269 



Pleurothallis, 72, tribuloides, 83 



Pluchea camphorata, 214 ; petiolata, 1 16 



Podocarpus Urbanii, 84 



Podostemon abrotanoides, 199 



Pogonia, 72 



Polarity in the Weeping Willow, I 



Pollination, Knuth's Handbook of [re- 

 view], 173 



Polygala nana, II3-I15 



Polygonella articulata, 213 



Polygonum arifolium, 208, 214; hydro- 

 piperoides, 213 ; tenue, 115 



Polypodium Phyllitidis, 83 ; serpens, 83 



Polyporaceae of central Maine, the pi- 

 leate, 34 



Polyporus elegans, 35 ; fagicola, 35 ; 

 fissus, 35 ; Polyporus, 35 



Polystichuni Lonchitis, 258 



Pond, R. H., personal, 215 



Pontederia cordata, 203 



Porodaedalea Pini, 36 



Poronidulus conchifer, 35 



Porteranthus, 147 



Porto Rico, Two new coralline Algae 

 from Culebra, 256 



Postelsia, the Year Book of the Minne- 

 sota Seaside Station [review], 250 



Potentilla canadensis, 190 



Prain, D., personal, 17 



Prairies, Some Phytogeographical Fea- 

 tures of the, 126 



Preservation of our Native Woodlands, A 

 Plea for the, 98 



Pringle, C. G., personal, 20, 155 



Pringlea, 88 



Pringleochloa, 85 



Pringleophytum, 88 



Proceedings of the Club, I905, 29 Nov., 

 12 ; 12 Dec, 14; 1906, 9 Jan., 39; 

 31 Jan., 51 ; 13 Feb., 71 ; 28 Feb., 

 73; 13 Mar., 75; 28 Mar., 96; 10 

 Apr., 97 ; 25 Apr., 124; 8 May, 153; 

 23 May, 154: 9 Oct., 253 ; 31 Oct., 



254 ' _ 



Prunus, .Suppression of FloralCyclesin,32 

 Pseudotsuga, 252 

 Psilotum complanatum, 83 

 Psoralea, 232 ; eglandulosa, 232 ; pe- 



dunculata, 232 

 Publications, the F'ating of Botanical, 97 

 Pycnoporus cinnabarinus, 35 

 Pyropolyporus igniarius, 36 ; igniarius 



nigricans, 36 



Quercus Catesbaei, 212; digitata, 199; 

 Emoryi, 51 ; geminata; 203; lauri- 

 folia, 201 ; marylandica, 199 



Radicula, 30 : brevipes, 30 ; glabra, 30; 

 Rafinesquia, 87 



Ranunculus septentrionalis, 123 ; sicae- 

 formis, 123 



Raphanus lanceolatus, 29 ; Raphanis- 

 trum, 31 



Rare Uromyces, A, 249 



Rate of Growth of Panaeolus retirugis, 

 The, 157 



Ray flowers in Gaillardia aristata, Tubu- 

 lar, 190 



Reed, H. S., personal 155 



Relation between Viola pedata and Iris 

 verna, A hitherto unnoticed, 192 



Remarks on a destructive Disease of 

 Chestnut Trees, 74 



Remarks on the Flora of Nova Scotia, 257 



Remarks on the Formation of aerial 

 Tubers in Solanum tuberosum, 255 



Rendle, A. B., personal, 55 



Renfrewia, 253 ; parvula, 253 



Retrogression of Pistil and Sepalody in 

 Gentiana viridula, 32 



Reverchon, J., death of, 18 



Reviews : Keller and Brown's of Phila- 

 delphia, 37 ; Lord Avebury's Notes on 

 the Life History of British Flowering 

 Plants, 38 ; Burgess's Species and 

 Variations of Biolian Asters, 90 ; Win- 

 ton's Microscopy of \'egetable Foods, 

 94 ; DeVries' Species and Varieties, 

 Second Edition, 150 ; Pfeffer's Physiol- 

 ogy of Plants, 151 ; Knuth's Handbook 

 of Flower Pollination, 173 ; Rjdberg's 

 Flora of Colorado, 237 ; Postelsia, the 

 Year Book of the Minnesota Seaside 

 Station, 250 



Rhamnus caroliniana, 8; Frangula, 102 



Rhexia, 116; aristosa, 83 



Rhipidopteris peltate, 83 



Rhipsalis, 14 



Rhizinia, 252 



Rhode Island, A newly introduced Plant 

 in, 189 



Rhus, II ; aromatica, 8 ; coriarioides, 11 ; 

 fraterna, 12; hirta, il ; Palaeocotinus, 

 12 ; vexans, 12 



Rhus and its Allies, li 



Rhynchospora, see Ryiichospora 



Richards, H. M., personal, 155 



Robbins, W. W., Tubular Ray-flowers 

 in Gaillardia aristata, 190 



Robinson, B. L., personal, 19 



Robinson, C. B. , Lord Avebury's Notes on 

 the Life Historj- of British Flowering 

 Plants, 38 ; Remarks on the Flora of 

 Nova Scotia, 257 ; personal, 18, 131, 

 215 



Robinson, W. J., personal, 196 



Rolfs, P. H., personal, 17 



Roripa, 30 ; hispida, 30 ; palustris, 3c 

 Walteri, 30 



