SEED-BEAEING PLANTS 



471 



ing season an erect stem is sent up which bears the flowers 

 and fruit (Fig. 400). 



416. Parsley Family (Umbelliferae).— The most highly 

 organized family of the Archichlamydese is that to which 

 the common parsley belongs. In this family the calyx- 



FiG. 354- — Rosette of the evening-primrose (CEnothera biennis). 



tube adheres throughout its length to the wall of the ovary, 

 and the five petals and stamens are inserted on a disk 

 at the base of the two styles (Fig. 355)- The relatively 

 small flowers are, with rare exceptions, borne in clusters 

 known as umbels. The characteristics of an umbel are 



