PTEROSPERMUM— PYNAERTIODENDRON 



169 



PTEROSPERMUM :— 



Levinei, Merrill in Philipp. Jount Sc, Bot. 1918, xiii. 



146. — China (Kwangtung). 

 megalanthum, Merrill in Philipp. Jouin. Sc. 1'J19, xiv. 



420. — Ins. Philipp. (Panay). 



PTEROSTYIilS, K. Br, (Orchidac.% 



areolata, Petrie in Trans. N. Z. Inst. 1917, 1. 210 



(1918).— N. Zel. 

 novo-guineensis, Ridlcy in Trans. Liiin. Soc, Bol, ix. 



208 (1916).— N. Guin. 

 pusilla, R. S. Rogers in Trans. Roy. Soc. S. Attslral. 



1918, xlii. 26.— Austral. 

 Toveyana, Ewart tf Sharman in Proc. Roy. Soc. Vict. 



n. s. xxviii. 235 (1916).— Austral. (Victoria). 



PTEROSTYRAX, Sieb. & Zucc. (Slyracac). 



burmanicus, W. IV. Smith (y Farrer in Notes Bot. Gard. 

 Edin. xii. 233 (1920).— Upper Burma. 



PTEROTHRIX, DC. (Compos.). 



Engleriana, Phillips Cy Hutchinson in Ann. S. Afr. 



Mtts. ix. 327 (1917) : Pteronia Kngleriana. 

 riaccida, Schlechter ex Hiitchinson, l. c 379, nomen. — 



Afr. austr. (Cape Prov. ). 



PTERYGOCARPUS, Ilcchst. (Asclepindac). 



floribundus, Stiint:: in U. S. Dept. Agric, Bttr. Pl. 

 Ind., Invent. Sceds if Pl. Import. No. 32, 39 (1914) : 

 Dregea floribunda. 



PTERYGODIUM, Sw. (Orchidac). 



alare, Dritce in Rcp. Boi. Excli. Cl. Brit. Isks, 1916, 

 642 (1917J : Ophrys alaris. 



PTERYXIA, Nutt. (Umbellif.). 



Elrodi, Rydb. Fl, Rocky Mts. 621 (1917) : Cymopttrus 

 Elrodi. 



PTIIjAGROSTIS, Griseb. (Gramin.). 



tianschanica, Krassn. ex Roshev. in B. Fcdtsch. Fl. 

 Asiat. Ross. xii. 133 (1916). — Turkestan. 



PTILOCHAETA, Turcz. (Malpis^hiac). 



densidora, Niedenzit in Arb. Bot. Inst. Brattnsberg, v. 

 7 (1914J.— Parag. ; Eras. (Bahia). 



PTILOTUS, R. Br. (Amarantac). 



Johnstonianus, W. V. Fitzg. in Journ. Roy. Soc. IV. 



Austral. iii. 138 (1918).— W. Austral. 

 longistachyus, W. V. Fitzg. l. c. — W. Austral. 

 oblongifolius, Gandogcr in Bitll. Soc Bot. Fiaitcc, 1919, 



Ixvi. 222.— Austral. (N. S. Wales). 



PTYCHORAPHIS, Becc. (Palmae). 



cagayensis, Bccc. iii Pliilipp. Journ. Sc. 1919, xiv. 328 : 



Heterospalhe cagayensis. 

 Elmeri, Becc. l. c : Heterospathe Ehneri. 

 intermedia, Becc. in Elnier, Leafl. Philipp. Bot. viii. 



3011 (1919).— Ins. Philipp. (Mmdanao ; Luzon). 

 microcarpa, Becc. iii PhtUpp. Joiirn. Sc. 1919, xiv. 327. 



— Ins. Philipp. (Camiguin de Misamis). 



PTYCHOTIS, Koch (Umbellif.). 



leptophylla, Penzig, Contrib. Storia Bot. 21 ;1905) : 

 Apium leptophyllum. 



PTYXOSTOMA, Vahl (Brnniac.J. 



acutifiorum, Druce in Rep. Bot. E.xcli. Cl. Brit. Islcs, 



1916, 642 (1917) : Lonchostoma acutiflorum. 

 monostylis, Driice, l. c. : Lonchostoma monostylis. 

 pentandrum, Drttce, l. c. : Gnidia pentandra. 



PUCCmELLIA, Parl. (Gramin.). 



arctica, Fcrnaldif Weatherby in Rhodora, 1916, xviii. 



5, in adnol. : Glyceria arcticn. 

 baltica, O. R. Ilolntberg in Bot. Notiser, 1916, 253 : 



Glyceria baltica. 

 Beckii, O. R. Holmbcrg. l. c 1920, 109, hybr.— Hungar. 

 coarctata, Fernald tf Weatherby iii Rhodora, 1916, 



xviii. 13. — Am. bor.-occ 

 Cusickii, Weatherby, l. c. 182. — Canada; U.S.A. 

 Dusenii, O. R. Holiiiberg in Bot. Notiser, 1916, 253, 



hybr. : Glyceria Dusenii. 

 elata, O. R. Holmberg, l. c. 254, hybr. : Atropis elata. 

 Foucaudi, O. R. Holmberg, l. c. 1920, 108 : Atropis 



Foucaudi. 

 hybrida, O. R. Holmberg, l. c. 105, hybr. : P. katte- 



gatensis. 

 kattegatensis, O. R. Holmberg, l. c. 1916, 254, hybr. — 



Suecia. 



PUCCINELLIA — 



laurentiana, Fernald if Weatherby in Rhodora, 1916, 



xviii. 14. — Can:ida (Quebec). 

 limosa, O. R. Holmberg in Bot. Notiscr, 1920, 110 : 



Atropis limosa. 

 Incida, Fernald if Weathcrby iii Rhodoia, 1916, xviii. 



16. — Am. bor. 

 macra, Fernald if Weatherby, L c. 15. — Canada 



(Quebec). 

 mixta, O. R. Holmberg in Bot. Noliser, 1920, 106, 



hybr. — Suecia. 

 nntkaen^is, Fernald if Wcathcrby iii Rhodoia, 1916, 



xviii. 22, in adnot. : Poa nutkaensis. 

 pannonica, O. R. Holmbcrg in Bot. Notiscr, 1920, 107 : 



Atropis pannonica. 

 paupercula, Fernald if Weatlierby in Rhodora, 1916, 



xviii. 18 : Glyceria paupercula. 

 retroflexa, O. R. Ilolnibeig iii Liitdm. Svcnsk Faitcro- 



gamfl. 97 (1918) : Poa retroflexa. 

 rupestris, Fcrnald tf Weathcrby iit Rhodora, 1916, 



xviii. 10 : Poa rupestris. 

 salinaria, O. R. Holmberg in Bot. Notiser, 1920, 108 : 



Festuca salinaria. 

 suecica, O. R. Holmberg, l. c. 1916, 254 : Atropis 



suecica. 

 vaginata, Fernald if Wealhciby in Rhodoia, 1916, xviii. 



14, in obs. : Glyceria vaginata. 



PUELIA, Franch. (Gramin.). 



guluensis, Vandciyst iit Bull. Agric. Congo Belg. 1920, 

 xi. 125. — Congo Belg. 



PUERARIA, DC. (Legnmin.). 



bicalcarata, Gagncp. in Lccoiiile, Not. Syst. iii. 201 



(1916).— China (Yunnan). 

 pilosissima, E. G. Bakcr iit Traiis. Liitn. Soc, Bot. ix. 



33 (1916).— N, Guin, 

 tonkinensis, Gagnep. iit Lccomtc, Not. Syst. iii. 202 



(1916).— Indo-China (Tojikin). 

 triloba, Makiiio iit lintima, Somoktt-Dstisetstt, ed. 3, 



fasc iii. 954, vol. xiii. t. 22 (1912) : Dolichos trilobus, 



Lotir. 



PULICARIA, Gaertn. (Compos.). 



Burchardii, Hutchinson iit Ilook. Ic. PL t. 3056 (1916). 



— Ins. Canar. (Fuertevcnlura). 

 laniceps, Boritm. iit Notizbl. Bot. Gart. Bcrlin, vii. 152 



(1917). — Mesopotam. 

 paradoxa, Rouy, Fl. France, viii. 208 il903). — Gallia. 

 rajputanae, Blatter if Hallb in Jotirit. Bombay Nat. 



Hist. Soc. xxvi. 535 (1919). — Ind. or. (Kajputana), 

 scabra, Druce iit Rcp. Bot. E.xch. Cl. Biit. Islcs, 1916, 



642 (1917) : Erigeron scaber. 



PULLBA., Sclilechterin Herderschee, Nova Guinca, xii, 

 492 (l'.il7). CUNONIACEAE. 

 glabra, Schlechtcr, /. c. — N. Guin. 



papuana, L. S. Gibbs, Phytogcogr. if FL Aifak Mts. 141 

 (1917).— N. Guin. 



PULSATILLA, Mill. (Ranunculac). 



Christii, Beaitverd in Biill. Soc. Bot. Gciteve, 1918. 



Ser. II, X. 291 (1919), hybr, -Helvet, 

 Emiliana, Beauverd, l. c. 292, hybr. : Anemone Enuliana. 

 Girodi, Rouy in Rotiy if Fouc. Fl. Fraitce, v. 318 



(1899), in syn. : Anemone fiirodi. 

 Knappii, Palez. in Btill. Soc Bot. Gencvc, 1918, Ser. II 



X. 295 (1910), hybr.— Helvet. 

 Malhildae, Palez. L c. 296, hybr. — Helvet. 

 nigricans, Storck, Libcllus de usit mcdico Pulsatillac 



ntgricantis, 7 (1771.) ; Schcd. Fl. Hting. Exsicc i. 



17, — Austria ; Hungar. 

 nivalis, Nakai in Bot. Mag., Tokyo, 1919, xxxiii. 50. — 



Corea. 

 polyscapa, Bcativcrd in Btill. Soc. Bot. Gcncve, 1918, 



S(^r. II, X. 293 (1919),— Helvet. 



PULTENAEA, Sm, (Legumin.). 



cajiitata, Druce in Rcp. Bot. Exch. CI. Bril. Isles, 



1916, 642 (1917) : Urodon capitatus. 

 subalpina, Druce, I. c. 643 : Burtonia subalpina. 



PUPALIA, Juss. (Amarantac). 



seiicea, Fiori in Cliiov. Rcsiilt. Sc. Miss. Stcfan.-Paoli 

 Somal. Ital. i. 149 (1916), nomen. — Somaliland, 



PUTRANJIVA, Wall. (Euphorbiac). 



integerrima, Koidz. in Bot. Mag., Tokyo, 1919, xxxiii. 



117. — Ins. Bonin. 

 Matsumurae, Koidz. I. c. 116., — Ins. Liukiu ; Formosa? 



PUYA, Molina (Bromeliac). 



cylindrica, Mcz iit Fedde, Repeit. xvi. 66 (1919). — 



Peruv. 

 formosa, Speg. iit Physis, iii, 155 (1917). — Argent, 

 Haulhalii, Mcz in Fcddc, Repcrt. xvi. 65 (1919).— 



Boliv. 

 Herzogii, Wittm. in Mcdcd. Ilcrb. Lcid., No. 29, 86 



(1916),— Boliv, 

 isabellina, Mcz in Fedde, Repert. xvi. 66 (1919), — Peruv. 

 Meziana, Wittm. in Medcd. Hcrb. Lcid., No. 29, 85 



(1916),— Holiv. 

 nana, Wittm. I. c. — Boliv. 

 olivacea, Wittin. I. c. 83. — Bollv. 

 reflexirtora, Mcz in Fcdde, Rcpert. xvi, 66 (1919), — 



Peruv. 



PYCNANTHEMUM, Michx. (Labiat.). 



decurrens, Blaiico, Fl. Filip. ed, 2, 333 (1845).— Lis. 

 Philipp, 



PYCNAlSrTHUS, Warl), (Myrislicac). 



centralis, A. Chcval. Sttdaitia, i, 8'9, No. 6009 (1911), 

 nomen,— Afr. trop, 



PYCNOCOMA, Benth. (luiphorbiac). 



Beillci, .1. Chcval. E.xpl. Bot. Afr. Occ Fraiif. i. 582 



(1920), nomen, — (juinea (Cote d'Ivoire). 

 lucida, Pax if K Hoffiii. in Eiigl. Pflanzcnr. Euphorb. 



Mcrcurial. 56 (1914), — Camcroons. 



PYCNOPHYLLOPSIS, Skottsb, in Svensk. Vet,- 

 Akad, llandl, n.s. Ivi. No. 5, 216 (1916). CARYO- 

 PHYLLACEAE. 

 muscosa, Skottsb. I. c. 127, 216.— Patag. 



PYCNOSPHACE, Kydb. Fl.Rocky Mts. 747 (1917). 

 LABIATAE. 



Columbariae, Rydb, I. c. : Salvia Columbariae. 



PYCNOSTACHYS, Ilook. (Labiat.). 



Erici-Kosenii, R. E. Frics, Wiss. Ergcbit. Scliwed. 

 Rhod.-Koiigo-Expcd. 1911-12, i. 281 (1916).— Congo 

 Belg. 



PYCREUS, Beauv. (Cyperac). 



AUeizettei, Chcriit. iit Bitll. Mus. Hist. Nat. Paris, 



1919, xxv. 140.— Madag. 

 antsirabensis, Cherm. I. c 138, — Madng, 

 baoulensis, A. Cheval. Expl. Bot. Afr. Occ. Fiang. i. 



695 (1920), nomen. — Guinea (Cote dTvoire). 

 Commersonii, Cherm. iit Aitit. Mtts. Col. Marseille, 



1919, Ser. III. vii. 11. 69 : Cyperus Commersonii. 

 djalonis, A. Chcval. E.xpl. Bot. Afr. Occ. Fraiif. i. 696 



(1920), nomen. — Guinea Gall. 

 gracillimus, Cltiov. in Aitn. Bot., Roma, xiii. 58 



(1914).— Congo Bclg. 

 holosericeus, Mcrrill iit Philipp. Jottrit. Sc, Bot. 1917, 



xii, 231. — Ins, Philipp. (Luzon). 

 hyalinus, Doiniit iit Bibliotlt. Bot. Ixxxv. 417 (1916), in 



obs. : Cyperus hyalinus. 

 pumilus, Doiiiiit, l. c : Cyperns puniilus. 

 setiformis, Nakai iit Bot.Mag., Tokyo, 1912, xxvi, 201: 



Cyperus setiformis. 

 simulans, Chcrm. in Bttll. Mtis. Hist. Nat. Paris, 1919, 



XXV. 139,— Madag. 

 squarrosulus, Cherm, I. c. 137, — Madag. 

 unioloides, Domin in Biblioth. Bot. Ixxxv. 417 (1915) : 



Cyperus unioloides. 

 vavavatensis, Cheim. in Bttll. Mits, Hist. Nat. Paris, 



1919, XXV, 138,— Madag, 



PYGEUM, Gaertn. (Rosac), 



coriifolium, Ridley in Jottrn. As, Soc. Straits, Ixxv. 30 



(1917). — Penins. Mal. 

 ellipticum, Merrill iit Jottin. As. Soc. Straits, Ixxvi. 83 



(1917).— Borneo. 

 pachyphyllum, Merrill, I. c. 82. — Borneo. 

 Parreauanuni, Picrre e.x Cardot iit Lccomtc, Not. Sysl. 



iii. 381 (1918),— Camljodia, 

 parvifolium, Kochne in Engl. Jahib. li. 179 (1913) : 



P. Wightianum, var. parvifolium, Thwaitcs. 

 sessiliflorum. Cardot iit Lccomte, Not. Syst. iii, 381 



(1918),— Cambodia, 

 sisparense, Gamble in Kew BiiII. 1918, 238, — Ind. or, 



(Madras). 

 Topengii, Merrill iit Philipp. Joitin. Sc 1919, xv, 237. 



— China (KwangtungV 



PYWAERTIODENDRON", De Wild. in BuII. Jard. 

 Bot. Brux. v. 19 (1915). LEGUMINOSAE. 

 congolanum, Dc Wild. I. c. — Congo Belg. 



Z 



