THE HYPANTHIUM 



45 



organs really originate at the torus, and that in a cross-section through 

 the adherent portions the microscope will often demonstrate the tissues 

 of such a part adnate to those of the part from which it appears to 

 emanate. In descriptive phraseology, the term "Calyx adherent" 

 always means "adherent to the ovary," or epigynous, even though the 



Fig. 54. Adnate petal of Vanilla. .55. Gynandrous stamens of Adenium, as prevalent in the Apo- 

 eynaceae. 56. Flower of colocj-nth, with inferior ovary and superior (adherent) calyx. 57. Longi- 

 tudinal section through flower of Phlox, showing stamens adherent to corolla. 58. The same through 

 fiower of cherry, showing adhesion of all parts except the pistil. 59. "Double " flower of rose, showing 

 the stamens of the "single" flower (60) transformed into petals. 



words "to the ovary" are omitted. Another mode of stating the same 

 condition is to say "Ovary inferior" or " Calyx superior." It frequently 

 happens that the condition is only partial, when the terms "Half 

 inferior" and "Partly inferior" are employed. There are cases where 

 proper application of any of these terms is doubtful and some perplexity 

 is created. 



The Hypanthium. — In many cases the torus, which is to be remem- 

 bered as the end of a branch, is hollow and has the lower portion of the 

 flower inside of it and adherent to the inner surface of its cup (Figs. 



