•220 



COMPENDIUM OF GENERAL BOTANY. 



ZYo;omorp]iic flower in a suitable position to be visited by insects. 

 Fio-. 14-1 illustrates the phenomenon of "resupination." The 

 above-mentioned labiates show this zjgomorphy in a marked degree 

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



Fig. 141. — Orcliis fusca. 

 (After Berthold and Landois. ) 



Fig. 142.— Dia- 

 gram of a la- 

 biate flower. 



(After Krass and 

 Landois.) 



Fig. 143. — Salvia pratensis. 

 a, Anthers; 6. pistil. 



Fig. 144. — Dia- 

 gram of a papilio- 

 naceous flower. 



(After Krass 

 Landois.) 



and 



Fig. 145. Dia- pj^ J45 — Centaurea cyanus. 

 gnim of a cru- (After Krass and Landois.) 



ciferousflower. 



(After Krass and 

 Landois.) 



family, which comprises about 2600 species, is widely distributed 

 (Eichler). The PapilionacecB comprise about 3000 species 

 (Eichler) ; their floral arrangement is represented diagramatically 

 in Fig. 144. 



The Liliacecs represent the actinomorphic type. Of the dicoty- 

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

 1200 species (Eichler) and distributed throughout the temperate 

 zones. 



