742 



BOTANY 



PART II 



(c) Flowers zygomorphic 

 Order 6. Scitamineae 



Tropical plants, sometimes of large size, in a few cases arborescent. 

 Flowers dorsiventral or asymmetrical. Perianth differentiated into 



FIG. 823. Acorus calamus. Flowering plant. Single flowers seen from above and from the side. 



(i nat. size.) 



calyx and corolla. Androecium greatly reduced ; some of the 

 stamens represented by staminodes, and resembling the segments 

 of the corolla. Ovary inferior, trilocular. Seeds with perisperm. 



