THE STRUTHIOLA FAMILY, 



225 



to be in front of the sepals (III., sf). In other genera, 

 as Gnid'ia, the complete number, eight, is present. 



The question arises — What do the so-called glands 

 represent? They are not always present. They are 

 wanting in Arthroso'len and Passeri'na. Again, in 



I. 



Fig. ^^.—Struth'iola. 



Gnidfia, the glands look like solid anthers or else 

 like little petals ; so that one is tempted to think that 

 that is just what they once were, but that they have 

 ■" degenerated " into their present form. A common 

 feature of the calyx in these genera is to "split 



Q 



