THE INFLORESCENCE. 



35 



3. The following are varieties of indeterminate inflorescence : 

 raceme, corymb, umbel, spike, spadix, catkin, head and pani- 

 cle. The raceme has the pedicellate flowers scattered on an 

 elongated axis (Fig. 48). The corymb is the same as a ra- 

 ceme, with the lower pedicels elongated so as to make the 

 flower-cluster level-topped (Fig. 49). In an umbel the axis 



Fig. 48. 



Fig. 49. 



is reduced, and all the pedicels proceed from a common point 

 (Fig. 50). The spike is similar to a crowded raceme, with 



Fig. 50. 



Fig. 51. 



Fig. 52. 



the flowers sessile (Fig. 51). Two forms of the spike have spe- 

 cial names : the spadix (Fig. 56), which is fleshy and com- 



