xii TABLE OF CONTENTS 



PAGE 



Thickness of the Gills The Ends of the Gills The Gill-chamber and 

 the Annulus Conditions for the Oiigin of Fruit-bodies The Fate of 

 Rudimentary Fruit-bodies Effect of Dry Weather on Development 

 The Spore-discharge Period and the Number of Spores The Mushroom 

 and the Panaeolus Sub-type Text-book Illustrations of the Hymeniurn 

 The Mottling of the Gill Surface Methods for Examining the Hyrnenium 

 in Surface View The Number and Size of the Spores on Individual 

 Basidia Rate and Mode of Development of the Spores on an Individual 

 Basidium An Analysis of the Hymenium of the Cultivated Mushroom 

 The Hymenium of the Wild Mushroom Camera-lucida Studies of the 

 Young Hymenium Camera-lucida Studies of a Nearly Exhausted 

 Hymenium - - Camera - lucida Studies of a Completely Exhausted 

 Hymenium Secotium agaricoides ....... 360 



GENERAL SUMMARY . .... 457 



GENERAL INDEX . 467 



