348 
Polypogon erinitus 173 
—  ıimberbis 173 
- monspeliensis II, 85, 143 
Polyporandra 457 
Polyscias 253 
— polybotrya 253 
Polystachya 100, 105, 222, 226 
—- Fischeri 222 
— luteola 222 
— mad, 2G, 22 
Polystichum N. A. 33 
acrostichoides 26 
— f. crispata 29, 30 
aculeatum II, 19 
— var. gracillimum 30 
— oreopteris 23 
Polystrietiaceae II, 22 
Polythrineium trifolii 704 
Polytrema 117 
Polytrichaceae II, 22 
Polyxena haemanthoides Daker 
Pomaderris 101 
— Edgerleyi 488 
Pomatocalpa 228 
Pontederiaceae 236, 237 
Popowia 250 
Popelıs Dill, SI, SIG, Sir; & 
585 
- alba 517 
angulata 515 
arızonica 517 
canadensis 511, 515 
deltoides 515 
euphratica 517 
Fremontii 517 
lasiocarpa 59 
mexicana 517 
monilifera 511, 513, 515 
nigra 64 
— var. italica 697 
nigra X deltoides 515 
serotina II, 158 
- tremula II, 68 
trichocarpa 515 
— yunnanensis 512 
Porana 333, 334 
— sichota-alinensis 588 
— Speirii 588 
Porella navicularis 629 
— platyphylla 662 
204 
Polypogon erinitus—Potentilla canescens 
Porina N. A. 10 
sect. Sagediastrella 10 
sect. Sagediastrum 10 
sect. Sagedinula 10 
sect. Segestria 11 
Porlieria 562 
Porotrichum angustifolium II, 144 
Poroxyleae 599 
Porphyra linearis II, 14 
Portlandia 507 
— Ghiesbreghtiana 507 
ı — pendula 507 
ı Portulaca 103, 126, 476 
ı — grandiflora 476 
 — oleracea grandiflora 476 
ı — quadrifida 476 
Portulacaceae 476, 477 
Posidonia australis 237 
Potamogeton 67, 68, 237. — II, 149 
acutifolius II, 58 
acutifolius X pusillus II, 142 
alpinus II, 149 
coloratus II, 55 
densus II, 68 
filiformis II, 94 
gramineus II, 149 
juneifolius II, 
nitens II, 32 
obtusifolius II, 149 
panormitanus II, 149 
perfoliatus 237. — II, 149 
pusillus II, 149 | 
sudermanicus 237. — II, 142 
trichoides II, 97 
Potamogetonaceae 130, 237 
Potamophila 192 
Potentilla 109, 115, 120, 128, 495, 496, 
688 
alba 491 
anserina 491. — II, 16 
apennina II, 118 
arenarlia II, 67 
arenaria X patula II, 101 
argentea 491, 495. — 11, 179 
— subsp. cinerea 495 
— subsp. vulgaris 495 
aurea 491. — IM, 129 
bifurca II, 36 
Budaiana Javorka* II, 101 
canescens II, 67 
