CHAP, xxiv ANTHOTAXY 103 



5. Make a diagram to show these points. 



V. The Spike. Examine the flower cluster of one of 

 the various species of Plantain and notice : 



1. Its general shape. 



2. The order of blossoming. 



3. The long peduncle. 



4. The sessile (i.e. without pedicels) flowers. (Lateral, 



axillary structures here also.) 



5. Make a sketch to show this. 



VI. The Spadix. Examine the flower cluster (often 

 erroneously called a flower) of the Calla and notice : 



1. The broad white bract (called in this case, a spathe) at 



the base of the flower cluster. 



2. The general shape of the flower cluster. 



3. The peduncle. 



4. Whether the flowers are sessile or not. (Lateral and 



axillary ?) 



5. The order of blossoming (noticing that the flowers are 



imperfect with pistillate below and staminate above). 



6. The fleshy consistency of the whole cluster. 



7. What is the spathe for ? Why is it so conspicuous ? 



8. Make a sketch of the Calla. 



9. Compare it, if possible, with the Flamingo Plant or 



Anthurium of the greenhouse and notice the same 

 parts, but also noting the very different color of the 

 spathe. 



VII. The Head. Examine the flower cluster of a Red 

 Clover, Lantana, or Verbena and notice : 



1. The general shape of the cluster. 



2. The insertion of the flowers. 



