Contents 



CHAPTER XI 



RECONQUEST OF THE WATER 



PAGE 



Marsh plants and oxygen Aerated tissues Florida hyacinth Phrag- 

 mites Pondweed leaf Flowering of Elodea Waterfowl and 

 seeds Trapella Colonising of water by plants Reed thickets 

 Marsh plants and seeds Waterlily zone Abysms Deepwater 

 algce Hay meadows Sudd of Nile Ganges and Amazons 

 Hylsea Pampean sea Submerged worlds of loch Water lobelia 

 association Bankfoot colonisers Cladophora in rivers Apodya 

 Polluted water 125 



CHAPTER XII 



SENSE-LIFE AND SENSIBILITY 



Anthropomorphism Protoplasmic threads Nanna and its critics 

 Breadfruit and Infusorian Emotional distribution Maeterlinck's 

 laurel Sunlight sensitiveness Lenslike cells Photographs by 

 plant-cells H^emanthus Gravity on Solomon's seal Statolith 

 theory Tendrils Barberry stamens Heckel's operation 

 Chemical sensitiveness Bacilli and taste Sundew and nepenthes 

 Massacre of butterflies 140 



CHAPTER XIII 



THE INDIVIDUAL PLANT 



Sacrifice of old leaves Self-surgery in leaves Resin in an emer- 

 gency Regeneration Beheading of roots Fern growing-points 

 Torenia leaves Germ plasma Ceropegia internodes Competi- 

 tion within the body of a single plant ...... 152 



CHAPTER XIV 



SEASIDES AND STRAND PLANTS 



Circulation of water Estuarine mud Zostera meadows Submerged 

 pollination Salicornia colonisation Salt water and self-protection 

 of Salicornia The Camargue Armeria mudflats Vaucheria 

 Rushes and littoral meadow Marine reed-thickets Spartina 

 Shingle beds Sandflora Sanddunes, formation and colonisation 

 Psamma Chilian sanddunes Landes of France The dismal 

 swamp Spanish shores . . . . . . . 157 



CHAPTER XV 



DESERTS 



Winds and desert Drying up of the world Characters of desert 

 plants Ephemerals Karoo Plants like stones Effect of rain 

 Cactus and Euphorbias Shrinking of Cereus Spines of Succulents 

 Grey hairs Thorns and grazing animals Cockspur thorn 

 Gum-tragacanth Thorny plants in moist climates Holly Wait- 

 a-bit Acacia Distribution of acacia Colonisation of deserts 

 Welwitschia 169 



xi 



