62 



BRACTS. 



Plate XIX. 



12 



General subject Define the term. Name each fignre. How is the Bract 

 in the amentaceous trees In the Sun-flower tribe in the Fennel tribe in the 

 Grasses ? When the bracts inclose many flowers whnt are they called ? What 

 figures in the plate represent the Involucre, and to what tribes do they belong 1 

 What corresponds with the involucre in Grasses, and what are the parts that 

 inclose the single flower ? How are the bracts in fig. 6 fig. 8 fig. 9 ? What 

 do they form in fig. 11 fig. 12? What peculiar form at fig. 18 ? What are rep- 

 resented in figs. 4 and 5 ? 



