INDEX 



623 



Para-nuts, Bertholletia 

 Paraphyses of Funis, 332 ; of the Fungi, 

 343 ; Pyrenomycetes, 355 ; Di,scom,y- 

 cctes, 359 ; Hymenomycetes, 368 

 Parasites, 206 ; reduction of leaves, 25 ; 

 roots, 43 ; influence on formation, 155 

 Parastichies, 39 



Paratonic movements, 249, 270 

 Parenchyma, *78, 89, 102, *106, 115, 



131 

 Paris quadrifolia, 154, 446, *467, 468 

 Parnassia, 251 

 Paronychioideae, 506 

 Parsley, Petroselinnm 



Beaked, Anthriscus 



Bur, Cauccdis 



Fool's, Aethusa 



Hedge, Torilis 

 Parsnips, Pastinaca 



Cow, Meracleum 



Water, Sium 

 Parthenogenesis, 68, 280, 340 

 Partite leaves, 30 

 Passiflora, *525 

 Pastinaca, 549 

 Paullinia, 137 

 Paulownia, 583 

 Pea, cotyledon, *458 

 Peach, Prunus persica 

 Pear, Pirus communis 

 Peetose, 80 

 Pedate leaves, 30 

 Pediastrum, *320 

 Pedicularis, 583 ; haustoria, 260 

 Peireskia, 526 

 Pelargonium, *532 

 Pellia, 389 

 Peloria, 453 

 Penicillium, *353 

 Pennywort, Water, Hydrocotyle 

 Pentacyclic flowers, 451, *452 

 Pepper, Black, Piper nigrum, 503 

 Peppermint, Mentha piperita 

 Pepperwort, Lepidium 

 Pepsine in the protoplasm, 54 

 Peptonising ferments, 83, 203, 205 

 Perennial plants, 27, 239 

 Perfoliate leaves, 30 

 Perianth, 38, *428 

 Periaxial wood, 138 

 Periblem, 150 

 Pericambium, see Pericycle 

 Pericarp, 459 

 Perichaetium, 392 

 Periclinal walls, 149 

 Pericycle, 110, *113 

 Periderm, 139, 140 

 Peridermium, 367 

 Peridineae, 315 

 Peridinium, *315 

 Peridiola, 374 



Peridium of the Uredineae, 365 ; Qnstero- 



mycetes, 373, 375 ; Myxomycetes, 303 

 Perigone, 446 



Perigynous flowers, 450, *451 

 Perinium, 399 ; of the Eqnisetaceae, 248, 



*414 ; of Salrinia, *411 

 Periodicity of development, 237, 238 

 Periods of growth, symbols for, 27 

 Periphyses, 355 

 Periplasm, 346, 399 

 Perisperm, *432 

 Perisporiaceae, 351, 353 

 Perisporieae, 352, 353 

 Peristome, 248, 392 

 Perithecium, 351, 352 

 Periwinkle, Vinca minor 

 Permeability, 166, 167, 177, 178 

 Pernambuco wood, Oaesalpinia 

 Peronosporeae, 344, 346 

 Personatae, 579 

 Peruvian wax-palm, Ceroxylon 

 Petals, 446 . 

 Petasites, 598 

 Petiole, 29 



Petroselinnm, 549, 550 

 Pencedanum, 549 

 Peziza, *358 

 Phacidiaceae, 359 

 Phaeophyceae, 329 

 Phaeosporeae, 331 

 Plmjus, starch, *69, 71 

 Phalarideae, 480 

 Phalloideae, 374 

 Phallus, *374, 375 

 Phanerogamia, 45, 240, 374, 375, 427 ; 



fertilisation, *67 ; sexual generation, 



431 

 Pharbitis, *261 

 Phascaceae, 394 

 Phascum, *384 

 Phaseoloideae, 562 

 Phaseolus, 562 ; coils, 261 ; starch, 68, 



*69 

 Phegopteris, spermatozoid, *67 

 Phelloderm, 141, *142 

 Phellogen, 140, *141, *142 

 Philadelphus, 552 

 Phleum pratense, 480 

 Phloem, see Sieve -tube portion 

 Phloeoterma, 109 

 Phloroglucin, 74, 80 

 Phlox, 577 

 Phoenix, *472 

 Phormium, *170 

 Phosphorescence, 223 

 Phosphorus in plants, 54, 70, 171, 173, 



202 

 Phototactic, see Heliotactic 

 Phragmites, 480 

 Phycocyanin, 58, 306 

 Phycoerythrin, 58, 335 



