XXIV EXPLANATION OF THE PLATES. 



4. One of the scales of the female catkin, with its two 



naked ovules. 



5. Inner view of a similar scale when mature, with its two 



winged seeds. 

 D. Tamus communis, Linnceus : p. 118. 



1. One of the male flowers with stamens. 



2. One of the female flowers with inferior ovary and three- 



branched style. 



3. The style, separate. 



4. A ripe berry. 



PLATE XX. 



A. Paris quadrifolia, Linnaeus : p. 119. 



1. One of the awl-shaped stamens. 



2. The pistil. 



3. A ripe berry, with the persistent perianth. 

 B. Hydrocharis Morsus-ranse, Linnaeus : p. 119. 



1. The stamens removed from the flower. 



2. One of the stamens, separate. 



3. The pistils, with six two-cleft stigmas. 

 C. Ophrys apifera, Hudson : p. 126. 



1. Front view of the lip. 



2. Side view of the lip. 



3. The column, showing the anther-case and pollen-masses. 



4. One of the pollen-masses separate. 

 D. Iris Pseud-acorus, Linnceus : p. 125. 



1. A stamen. 

 E. Convallaria majalis, Linnceus : p. 127. 



1. A flower with its pedicel and bract. 



2. Vertical section of a flower, showing three of the sta- 



mens and the pistil. 



3. A ripe berry. 



