454 
INDEX TO SEAWEEDS 
PEY-SSONNELIA 
PHACELOCARPUS .. .. 
PHITYMOPHORA .. .. 
PHYLLOSPORA 
pilifera, Corallina 
pinnatifida, Amansia . . 
pinnella, Gattya 
plagiogramma, Haliseris . . 
plana, Halymenia 
PLATYCLINIA 
platylobium, Cystophora . . 
PLEONOSPORIUM .... 
PLOCAMIUM 
plumigera, Dasya 
plumigera, Lasiothalia . . . 
plumigerum, Callithamnion 
plumosa, Bryopsis 
plumosa, Struvea 
plumosa, Wrangelia . . 
plumula, Antithamnion . . . 
POLLEXFENIA 
polyclada, Dictyota 
POLY COELIA 
polycoelioides, Meredithia . 
polycystidea, Cystophora . . 
polymorplia, Hymenocladia 
POLYOPES . 
polypodioides, Haliseris . . 
POLYSIPHONIA 
POLYZONIA . . 
pomoides, Codium 
PORPHYRA 
potatorum, Sareophycus . . 
Preissianum, Plocamium . . 
Preissii, Dasyphila 
Preissii, Haloplegma . . 
princeps, Wrangelia 
PRIONITIS 
pristoideum, Nitophyllum . 
procerum, Plocamium . . . . 
prolifera, Grateloupia . . . 
prolifera, Lenormandia . . 
prolifera, Osmundaria . . . . 
prolifera, Spyridia 
proliferum, Polyphacum . . 
proliferum, Thamnoclonium 
prolificans, Rhodymenia . . 
prorepens, Dipterosiphonia 
prorepens, Herposiphonia . . 
prorepens , Polysiphonia . . 
prostrata, Pachymenia . . . 
protensa, Wrangelia 
PROTOKUTZINGIA .... 
PSILOTHALLIA 
PTEROCLADIA 
PTILOCLADIA 
PTILONIA 
PTILOTA 
puberulum, Ceramium . . 
pulchellum, Callithamnion . 
pulchellum, Cheilosporum . . 
pulchra, Delisea . . . 
pulchra, Ptilocladia . 
PUNCTARIA .... 
purpurea, Platyclinia 
pusilla., Mychodea . . 
pusillUm, Ceramium . 
pyrifera, Macrocystis 
Page. 
387 , 424 
178 , 418 , 429 
227 , 230 , 434 
61 , 77 , 415 
400 
296 
359 
89 
376 
.. , . .. 216 , 226 , 434 
71 , 415 
331 , 434 
209 , 429 
320 
357 
357 
33 , 403 
404 
143 
. 352 
277 , 436 
92 , 410 
158 , 161 
162 
74 , 416 
198 
374 , 379 , 425 
89 
117 , 118 , 261 , 262 , 436 
289 , 436 
49 , 53 , 404 
125 , 417 , 419 
82 
211 
342 
336 
143 
374 , 379 , 425 
. . 219 , 222 
214 
376 
302 
299 
362 
299 
381 
201 
292 
293 
276 , 292 , 293 
378 
137 
295 , 436 
342 , 346 , 434 
144 , 422 
349 , 360 , 434 
238 , 239 , 422 
338 , 341 , 434 
367 
333 
397 
241 
360 
102 , 413 
226 
156 
367 
95 , 414 
