196 



Polygonum cilinode, 5 ; emersum, 19 ; 



muhlenbergii, 19; persicaria, 19; 



persicarioides, 137 

 Polypodium virginianum, 118, 144 

 Polyporus caudicinis, 144 

 Polypremum procumbens, 137 

 Polystichum acrostichoides, 143 ; 



braunii, 13, 181 ; munitum, 181 

 Polytrichum commune, 131, 158; An 



apparent double-sporophyte in, 



Henry N. Andrews, Jr., 61 

 Ponicrus trifoliata, 146 

 Portulaca oleracea, 137; pilosa, 137 

 Potamogeton angustifolius, 128 ; bu- 



pleuroides, 2; capillaceus, 128; 



parmitanus, 129 

 Potentilla argentea, 180 ; monspelien- 



sis, 180; recta, 180; tridentata, 19 

 Prenanthes racemosa, 132 

 Primula mestassinica, 7 ; polyantha, 7 

 Priva lappulacea, 137 

 Proceedings of the Club, 25, 48, 87, 



183 I 



Prophyllum punctatum, 137 

 Prunus americana, 144; armeniaca, 



179 

 Pseudolarix amabilis, 146 

 Pteridium latiusculum, 143 

 Pteris latiuscula, 12 

 Pycnanthemum incanum, 182 

 Pycnoporus cinnabarinus, 119 

 Pyrola americana, 119; elliptica, 119 



Quercus dentata, 146 ; digitata, 146 



ilicifolia, 121 ; marylandica, 158 



maxima, 144; montana, 144 



phellos, 146; prinoides, 121 

 stellata, 158 



Rabinowitz, Abraham, 54 

 Radicula nasturtium-aquaticum, 148 

 Ramalina calicaris, 33 ; canaliculata, 



34; dealacerata, 37; farinacea, 



34 ; fastigata, 34 ; fraxinea, 34 ; 



pollinaria, 34; stenospora, 34; 



subamplicata, 34 



Ranunculus abortivus, 118, 143; 

 acris, 144; bulbosus, 143, 148; 

 delphinifolius, 121; hispidus, 118, 

 143; pusillus, 131; recurvatus, 

 143 ; repens, 143 



Rauwolfia hirsuta, 139 



Rehder, Alfred, 92 



Rhinanthes crista-galli, 19 



Rhododendron maximum, 7, 21, 150 



Rhodora canadensis, 21 



Rhus copallina, 158; typhina, 144 



Ribes cynosbati, 149; nigrum, 145 



Robinia pseudo-acacia, 148 



Roever, W. E., Field trip of July 30, 

 182 



Rosenberg, Miss Rosalie, 90 



Rossiter, Frank H., 89 



Rubus alleghensis, 119; hispidus, 

 144; illecrebrosus, 6; lacinatus, 

 131; occidentalis, 119; phoenico- 

 lasius, 145; procumbens, 119; 

 trifiorus, 119; villosus, 148 



Rudbeckia laciniata, 182 



Russula sarmentosa, 138 



Sagittaria edwardsiana, 129 ; grami- 

 nea, 129 



Salix alba, 144; lucida, 143; pur- 

 purea, 144 



Salvia farinacea, 179 



Sambucus racemosa, 149 



Sarcodes sanguinea, 73 



Sarothra gentianoides, 157 



Sassafras albidum, 119 



Schafifner, John H., 88 



Schultz, E. S., 89 



Scirpus atrovirens, 21 ; cyperinus, 21 ; 

 lineatus, 118; planifoHus, 143 



Scleranthus annuus, 144, 180 



Scoparia dulcis, 137 



Sedum sarmentosum, 6 



Selaginella rupestris, 18 



Senecio aureus, 143, 148; smallii, 

 157; tomentosus, 158 



Serapis helleborine, 18 



Seriocarpus asteroides, 144 



Setaria italica, 20 



