GENERAL INDEX 



621 



Pipturus, 356 



Pisonia, 61, 333, 346, 357, 5 68 



Pistia, 435, 486-9 



Pitcairn Island, 64, 345, 355, 418, 



562 



Pittosporum, 308, 309, 313, 509, 532 

 Platydesma, 263 

 Plantago ; on tropical mountains, 269, 



270 ; Hawaiian species, 271-2 ; 



mode of dispersal, 276 : seed- 



mucosity, 276, 568 ; seed-buoyancy, 



537, 540 



Plantago coronopus, 33 

 Plantago lanceolata, 276, 537, 568 

 Plantago major, 276, 537, 568 

 Plantago maritima, 34, 478, 537, 541, 



568 



Plantago media, 537 

 Plectronia, 355, 533 

 Plectrophanes nivalis (Snow-bunting), 



as seed-disperser, 510, 511, 605 

 Pleiosmilax, 371-3, 532 

 Plerandra, 265 

 Plum-stones in beach-drift, 429, 431, 



479 



Poa ; Hawaiian species, 272, 275 

 Poa aquatica, 538 

 Poa fluitans, 538 

 Podocarpus, 294, 297-8, 301, 306, 508, 



603 



Polycarpon tetraphyllum, 33 

 Polygala vulgaris, 536 

 Polygonum ; dispersal by birds, 356 ; 



buoyancy of fruits, 537, 543 

 Polygonum amphibium, 537 

 Polygonum aviculare, 356, 537 

 Polygonum convolvulus, 356, 537 

 Polygonum glabrum, 354, 356, 435, 



487-8 



Polygonum hydropiper, 37, 537 

 Polygonum lapathifolium, 537 

 Polygonum maritimum, 35, 477, 537, 



543 



Polygonum persicaria, 356, 537 



Polygonum viviparum, 512 



Polymorphous species, discussed, 

 33-4, 353, 357-8, 373, 381, 391, 519, 

 520, 522 ; independent of insular 

 conditions, 363, 368, 520 ; noted 

 under Elaeocarpus, 335 ; Dodonsea, 

 339 ; Metrosideros, 341 ; Alyxia, 

 345 ; Alphitonia, 346 ; Pisonia, 346 ; 

 Wikstroemia, 348 ; Sicyos, 363, 365 ; 

 Naias, 368 ; Eurya, 372 ; Maba, 

 372 ; Grewia, 382 ; Nelitris, 382 ; 

 Melastoma, 382 ; Loranthus, 383 ; 

 Geniostoma, 384 ; Macaranga, 384 ; 

 Tabernaemontana, 385 ; Bischoffia, 

 386 ; Micromelum, 393 ; Limnan- 



themum, 396 ; Weinmannia, 291 ; 



Vaccinium, 280-1 

 Polynesians ; their differentiation, 



325, 411, 427 



Polynesian food-plants, 412-4, 427 

 Polynesian weeds, 415, 427, 604 

 Polynesian plant-names, 66, 324, 328, 



34i, 345, 387, 398, 4H, 419, 42i, 

 424, 425, 441, 578 



Polypodium, 593 



Pongamia glabra, 54, 106, 202, 529, 

 551, 563, 581 



Pontederia, 435, 486-9 



Porphyrio (Purple Water-hen), as 

 concerned in plant-dispersal, 296, 

 305, 32i, 331 



Portulaca, 532, 552, 553-5 



Potamogeton, 5, 30, 38, 369, 513, 537 



Potentilla ; buoyancy and station, 27 



Potentilla comarum, 27, 536 



Potentilla tormentilla, 27, 536 



Premna ; the genus in the Pacific, 

 560 ; buoyancy and station, 19, 

 J 34, J 39; cause of buoyancy of the 

 fruits of the coast species, 107, 112, 

 123, 124, 530, 532, 561, 569 ; inland 

 extension of the coast species, 42, 

 547, 548, 561, 569 ; distribution of 

 the species, 561, 563 ; occurrence of 

 the fruits in river-drift, 112, 435, 561 ; 

 modes of dispersal, 561 



Prioria copaifera, in Panama beach 

 and river-drift, 499 



Pritchardia, 124, 308, 309, 326, 53 2 , 

 533-4, 554-5 



Prosopis dulcis, 557 



Prunella vulgaris, 28, 417, 537, 568 



Pseudomorus, 371 



Psittacirostra, 321, 505 



Psychotria, 308-9, 314, 331, 39*, 532 

 603 



Pteris aquilina, 225, 548 



Pteropidas : see Bats 



Pterotropia, 262-3, 595 



Ptilotus, 263 



Ptychosperma, 389, 532 



Puerto Bolivar (Ecuador) ; sojourn of 

 the author, 476, 484-8, 494 



Pumice in beach-drift, 429, 558, 60 1 



Puna Island (Ecuador), 489, 494 



Puna coast (Hawaii), 553 



QUERCUS, 6 1, 90, 126, 429, 431, 537 

 538, 571 



RADIOLA MILLEGRANA, 417, 418 

 Raiatea, 250, 252, 257 

 Raillardella, 237 

 Raillardia, 236-8, 240, 243-4 



