220 



COMPENDIUM OF GENERAL BOTANY. 



zygomorphic flower in a suitable position to be visited by insects. 

 Fig. 141 illustrates the phenomenon of "resupination." The 

 above-mentioned labiates show this zygomorphy in a marked degree 

 in the two-lipped calyx and corolla (Figs. 142 and 143). This 



FIG. 141. Orchis fusca. 



(After Berthold and Landois. ) 



FIG. 142. Dia- 

 gram of a la- 

 biate flower. 



(After Krass and 

 Landois.) 



FIG. 143. SaMa pratensis. 

 a, Anthers; b. pistil. 



PIG. 144. Dia- 

 gram of apapilio- 

 naceous flower. 



(After Krass and 

 Landois.) 



FIG. 145. Dia- 

 gram of *a cru- 

 ciferousflower. 



(After Krass and 

 Landois.) 



FIG. 146. Centaurea cyanus. 

 (After Krass and Landois.) 



family, which comprises about 2600 species, is widely distributed 

 (EICHLEE). The Papilionacece comprise about 3000 species 

 (Eichler) ; their floral arrangement is represented diagramatically 

 in Fig. 144. 



The Liliaceve represent the actinomorphic type. Of the dicoty- 

 ledons we shall refer to the Cruciferce (Fig. 145), comprising about 

 1200 species (Eichler) and distributed throughout the temperate 

 zones. 



