INDEX. 



271 



Phyllosticta Petunias, 61 



Phillyrete, 184 

 phillyrina, 184 

 piricola, 123 



pirina, 123 



Podophylli, 16 



primulsecola, 53 



,, prunicola, 131 



Pyrorum, 110 



Ehamni, 188 

 ,, rhamnigena, 188 

 Khododendri, 177 

 rhododendricola, 177 



ribicola, 144 



Koumeguerii, 181 



ruscicola, 185 



Saccardoi, 177 



,, sanguinea, 185 



sidsecola, 192 



Stephanotidis, 168 



syriaca, 192 



,, Syringte, 191 



syringicola, 192 

 tenerrima, 30 



tinea, 181 



tineola, 181 



Trollii, 13 

 Tropaeoli, 41 

 Violas, 23 

 Vitalba, 21 



,, viticola, Sacc., 153 

 viticola, B. & C., 153 

 Vitis, 153 



Phytophthora infestans, 93, 97 

 ,, omnivora, 212 



Phaseoli, 249 

 Piggotia astroidea, 205 

 Pine branch twist, 225 

 cluster-cups, 224 

 leaf-cast, 227 

 ,, Witches' Broom, 224 

 Pink mould on Deutzia, 193 

 Pinks, disease of, 29, 30, 31 

 Pinus Pinea, 224 



sylvestris, 224 

 Plane leaf anthracnose, 203 

 nerve anthracnose, 203 

 spot, 204 

 Plasmodiophora Alni, 217 



Brassicas, 83, 244 



californica, 161 



Vitis, 159 



Plasmopara cubensis, 101 

 nivea, 90 

 pygmaea, 13 

 viticola, 159 

 Ploeospora Kentiae, 176 

 Plowrightia morbosa, 131 

 Plum, American black knot, 131 

 black mould, 125 

 gummosis, 125 

 leaf-blotch, 127 



shot -hole fungus, 131 

 pockets, 126 

 powdery mildew, 125 

 tree mildew, 127 

 pustule, 113 

 rust, 126 

 Poa, bunt on, 239 



Poa, grass rust, 239, 241 

 Podisoma foliicola, 197 

 Podophyllum peltatum, 16 

 Podosphaera clandestina, 195 

 Oxyacanthae, 194 



tridactyla, 127 



Polyactis cana, 64 

 Polypore, currant, 146 

 gooseberry, 146 

 on larch, 227 

 oak, 210 

 Scotch fir, 227 

 tinder, 142 

 on Weymouth pine, 227 

 Polyporus betulinus, 214 

 dryadeus, 210 

 hispidus, 206 

 Schweinitzii, 227 

 sulfureus, 208 

 Polystigma rubra, 127 

 Polystigmina, 127 

 Polythrincium Trifolii, 247 

 Poplar leaf anthracnose, 218 

 blister, 220 



spot, 218 

 Lombardy disease, 220 

 mealy mildew, 223 

 rust, black, 220 

 white, 219 

 sulphury wood-rot, 208 

 Poppy rot-mould, 22 

 Populus alba, 218, 219, 220 

 balsamifera, 220 

 italica, 218, 220 

 nigra, 218, 220 

 tremula, 219, 220 

 Potash permanganate, 254 

 Potassium sulphide, 254 

 Potato, American scab, 92 

 bacteriosis, 95 

 black ring, 95 

 collar rot, 95 

 disease, 93 

 hyacinth bacillus on, 70 

 leaf-curl, 95 

 Macrosporium, 95 

 Peziza, 94 

 Khizoctonia, 94 

 rot-mould, 93, 97 

 scab, 92 

 sclerote, 94 

 spindle-mould, 91 

 spot-mould, 95 

 tumour, 92 

 Powder, David's, 254 



fungicides, 254 

 Powdery maize smut, 236 



mildew, buckthorn, 189 

 hawthorn, 194 



honeysuckle, 50 



plum and sloe, 125 



vine, 157 



Primrose cluster-cups, 54 



,, evening, leaf-spot, 46 



parasites, 53 



rot-mould, 57 



rust, 55 



simple brand, 55 



,, smut, 54 



