INDEX 



175 



Marsh Pennywort (Hydrocotyle 



vulgar is), 104 



Migration, 52, 55, 59-60, 73, 137 

 Mole, 52, 160 

 Moor, 26, 86, 95-101 



animals, 112-113 

 Moraines, 35, 130 

 Moss : 



Bog (Sphagnum), 87, 97"99, 



157 



Club, 26 

 Iceland, 25 

 Reindeer, 25 

 Mountains : 



dislocation, 38, 40 

 fold, 36, 43 

 glacial, 35 

 saddleback, 37 

 volcanic, 33 f., 38, 43 

 Movements of plants, 18, 20, 



101 



Mushroom (Psalliota campestris), 

 106, 108-109 



N 



Natural selection, 46 

 Nests, 15 



O 



Oak-apples, 30 

 Orthesia, 18 

 Otter, 157 



P 



Palestine, physical features, 38, 



Papyrus, 104 



Partner-plants. See also Sym- 

 biosis, 133 



Peat, 86, 95, 97-99, 102, no 

 Perennials, 27, 28 

 Physiological drought, 58, 92 

 Pitcher plants, 102 

 Plateau, 41-43 



Pollination. See Fertilisation 

 Polyzoa, 145 

 Pond weeds, 139 

 Prothalli, 152 



Ptarmigan (Lagcpus mutus), 47- 



48, 114 

 Puffin, 116 



R 



Raven (Corvus corax), 80-82 



Red water, 135 



Reindeer (Rangifer tarandus], 

 66, 69 



Ring Ousel (Turdus torquaivs), 84 



Rivers, 97 



Rock plants, 27, 29' 



Rock Rose (Helianthemum vul- 

 gar e), 1 8 



Rocks, 37, 42-43 



Roots, 20, 58, 89, 103, 139, 14* 



Ruminants, 70 



Salamanders, 56 



Sand, 40 



Saxifrages, 28 



Sea Pink (Armeria vulgaris), 28 



Sensitive plant, 20, 21 



Shrew, Water, 159 



Slow Worm (Anguis fragilis), 



123-126 

 Snakes, 122-126 

 Snow, 54, 55 

 Snow Mouse (Microtus nivahs), 



72-73 



Snowy Owl, 48 

 Soil, 86, 99-100, no 

 Sphagnum. See Bog Moss 

 Spiders, 16, 113 

 Sponges, 137 

 Springs, 157 

 Stags. See Deer 

 Stoat. See Ermine 

 Stonechat (Pratincola rubiccla), 



119 



Stonewort (Char a), 132 

 Streams, in * < 

 Sundews (Drosera), 20, 101 

 Sunlight, 19, 24, 40, 58, 59, 7 2 > 



109, 134, 143 

 Symbiosis (partner plants), 23, 



89, 143 



