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, Linnceus : p. 119. 



1. One of the awl-shaped stamens. 



2. The pistil. 



3. A ripe berry, with the persistent perianth. 

 B. — Hydrocharis Morsus-ranee, Linnceus .- p. 119. 



1. Tlie 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. Eront 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-aeorus, Linn(sus : 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. 



