^'^^'^ CONTENTS. 



CHAPTEE VIII. 



Cleistogamic Plowees. 



General cliaracter of cleistogamic flowers — List of the genera pro- 

 ducing such flowers, and their distribution in the vegetable 

 series — Viola, description of the cleistogamic flowers in the 

 several species ; their fertility compared with that of the perfect 

 flowers — Oxalis acetosella — O. sensitiva, three forms of cleisto- 

 gamic flowers — Vandelia — Ononis — Impatiens — Drosera — Mis- 

 cellaneous observations on various other cleistogamic plants — 

 Anemophilous species producing cleistogamic flowers — ^Leersia, 

 perfect flowers rarely developed — Summary and concluding, 

 remarks on the origin of cleistogamic flowers — The chief con- 

 clusions which may be drawn from the observations in this 

 volume Page 310-345 



Index 346-352 



