169 



Polygonum bistortoides, 146; saggita- 

 tum f. chloranthum, 119 



Polypodium vulgare, 134, 153 



Polvstichum acrostichoides, 134, 153; 

 acrostichoides lobatum, 9; acro- 

 stichoides revolens, 9; commune, 

 47; piliferum, 47 



Polystichus versicolor, 19 



Pontederia cordata, 9 



Populus tremuloides, 44 



Porterfield, W. M., 50, 51 ; Two hardy 

 bamboos of East China, 33 



Potamogeton natans, 9; Spirillus, 

 124; Vaseyi, 124; zosterifolius, 

 124 



Potentilla tridentata, 155 



Pre-Kansan peat deposit, A study of 

 a, Etlar L. Nielson, 53 



Probst, Mrs. Helen S., 48 



Proceedings of the club, 21, 48, 75, 

 113, 134, 156 



Protococcus nivalis, 144 



Pteris aquilina, 134, 153; multifida, 43 



Ptilidium pulcherrimum, 20 



Ptilocalis nutans, 146 



Ptilonella scabra, 145 



Pyronema confluens, 138 



Pyrus americana, 154 



Pyxidata barbulata, 44 



Quercus dumosa, 14 



Ramalina calicaris, 131 



Ranunculus rhomboideus, 144 



Rhamnus alnifolia, 7 



Rhizinia inflata, 138 



Rhododendron canescens, 154 



Rhus canadensis, 124 



Ribeslentum, 146;viscossissimun, 146 



Rigg, George B., 75 



Rinodina oreina, 154 



Roberts, C. M., 75 



Robinson, Benjamin L., 52, 116 



Rocky Mountains, An overlooked 

 early collection from the, Wil- 

 liard T. McLaughlin, 142 



Rosa Wood si i, 148 



Rosen bach, George B., 77 



Rosendahl, C. O., 75 



Rubus parviflorus, 146 



Run yon Robert, 48 



Russula foetens, 31; heterophylla, 31 



Sagittaria heterophylla, 124 



Salix fluviatilis, 148 



Sambucus canadensis incisifolia, 8 



Sarracenia Drummondii, 18; laciniata 

 15; minor, 17; variolaris, 17 



Sarracenia laciniata, Remarks on the 

 name, Harold N. Moldenke, 15 



Schmidt, Miss Ruth V., 22 



Scirpus validus, 124 



Scleranthus annuus, 44 



Scleroderma vulgare, 31 



Scolopendrium vulgare, 134 



Scully, Frances J., 75 



Sedum Douglasii, 147 



Seifritz, William, 24 



Scenecio lugens, 146 



Severy, J. W., 76 



Shaffner, John H., 22 



Silene pennsylvanica, 73 



Simonds, Miss Florence T., 50 



Sinnott, Edmund W., 22, 157 



Sisymbrium Sophia, 145 



Sisyrinchium grandiflorum, 146| 



Small, John A., Field trip of 

 Sept. 8, 153 



Smilacina trifolia, 153 



Smiley, D., 50 



Smith, Albert C., 22 



Smith, Alexander H., 48 



Sperry, Omer E., 48 



Spiranthes cernua, 7 



St. John, Harold, 51, 113 



Stanley, OranB., 48 



Steere, William C, 75 



Stellaria media, 44 



Stokey, Miss Alma, 50 



Stone, Miss Grace A., 48 



Stone, Witmer, 136 



Stout, A. B., 52, 115, 135, 158 



Streptopus roseus, 132 



Svenson, H. K., Plants from the es- 

 tuary of the Hudson River, 117; 

 Plants of the Vicinity of New 

 York, review, 68 



