846 



Mycologia 



Pilocarpon tricholoma, 126 



Finns, 42; chihuahuana, 146; con- 

 torta, 142-144; Jeffreyi, 143; pon- 

 derosa, 141, 143; radiata, 143; 

 rigida, 282; sabiniana, 143; taeda, 

 29, 33, 57, 65 ; virginiana, 26, 33, 

 282, 284 



Pisum sativum, 13 



Pleurage, 116; albicans, 116; lutea, 

 116 



Pleuropus abortivus, 6 ; Earlei, 332 

 Pleurotus, 4, 207, 217; candidissimus, 



215; corticatus, 217; densifolius, 



217; dryinus, 217; geogenius, 3; 



oreg-onensis, 217; ostreatus, 216; 



sapidus, 159, 216; septicus, 215; 



serotinoides, 216; serotinus, 216; 



subareolatus, 217; subsapidus, 



217; subsepticus, 217 

 Plicaria echinospora, 221 

 Plowrightia, 70 



Pluteolus, 72, 74, 244, 246, 247 ; cali- 

 fornicus, 246 ; callistus, 247 ; ex- 

 pansus, 247 ; luteus, 246, 247 ; 

 parvulus, 246 ; stramineus, 246 ; 

 tropicalis, 74 



Pluteus stercorarius, 262 



Podiosoma, 195 



Polemonium, 29; reptans, 10, 12, 28, 

 29, 33 



Polygala Senega, 12, 13 

 Polygonatum commutatum, 1 1 

 Polyporaceae and Boletaceae of the 



Pacific Coast, 91 

 Polyporus carbonarius, 217; Car- 



neus, 109; cutifractus, 217; ele- 



gans, 93; juniperinus, 109, 110; 



oregonensis, 217; perdelicatus, 



217; Pseudotsugae, 217; sensi- 



bilis, 217; substipitatus, 217 

 Polystictus abietinus, 113; versicolor, 



263, 264, 266-270; washington- 



ensis, 217 

 Polystictus versicolor as a wound 



parasite of catalpa, 263 

 Populus, 30, 189; acuminata, 147; 



angustifolia, 147; balsamifera, 147; 



grandidentata, 147, 188, 193; tremu- 



loides, 29, 33, 58, 65, 147; tricho- 



carpa, 147 

 Poria, 113; vaporaria, 223 

 Porodaedalea Pini, 97, 105 

 Preliminary notes on three rots of 



juniper, 109 

 Prolifera group, Achlya DeBaryana 



Humphrey and the, 319 

 Psathyra, 81 

 Psathyrella, 303 



Pseudotsuga, 29, 30, 58, 261, 330; 

 mucronata, 29, 33, 58, 65 ; taxifolia, 

 96 



Psilocybe, 330 



Puccinellia airoides, 54, 64 



Puccinia, 9, 11, 14, 21, 22, 55, 56, 180, 

 181, 194-197, 199, 200, 203, 204; 

 Absinthii, 21, 32; albiperidia, 13 

 (see page 49), 14, 15, 30 (see page 

 49), 49, 180, 193, 200, 201 ; amphi- 

 gena, 18, 31 ; Andropogonis, 7, 17, 

 31; angustata, 7, 17, 31, 54, 64; 

 angustatoides, 203 ; Anthoxanthi, 

 II ; argentata, 20, 32; Caricis, 7, 17, 

 31; Caricis-Asteris, 16, 28, 30, 181, 

 193, 199, 204; Caricis-erigerontis, 

 199; Caricis-Solidaginis, 15, 30, 181, 

 193, 199; cinerea, 54, 64; Crandallii, 

 27, 33; Distichlidis, 11, 202, 204; 

 Eatoniae, 61 ; Eleocharidis, 203 ; 

 Ellisiana, 7, 9, 199, 200, 204; emacu- 

 lata, 7 ; f raxinata, 7 ; Gentianae, 

 203 ; graminis, 39, 107 ; Grossu- 

 lariae, 14; see page 49 for error; 

 heterantha, 203 ; Impatientis, 7 ; 

 Jamesiana, 19, 31 ; Lithospermi, 28, 

 33 ; Lygodesmiae, 58, 65 ; malva- 

 cearum, 329; monoica, 61, 65; 

 montanensis, 1 1 ; Muhlenbergiae, 

 18, 31; opaca, 203; Opizii, 16, 31; 

 Panici, 202; Pammellii, 202-204; 

 Peckii, 7, 15, 30, 54, 64, 181 ; permi- 

 nuta, 9; perplexans, 179, 192; 

 Phragmites, 54, 64; poculiformis, 

 7, 18, 31; pustulata, 7, 17, 31; 

 quadriporula, 28, 33; Rhamni, 11, 

 18, 31; Ruelliae-Bourgaei, 203; 

 Seymouriana, 19, 31 ; Schedon- 

 nardi, 10, 53; Stipae, 19, 31, 59; 

 subnitens, 18, 31, 52, 54-56, 64, 198, 

 204; tosta, 10, 52; Triseti, 59; uni- 

 porula, 201, 204; universalis, 16, 

 31 ; vexans, 7 ; virgata, 10 

 Puccinia and Uromyces, Correlation 



between certain species of, 194 

 Pucciniastrum agrimoniae, 191 ; arc- 

 tium, 190, 191 ; minimvim, 184, 186, 

 193; Myrtilli, 186; pustulatum, 176, 

 177, 192 

 Pulicaria, 23 



Pyrola, 183, 184; americana, 184, 193; 



elliptica, 184, 193 

 Pyropolyporus Earlei, 11 1 ; Everhartii, 



104; igniarius, 97, 104; juniperinus, 



1 10 ; texanus, 112 

 Pyrus communis, 25, 63 

 Pyxine picta, 139 



Quercus Ilex, 172; nigra, 331 ; Prinus, 

 103; rubra, 26, 33, 170, 172, 331 



Ramalina denticulata, 138; linearis, 

 138 ; usneoides, 138 



