302d Wisconsin Academy of Sciences, Arts and Letters, 
Plasmopara cephalophora, 267 
Plasmopara cuhensis, 260, 295 
Plasmopara geranii, 266 
Plasmopara halstedii, 267 
Plasmopara humuli, 266 
Plasmopara Ulinoensis, 280 
Plasmopara Tcellermani, 287 
Plasmopara ohducens, 251, 266 
Plasmopara pygmaea, 266, 271 
Plasmopara ribicola, 266 
Plasmopara viburni, 267 
Plasmopara viticola, 267 
Pleosphaerulina briosiana, 295 
Poa annua, 277, 279 
Poa pratensis, 278, 292 
Polygonum Persicaria, 279 
Populus balsamifera, 277 
Populus grandidentata, 257 
Populus tremuloides, 253, 257 
Potentilla anserina, 278 
Prenanthes, 289 
Prenanthes alba, 264, 289 
Protomyces andinus, 269 
Prunus americana, 261 
Prunus nigra, 294 
Prunus pennsylvanica, 280 
Prunus virginiana, 288 
Psedera, 252 
Pseudopeziza singularia, 276 
Puccinia absinthii, 259 
Puccinia agropyri, 259 
Puccinia aletridis, 291 
Puccinia andropogonis, 254 
Puccinia anemones-virginianae, 259 
Puccinia asteris, 277 
Puccinia atropuncta, 275 
Puccina caricis-shepherdiae, 301 
Puccinia cryptotaeniae, 289 
Puccinia gigantispora, 259 
Puccinia graminis, 259, 279, 294 
Puccinia Jcoeleriae, 254 
Puccinia Tcoeleriae-liatridis, 254 
Puccinia liatridis, 254 
Puccinia magnusiana, 254 
Puccinia peridermiospora, 259, 279 
Puccinia polygoni-amphibii, 279 
Puccinia pruni-spinosae, 294 
Puccinia punctiformis, 302 
Puccinia pustulata, 254 
Puccinia simillima, 254 
Puccinia troglodytes, 302 
Puccinia tumidipes, 302 
Puccinia zygadeni, 275 
Pucciniastrum arcticum americanum, 254, 
255 
Pucciniastrum myrtilli, 279 
Pyrola elliptica, 281 
Pyrus ioensis, 257 
Pyrus melanocarpa, 293 
Quercus bicolor, 256, 284, 292 
Radicula palustris, 294 
Radicula sylvestris, 294 
Ramularia asteris, 257, 293 
Ramularia canadensis, 298 
Ramularia celtidis, 285 
Ramularia desmodii, 274 
Ramularia dispar, 278 
Ramularia effusa, 278 
Ramularia fraxinea, 278 
Ramularia lysimackiae, 257 
Ramularia occidentalis, 293 
Ramularia pratensis, 293 
Ramularia repens, 289, 293 
Ramularia tanaceti, 285 
Ramularia tenuis, 261 
Ramularia uredinis, 278, 293 
Ramularia variata, 289 
Ramularia virgaureae, 257, 258, 259, 278 
Ranunculus recurvatus, 276, 279, 280 
Ranunculus septentrionalis, 276, 277, 279, 
280 
Rhus Toxicodendron, 283 
Rhytisma lineare, 252 
Ribes lacustre, 292, 293 
Ribes oxyacanthoides, 256 
Ribes prostratum, 266 
Ribes triste, 266 
Rubus allegheniensis, 251, 256, 282, 293 
Rubus canadensis, 257 
Rubus hispidus, 257, 264 
Rubus idaeus aculeatissimus, 254 
Rubus occidentalis, 254, 255, 293 
Rubus triflorus, 254, 255, 263 
Rubus villosus, 264 
Rudbeckia, 289 
Rudbeckia laciniata, 264 
Rumex altissimus, 301 
Rumex verticillatus, 293 
Salix alba vitellina, 256 
Salix amygdaloides, 278 
Salix longifolia, 296 
Salix lucida, 257, 277, 297 
Salix nigra, 293 
Schizonella melanogramma, 259 
Scirpus atrovirens, 263, 272 
Sclerospora graminicola, 269 
Sclerotiopsis concava, 296 
Sclerotium deciduum, 259 
Sederotium globuliferum, 295 
Scolecotrichum graminis, 278 
Scrophularia leporella, 256 
Secale cereale, 293 
Septocylindrium caricinum, 253 
Septocylindrium concomitans, 278 
Septogloeum ampelopsidis, 252 
Septogloeum convolvuli, 261 
Septogloeum querceum, 283 
Septogloeum subnudum, 297 
Septoria acerella, 282 
Septoria ampelopsidis, 252 
