SiiWow {Salix ca/>rea): I. Staminate catkin ; II. Pistillate catkin, p. 134. 



Petaloid stigmas of Iris. 

 p. 140. 



Flower of an orchid cut open (magnified). 



e, lip ; s^, spur ^ /, pollen masses ; r, rostellum ; 



0, ovary; br, bract, p. 136. 



[Behveenpp. 134 a«^/ 135. 



