Index. 



187 



Najasflexilis, 75, 76, 159. 



graminea, 53, 95, 99, 160. 



marina, 46, 57, 76, 81, 86, 100, 



159, 160. 

 minor, 52, 53, 86, 95, 99, 100, 



160. 

 Nathorst, Prof. A. G. , 51, 59, 60, 65, 



81, 82, 109, in, 112, 119, 120, 132, 



139, 141, 143, 147, 149, 169. 

 Natural sele.iion in insular floras, 12, 21. 

 Nehring, Prof. A., 51, 81, 153. 

 Neolithic Period, 38, 45, 46, 53, 58- 



71, 76, 79, 86, 90, 92, 93, 96, 98, 



106, in, 171-179. 

 New Forest, 16, 32. 

 Norfolk, i, 14, 15, 18, 27, 32, 35, 36, 39, 



50-52, 56-59, 64, 74, 82-85, 88 > 



89, 93, 94, 97, 100. 

 Northampton, 83. 

 North Sea Canal, 72. 

 North Sea, freezing of the, 39. 

 Norway, horse-chestnut in, n. 

 Nuphar htteum, 2S, 68, 72, 75, 81, 83, 



105. 

 Nvmphua alba, 28, 68, 72, 75, 81, 82, 



96, 106. 



Oak, 23, 25, 26, 28-30, 46, 53, 57, 



100, 145, 146. 

 Oceanic islands, plants of, 8, 12, 33. 

 (Enanthc fistulosa , 123. 



Lacheiialii, 123. 



Phellandrium, 124. 



Opium Poppy, 63, 98, 106. 

 Orkney, seedling oak in, 29, 30. 

 Osmunda rigalis, 91, 96, 168. 

 Ostend, Norfolk, 56, 83, 84. 

 Outliers in botany, 19, 22, 23, 40. 

 Overstrand, 84. 

 Overtoun, Ayrshire, 84. 

 Oxalis Acetosclla, 23, 112. 

 Oxford, 84, 85. 

 Oxyria digyna, 100, 139. 



Pakefield, 85, 86. 

 Palaearctic flora, 7. 



Palaeolithic man, 38, 45, 74, jj, 78, 85, 

 88, 91, 93, 100. 



Papa vet Argemanc, 106. 



somniferum, 63, 98, 106. 



Paradoxocarpus, see Stratiotes. 

 Parkstone, Dorset, 86. 

 Pear, 65, 119. 

 Peat-mosses, Oaks in, 100. 



Pine in, 16, £ 



plants of, 14 



100. 



15. 22, 49, 



79- 



Pcdicularis pa/ustris, 135. 



Pengelly, \V., 59. 



Pentland Firth, acorns carried across, 



3°- 

 Perennial plants, conditions needed by, 



11, 12. 



in oceanic islands, 12. 



Perthshire, 53, 64. 



Peucedanum palustrc, 124. 



Phillips, Prof. J., 76. 



Phragmifes communis, 57, So, 167. 



Physical geography, past changes in, 2, 



7, 8, 27, 28, 33-47- 

 Picea excelsa, 52, 64, 82, 83, 99, 151, 



T 5 2 - 

 Picris hicraciodes, 85, 130. 

 Piette, Ed,, on cultivated forms of 



P run us, 114. 

 Piuguicula graudi/lora, 5. 



vulgaris, 5. 



Pi 11 us uiaritiina, 12, 99. 



montana, 152. 



— sylvestris, 16, 24, 26, 53, 57, 64, 



82, 86, 99, 100, 152, 153. 

 Plantations, influence of, 16. 

 Pliocene flora, 34-36, 97. 

 Platan us, 75, 76. 

 Pods, ejection of seeds from, 23. 

 Poisonous fruits, 31. 

 Pollen, effects of wind-borne, on island 



plants, 12. 

 Polygonum amphibium, 1 ; 1. 



Aviculare, 138. 



Hydrnpiper, 138. 



In pat hi folium, 139. 



Persicaria, 139. 



viviparum, 139. 



Polystichum, 76, 81. 



Ponds, plants of isolated, 14, 28, 



3 2 - 

 Poplar, 61, 76, 81, 150. 

 Poppy, 24, 32, 63, 98. 

 Populus canescens, 71, 150. 



