36 THE SECOND BOOK OF BOTANY. 



Are they grown to each other ? 



What word in the schedule answers this question ? 



Do the carpels cohere ? 



How is this expressed ? 



Questions reviewing the Subject of Cohesion in the 

 Parts of a Flower. 



What is meant by cohesion in botany ? 



How do you describe a calyx with no cohesion 

 (Fig. 35)? A corolla (Fig. 37)? Stamens (Exercise 

 VIII.)? Pistil (Fig. 41) ? 



When the sepals are coherent, how do you de- 

 scribe the calyx (Fig. 36) ? The corolla (Fig. 38) ? 



FIG. 85. FIG. 86. 



Polysepalous, no Cohesion. Gamosepalous, coherent. 



When stamens cohere by their anthers, what word 

 do you use in describing them (Figs. 24, 25, and 26) ? 



When, by their filaments in one bundle, what 

 word is used (Fig. 27) ? 



In two bundles (Fig. 28) ? 



In three or more bundles (Figs. 29 and 30) ? 



How do you describe a coherent pistil (Fig. 42) ? 



There are a few common flowers found every- 

 where in the country, in which there is no cohesion ; 

 but, in most flowers, the parts of some of the floral 

 circles will be found more or less united. 



