SEED-BEARING 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 Archichlamydeae 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 
