350 
Protomegabaria 378 
Protophyceae 606 
Protopityeae 598 
Protosalvinia 607 
— Ravenna 607 
Prumnopitys elegans 133 
Prunellopsis prunelliformis 399 
Prunus 109, 496, 497, 499 
acida 501. — II, 131, 132 
amygdalus 491, 496 
— armeniaca 49] 
avium 491, 494 | 
brigantiaca 498. — II, 204 | 
| 
cerasus 491, 496, 497. — II, 132 | 
depressa 494 
domestica 63, 496, 497 
— subsp. insititia 491 
— subsp. oeconomica 491 
fruticosa 491. — II, 104 
incisa 491 
insititia 496, 497 
— Jaurocerasus II, 123 
monticola C. Koch var. pubescens 
Nabel.* 491 
mutabilis 497 
myrtifolia 496, 693 
oceidentalis 693 
- padus 496, 497, 501. 
— var.typica 491 
persica 491, 496 
Podperae 491 
prostrata II, 189, 190 
pseudoadenopoda 491 
pumila 694 
sachalinensis 497 
serotina 495, 501 
serrulata 497 
spinosa 491, 496, 497. — II, 129, 
150 
susquehanae 494 
- virginiana 96, 495, 499 
eo campestris II, 107 
Psammotropha androsacea 465 
Psaronius 581 
Psedera 119 
— quinquefolia 57 
Pseudabutilon 439 
Pseudagrostistachya africana 372 
Pseudechinolaena polystachya 173 
— II, 154 
Pseudellipanthus Schellenberg N.@. 331 
Protomegabaria—Psilophyton Hedei 
Pseuderanthemum 100 
Pseuderia 227 
 Pseuderucaria 348 
Pseudochimarrhis Ducke N. &. 103 
' Pseudoelappia Rydb. N. 6. 326 
ı Pseudocryptocarya Teschn. N. @. 405 
Pseudolachnostylidinae 379 
 Pseudolachnostylis 379 
 Pseudolarix Fortunei Mayr 133 
' Pseudolmedia 449 
 Pseudopanax crassifolium 253 
 Pseudophoenix 232 
— insignis Cook 231, 232 
— Sargentii 232 
' Pseudopogonatherum 176 
' Pseudopyrenula N. A. 11 
| — sect. Polymeria 11 
ı Pseudorhipsalis Britt. 
et Rose N. 6. 
ld 
— alata 274 
 — himantoclada 274 
' Pseudosmodingium 248 
Pseudosorghum 176 
Pseudospigelia Klett N. @. 431 
 Pseudotsuga 52, 136, 672 
Douglasii 53, 58, 139, 
146 
— f. caesia 137. — II, 31 
— f. viridis 137 
Forrestii 133 
glauca Mayr 133, 146 
japonica Beissn. 133 
macrocarpa Mayr 133 
taxifolia (Lamb.) Britt. 53, 146. — 
JUL, 1182 
— f. caesia 146, 147 
f. viridis 147 
subsp. glaucescens 146 
subsp. mucronata 146 
suberosa 145 
Pseudovossia 177 
— cambogiensis 173 
Psiadia 676 
Psidium 452 
— guajava 452 
Psilochilus macrophyllus 216 
Psilophytales 99, 101, 587 
Psilophytinae 14 
Psilophyton 574 
— Hedei 599 
133, 137, 
