MALLOW, HIBISCUS, AND COTTON FAMILY. 107 



This has been called an epicalyx, i.e. " upon the calyx/' 

 as shown in the diagram (Fig. 39, II.). 



The five sepals meet by their edges, but do not 

 overlap ; when this is the case with sepals or petals, 

 they are called valvate. If the calyx be turned back, 

 a honey- secreting surface will be found at the base ; 

 an insect in searching for it passes its proboscis between 

 the bases of the petals, and so reaches the calyx. 



FxG. 39.—nibis'cus. I. Corolla, with petals adherent to 

 monadelphous stamens. II. Diagram. 



Fig. 40. —Mona- 

 delphous stamens 

 of Mal'va. 



The five petals are imbricate, overlapping one 

 another in a spiral manner, or eonto7ied, in the bud, 

 as shown in the diagram (II.)- 



They will be found to be adherent to the cylinder 

 formed of the ^ filaments (Fig. 39, I.), the tops of 

 which are free, each bearing a one-celled anther ; seen 

 also in Fig. 40 of the Mallow.^ 



The pistil will be found to be quite free inside the 



' When all the filaments cohere, the stamens are called mona- 

 delphous, i.e. " one brotherhood." 



