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 
algee—Hay meadows—Sudd of Nile—Ganges and Amazons— 
Hylea—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 — Haemanthus — Gravity on Solomon’s seal—Statolith 
theory — Tendrils — Barberry stamens — Heckel’s operation — 
Chemical sensitiveness—Bacilli and taste—Sundew and nepenthes 
—Massacre of butterflies fs ‘ ‘ ; . . .» 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 ofa single plant. . re ree 2.7) 
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 meimalic Cockepur thorn— 
Gum-tragacanth—Thorny plants in moist climates—Holly—Wait- 
a-bit Acacia—Distribution of acacia—Colonisation of deserts— 
Welwitschia . . . 5 A . . A - . 169 
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