50 



Plintniiiicrognif^lis of Bntmiical Studies, 



78. — L.S. Flower-bud of " GoSSypium Sp.," Cotton plant (Compound Photomicrograph; 



Stiiima. 



- W- ^ 



Fleshly pillar to which the anthers 

 are attached. 



The anthers containing pollen. 



The petals and sepals. 

 Bract. 



\ 'iJJfli^Sf i Ovules. 



I * ' ' 1 ' J 



\ ^ -ir^~f '^ Apex of flower-stalk. (Thallamus.) 



79. — L.S. Catkin of " Salix caproea," Common sallow. 





) 





Central axis. 



N'asctilar system of catkin. 



/- Anthers. 



Flower-scales 



Filament. 



