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CONTENTS 



INTRODUCTION 



First Section 

 Historical Development of Flower Pollination . 



PAGE 



I 



Second Section 



Present Standpoint of Flower Pollination . 



I. Survey of the Modes of Pollination and of 

 the Sexes ...... 



II. Autogamy 



Self-sterile Plants 

 Self-fertile Plants 



III. Geitonogamy 



IV. Xenogamy 



V. Heterostyly . 

 VI. Cleistogamy 

 VII. Parthenogenesis 



THE Distribution of 



VIII. Flo\ver-groups 



I. Water-pollinated Plants, Hydrophilae 



II. Wind-pollinated Plants, Anemophilae 



III. Animal-pollinated Plants, Zoidiophilae 



(a) Plants with Bat-pollinated Flowers, Chiropterophilae 

 (6) Plants with Bird-pollinated Flowers, Ornithophilae 



(c) Plants with Snail-pollinated or Slug-pollinated Flowers. 



Malacophilae 



(d) Plants with Insect-pollinated Flowers, Entomophilae 

 Protective Arrangements for Pollen . 



Conspicuousness 



Odour 



28 



28 



34 

 36 

 38 



41 

 42 



44 

 51 

 60 



62 



68 

 69 



72 

 72 

 73 



78 

 80 

 80 



83 

 88 



