562 REGISTER. 
OVERTON 110. 
OXNER 404, 410. 
PAGENSTECHER 485, 499, 501, 504 v. 
palaeophyllales 438. 
Palaeopitys Milleri 429, 436, 
PALLAS 517. 
Papaver Argemone 465 vv. 
P. dubium 465 vv. 
P. dubium gigas 465 vv.’ 
Parnassia palustris 519. 
PATERSON 487. 
pathologische huidaandoeningen 413. 
PEARL 13, 21, 209, 256, 481 vv. 
PEARSON 1 vv., 207, 237 v., 256. 
PETERS 93, 489, 495, 499, 
Peters, A. 505. 
Peters, R. 505. 
Phaeophyceae 445. 
Phanerogamia 433. 
PHILLIPS 254. 
PHLEPS 93. 
Phragmites communis var. pseudodonax 
133 vy; 
phylogenetisch jongere 168. 
phylogenetisch oudere 168. 
pigmentdegeneratie 414 vv. 
Pisum 175. 
Pityeae 436. 
plasmatische erfelijkheid 78. 
PLATE 492. 
PLATO 83. 
Platypoecilius 78. 
Plesiosauria 451. 
POLICARD 85. 
Por 411, 413. 
PöLLor 502. 
polydactylism 209 v. 
polycorie 64 v. 
polymerietheorie 16, 18, 206 vv., 244. 
polyploide cellen 112. 
polyploide mosrassen 413. 
polyploidie 177. 
pompon-hyacinthen 136. 
Paroxyleae 436. 
POYALEs 506. 
prepareeren van bollen 105, 
prepotentie 535 vv. 
PRILLIEUX 113, 191. 
Primofilicinées 432. 
Primula 411 v., 520 vv., 530, 
P. capitata 520. 
P, farinosa 518, 521, 523, 530. 
P. f. var. littoralis 518 vv. 
P. Kewensis 178. 
P. malacoides 518, 522 v. 
P. obconia 518, 522 vv. 

P. scotica 519 v., 522, 
P. sinensis 518, 520, 523. 
P. stellata 518. 
Procormophyta 428. 
Protopityeae 435. 
Pseudogigas-ras 134. 
Pseudopsorochnus 428. 
Psilophytales 433, 437 v., 441. 
Psilophyton 429 v., 432, 438 v. 
P. Goldschmidtii 432. 
P. princeps 432. 
Psilotales 438. 
Psychiden 79. 
Psygmophyllum 438. 
Pteridophyta 428 v., 432, 440. 
Pteridospermen 432 vv., 441. 
Pteropsida 437 vv. 
ptosis 65 v. 
PUNNETT 210. 
Pyrola rotundifolia 519. 
QUATREFAGES, DE 541. 
RABAUD 510 v. 
Radiolariae 444. 
radiumstralen 114. 
RAGIONIERI 152. 
Rana 409. 
R. temporaria 412. 
Raphanus raphanistrum 510. 
R. sativus 510. 
Rariorum plantarum historia 132, 186. 
rashygiéne 413. 
rassenbiologie 546 vv. 
rats 208 v. 
RAYLEIGH 507. 
reductiedeeling. 105. 
reflex 52. 
regressie 1 vv. 
Reis 506. 
REMICK 17. 
RENGGER 530, 541. 
RENNER 184, 411 v., 449, 464, 473. 
reproductive selection 3. 
retinitis-pigmentosa 414 vv., 502 v. 
retinitis punctata albescens 414 v. 
retractie van het oog 494. 
REYE 511. 
Rhetinangium 434 v. 
Rhododendron 525. 
Rhodophyceae 445, 471. 
Rhynia 427 vv., 440. 
R. Gwynne-Vaughani 429. 
Rhyniaceae 427 vv., 440. 
RıpLey 2, 22, 195, 256. 
ROHRER 94. 
Römische Hyazinthe 170. 
