INDEX. 9ol 



app. III, 56; X intormedium app. I, 3, 5, 18; lapathifolium 649, app. III, 36; 

 maritimuni 220, 298; minori-dubium app. I, 3, 5, 18; minus app. I, 18; 

 app. III, 36; nodosum app. II, 153; Persicaria app. II, 133; plebejum app. III, 

 56; Roxburghii app. III, 56; senegalense app. II, 156 ; serrulatum app. Il, 155, 

 app. III, 56; setosulum app. II, 155. — Polymnia maculata 176. — Polypodium 

 aspidiolepis 661 ; celebicum 660 ; costaricense 660, 661 ; cyclocolpon 659, 660 ; 

 Engleri 674; ensatum 673; europaeum 553; Fauriei 672; Filix mas 553; flagel- 

 lare 660; fraxinifolium 660; bastatum 673, 674; beterocarpon 673; birtellum 

 662; jungerraannioides 662; lineare 672, 673; myriolepis 661, 662; organense 

 662; ovalum 673; pectinatum 660; rosulatum 662; simplex673; superficiale 

 673; thyssanolepis v. bipinnatißdum 661; vulgare 553, 672. — Polypogon 

 maritimus 221, 222, 285, 287, 291, 295, 300, 309 ; monspeliensis 221, 222, 285, 

 287, 290, app. III, 20; subspathaceus 222, 293, 300. — Polyporus cingulatus 

 app. III, 3; demissus app. III, 5. — Polystichum Filix mas 353; spinulo.sum 

 533. — Polystictus funalis app. III, 5; velutinus 169. — Polytrichum com- 

 mune 606; decipiens 5; formosum 6; juniperinum 606; juniperinum v. alpinum 

 701; obioense5; sexangulare 701. — Populus alba 70; tremula 70; Tremula 

 V. Freyni app. I, 3, 6, 18, 19. — Porina Tetracerse 170. — Porophyllum ellip- 

 ticuni 176. — Portulaca Erythrœœ app. II, 171 ; foliosa app. II, 171; imbricata 

 app. II, 171; linifolia app. II, 171; oleracea app. II, 170, 172; quadrifida 

 app. II, 171 ; quadrifida v. grandifolia app. II, 171. — Posidonia Caulini 215. 

 — Potamogeton aculifolius 545; capensis 547; crispus 546, 548; cristatus 545, 

 546; filiformis 547; flabellatus 546, 547; Gaudicbaudii 545, 548; gracilis 546, 

 347 ; gramineus v. raongolicus 546; beteropbyllus 547; beteropbyllus v. mongo- 

 liens 547 ; indicuus 546, 547, 348 ; japonicus 346 ; javanicus 545, 546, app. III, 

 9; lateralis 545; marinus 215; Miduhikimo 545, 548; mucronatus 548; natans 

 221, 546, 547, 548; nipponicus 545, 547; Oxyphyllus 545, 547, 548; pectinatus 

 546, 547, app. IIl, 9 ; perfoliatus 546, 548 ; perfoliatus v. cordato-lanceolatus 548 ; 

 polygonifolius 546; prselongus 545, 348; pusillus 546; pusillus v. brevifolius 

 547 ; Robbinsi v. japonicus 546, 549 ; subflavus app. I, 3, 7 ; Tepperi 545, 548 ; 

 zosterifolius 545, 547. — Potentilla alba app. I, 2, 5; anserina 726 ; aurea 131; 

 Baldensis 131; caulescens app. I, 2, 3; dubia 131; fagineicola app. I, 3, 3; 

 grandiflora 131 ; incana app. I, 2, 5 ; micrantha 151 ; minima 151 ; opaca 151 ; 

 pedata 151; polytricha app. I, 3, 5; reptans app. II, 205; Salisburgensis 151; 

 saxifraga app. I, 2, 5; verna 151; villosa v. minor 131. — Poterium agrimo- 

 noides 222. — Pottia latifolia 700, 701. — Pouzolsia abyssinica app. II, 147; 

 Erythrœœ app. II, 146, 147; mixta app. II, 146; parasitica app. II, 145; 

 pauciflora app. II, 146 ; procridioides app. II, 145. — Prasium majus 35. — 

 Primula algida 142, 143; algida v. colorata 143; Auricula 158; auriculata 142 ; 

 elatior 158; farinosa 142, 143; birsuta 158; Hookeri 142, 143; integrifolia 158; 

 intricata 158; latifolia 701, 708; longipes 141; Muretiana 701; nivalis 142; 

 ofiicinalis X grandiflora app. I, 2, 6; X variabilis app. I, 2, 6; viscosa 158; 

 villosa 701. — Prosopis spicigera app. II, 218. — Protea abyssinica app. II, 



