604 



Index 



Oxybaphus nyctagineus, 543 

 Pachyphyllum araucarinum, 257; rigi- 

 dum, 257 



Pagiophyllum, 257 



Pandanus glauciphyllus, 64, 74; 



polycephalus, 65 

 Pandorina, 241, 246; Morum, 246 

 Panicularia acutiflora, 197; americana, 



196; canadensis, 196; fluitans, 196; 



nervata, 196; pallida, 196; septen- 



trionalis, 196 



Peridermium, 25, 506 ; germinale, 506 

 Periodicity in certain ponds and 



streams, Algal, 223 

 Peronospora, 363, 364 ; Alsinearum, 



543; alta, 552; arborescens, 363, 364, 

 551 ; Arenariae macrospora, 543 ; 

 Arthurii, 551; calotheca, 553; Can- 

 dida, 552; Claytoniae, 552; Cory- 

 dalis, 363, 364, 550, 551; Cyno- 

 glossi, ^ 545 ; Cyparissiae, 363 ; 

 Dipsaci, 550 ; dubia, 364 ; Echino- 

 spermi, 545 ; effusa, 548 ; Euphor- 

 biae, 363, 550 ; Ficariae, 552 ; 

 Floerkeae, 364, 551 ; Giliae, 552 ; 

 grisea, 553; Hedeomae, 551; Hydro- 

 phylli, 551; Hyoscyami, 364; lepto- 

 sperma, 546; Linariae, 553; Lini, 

 551 ; Lophanthi, 551 ; Myosotidis, 

 545 ; Nicotianae, 364, 365, 553 ; Oxy- 

 baphi, 543 ; parasitica, 545, 546 ; 

 phloginia, 552 ; Plantaginis, 552 ; 

 Polygoni, 363, 552; Potentillae, 552, 

 553; Rumicis, 363; Rubi, 553; 

 Schleideni, 543; Seymourii, 553; 

 sordida, 553 ; sparsa, 553 ; trichomata, 

 544 ; Trifoliorum, 550 ; Urticae, 553 ; 

 Viciae, 550; Violae, 554; Whippleae, 

 553 



Peronosporales, North American, 361, 

 543 



Petrophytum, 538, 540, 541 ; caespi- 

 tosum, 541 ; elatior, 541 



Peziza, 529 



Phalaris canadensis, 194; arundinacea 

 picta, 194 



Phanerophlebia, 27 

 Pharbitis bracteata, 99 



Pharus parvifolius, 301 ; glaber, 302 



Phaseolus lunatus, 550 



Phegopteris, 28 



Phellorina, 294 



Philippine Polyporaceae, 391 



Philotria, 457; angustifolia, 460-465; 



canadensis, 458, 459, 464, 465; 



linearis, 464, 465; minor, 462, 464, 



465; Nuttallii, 461, 464, 465; Plan- 



chonii, 462, 464, 465 

 Philotria Raf., Notes on, 457 

 Phleum pratense, 191 

 Phlox divaricata, 552 



Phormidium incrustatum cataractorum,. 

 248 ; tenue, 248 



Phragmicoma, 161; affixa, 382, 383; 

 aulacophora, 161 ; bicolor, 159, chi- 

 nantlana, 160 ; polycarpa, 162 



Phragmidium Libocedri, 509 



Phragmites Phragmites, 195 



Phyllachora pomigena, 427 



Phyllitis, 28 



Phymatodes, 28 



Physarum contextum, 578 



Physocarpa, 535 



Physocarpon, 535 



Physocarpum, 535 



Physocarpus, 535; michiganensis, 536; 



missouriensis, 536 

 Phytolacca decandra, 350 

 Phytophthora Cactorum, 553 ; 



tans, 553; Phaseoli, 550; Thalictri,. 



363, 552 

 Pilocereus divaricatus, 565 



Pilularia globulifera, 20 

 Pinus caribaea, 206 ; insularis, 392, 

 405, 410; Pumilio, 57; rigida, 55. 



57 ; sylvestris, 57 

 Piper, 566, 567; peltatum, 556, 5^7 J 

 peltatum hirtellum, 566 ; umbellatunv 



, 566 . 

 Pisonia longirostris, 65 



Pistacia Simaruba, 341 



Pisum sativum, 550 



Placoheppia, 300 



Plantago aristata, 552; lanceolata, 552; 

 major, 352, 552; patagonica aristata,. 

 552; Rugelii, 352, 552; virginica, 



infes- 



552 



and 



Plants of Nantucket, The ferns 



flowering, 49, 181, 471 

 Plants, Studies of West Indian, 337r 



56i 

 Plants, The water-storing tubers or, 



271 

 Plasmopara pygmaea, 552 

 Platanus, 575 



Platycrinus hemisphericus, 572 

 Platylejeunea, 174, *75 ; Kroneana, 



387, 388 

 Pleonectria, 528, 530 ; berohnensis, 53<> 



Pleurocarpus mirabilis, 232, 244 



Pleurococcus, 246 ; vulgaris, 246 



Poa, 358; annua, 196; compressa, 190 j 



fasciculata, 197; pratensis, i9 6 ? 



serotina, 196; trivialis, 196, 475 



Podisoma wmnnsnnranffium claVipCS, 



gymnosporangium 



506 



Podocarpus Blumei, 63; latifolia, 63 

 Podozamites acutus, 257 J lanceolatus 



257 

 Poecilopteris crenata, 33 



Polyalthia, 68; clusiflora, 68 



Polygala verticillata, 352 



