27-28. 1825-28.) 

 Lindley, John. [Podanthus Mitigui.] (Hort. Soc. Land. 



Trans. VII. 247-248. 1830.) 



PODOPHANIA 



Baillon, H[enri]. Sur le Podophania. [1880.] (Soc. Linn. 

 Paris BuU. I. 268-269. 1889.) 

 POLYACHYRUS 



PhiUppi, R. A. Sobre los especies chilenas del jenero Po y- 

 achyrus. 15 pp. 1 pi. O. Santiago de Chile, 1886. — 

 From: Univ. Chile Anal. LXIX. 



POLYaiNIA 



Triana, J[ose]. [Polymnia pyramidaUs.] (Ann. Sci. Xat. Bot. 

 ser. 4, IX. 40-41. "1858.) 

 POROPHYLLUBI 



Bentham, George. [Porophyllum tridentatum.] (In his 

 Botany of the voyage of . . ". Sulphur, p. 30. 1844-16.) 



Robinson, B. L. & Greenman, J. il. A provisional key 

 to tlie species of Porophylhini, ranging north of tlio Isthmus 

 of Panama. — Contributions from the Gray herbarium of 

 Ilarvaixl university, new ser. X. (.iHicr. .icad. Proc. XXXII. 

 31-33. 1897/> 



