281 



Diseases of Farm and Garden Crops 

 (Review), 40; Plants in Health and 

 Disease (Review), 271 



Omplialia, 190 



Onoclea sensil)ilis fossilis, 201 



Oplismcniis comiiositus, 93 



Opulastcr opiilifolia, 254 



Opuntia grandillora, 130 



Ortliotrichum anonialuin, 66; K4, i jo, 

 112, 114; stranKulatum, 64, 84, no, 

 114 



Orton, C. R., 247 



Orton, W. A., 52 



Osbeckia rubicunda, 44; sp., 39; Wal- 

 keri, 41 



Osmunda cinnamomea, 236 



Osterhout, G. E., Is Carduus undulatus 

 Nutt. found in Colorado?, 204; A 

 New Phacelia from Colorado — Pha- 

 celia denticulata sp. nov., 70 



Ostrya virginica, 255 



Otis, C. H., 248 



Overholts, L. O., A Re-description of 

 Tricholoma praemagnum, a Fairy- 

 ring Mushroom, 197 



Oxytropis, 156 



Panaeolus, 208 



Pan American Scientific Congress, The, 



123 

 Panicum gibbum, 269; patens, 93 

 Parish, S. B., 247 

 Parker, M. A., 188 

 Parthenium argentatum, 45; incanum, 



46; Lloydii, 46 

 Parthenium Lloydii, a New Mexican 



Guayule, 45 

 Paspalum boscianum, 236 

 Pavetta involucrata, 44 

 Pearl, R., 78 

 Peck, C. H., 29 

 Pedicularis canadensis, 253 

 Peridermium cerebrum, 272 

 Pestalozzia palmarum, 188 

 Peucedanum, 157 

 Phacelia denticulata, 70; glandulosa, 70; 



Neo-Mexicana, 70 

 Phascum, cuspidatum, 63, 66, 84, iio- 



114 

 Philonotis fontana, 65, 84, no, 112, 114 

 Phlox tenuis, 130 

 Pholia nutans, 63 

 Physcomitrium turbinatum, 64, 67, 84, 



III, 114 

 Piaropus, 269, 270; crassipes, 269 

 Piaropus crassipes in Leon County, 



Florida, 267 

 Piatt, H. S., 271 

 Picea rubra, 236 

 Pinus contorta, 259; monticola, 259; 



palustris, 184; rixida, 255; strobus, 92; 

 taeda, 236; virginiana, 236 



Piper and Beattie's Flora of the North- 

 west Coast (Review), 143 



Piper interruptum, 94 



Pithecolobium sarnan, 14 



Pittonia, ISS. i^'4 



Plagiothecium, 87, 89, 109, 113; denti- 

 culatum, 109, 111-114; striatellum, 

 90, 109, III, 114; sylvaticum, 109, 

 III, 112, 114 



Plant Diseases in the Philippines, 188 



Plants in Health and Disease (Review), 

 271 



Plant World, 30, 142 



Plantago decipicns, 239 



Pleuridium alternifolium, 49 



Pogonatum brevicaule, 64, 66, 84, in, 

 112, 114 I 



Pohlia nutans, 84, no,. in, 114 



Poisonous Plants of Eastern United 

 States, 123 



Polk, L. A., 234 



Polycodium stamineum, 254 



Polygala incarnata, 130 



Polygonum hydropiperoides, 269; persi- 

 caria, 235, 237 



Polyporus admirabilis, 74, 139; albiceps, 

 140; elegans, 140; melanopus, 140; 

 picipes, 140; Underwoodii, 140; vari- 

 us, 140 



Polytrichum commune, 64, 66, no-114; 

 ohioense, 64, 85, no, in, 114 



Pontederia cordata, 237 



Pool, E. J., 192 



Populusalba, 115; tremuloides, 237 



Porto Rican Rusts, 208 



Porto Rican Sedges, 75 



Potamogeton, 201 



Pottia, 84; truncatula, 64, 85, no, 114 



Povah, A. H., 176 



Preliminary Report of Upper St. Regis 

 Fungi, 75 



Principles of Plant Culture, The (Re- 

 view), 186 



Proceedings of the Club, 73, 95, 122, 

 148, 187, 207, 271 



Prunella vulgaris, 239 



Prunulus, 190 



Prunus alleghaniensis, 18-23, gracilis, 

 238; Gravesii, 18-22, 26; maritima, 

 26; serotina, 255, 256 



Pseudotsuga taxifolia, 257 



Pteris aquilina, 41 



Ptychomitrium, 85; incurvum, 85, no- 

 114 



Pulling, H. E., 191 



Pylaisia Schimperi, 88, 109, 111-114 



Pyrola chlorantha, 24; oxypetala. 18, 

 21, 24; rotundifolia, 253 



