CHAPTER VI. ANTHOTAXY. 



55 



sessile instead of pedicelled. Examples occur in the wild Ver- 

 vains and in the common door-yard Plantain, Fig. 180. 



Fig. i£o. 



Fig. 180. — Spike of Plantain. 



Fig. 181. — Catkin of Kirch. 



Fig. 182. — Head of Mimosa pudica 



Fig. 182. 



(6) The Catkin, or Anient, is similar to the Spike, having its 

 flowers sessile along a lengthened axis, but it differs frorn the 

 latter in the fact that it has scaly instead of herbaceous bracts, 

 as the clusters of staminate flowers of the Oak. Chestnut, Hazel 

 and Birch, Fig. 181. 



(7) The Head or Capitulum, is 

 like a Spike, except that it has the 

 rachis shortened so as to form a very 

 compact cluster of sessile, or nearly 

 sessile, flowers, as in the Clover, 

 Dandelion, Button-bush, Mimosa, 

 Fig. 182, and Marigold, Fig. 183. 



(8) The Strobile is a compact 

 cluster with large scales concealing 

 the flowers, as the inflorescence of 

 the Hop, Fig. 184. 



(9) The Spadix is a flower-cluster like a spike (or sometimes 

 shortened into a head) that is partially or wholly enclosed in a 



Fig. 183. 



Fig. 184. 



Fig. 183. — Head of Marigold. 

 Fig. 184 — Strobile of Hop. 



