28, 29.$ 



STUDY OF ANOMALOUS FLOWERS. 



85 



84. The torus, or receptacle, is sometimes strangely 

 modified. In the little Myosurus (32), in some But- 

 tercups, and in the Tulip-tree we find a lengthened or 

 spindle-shaped torus lengthened according to the 



32, Flower (magnified) of Myosurus ; a vertical section showing its elongated torus, etc. 33, The 

 same, natural size. 34, Flower of Isopyrum bitevnatum ; vertical section, showing the convex or globular 

 torus, etc. 35, Flower of Rose, showing its excavated torus. 



nature of a branch ( 35), and all covered with the 

 multiplied pistils. On the contrary, we have in the 

 Rose (35) and Lady's-mantle (38), an excavated torus, 

 within which the carpels are held, while the other 

 organs are borne upon its elevated rim. 



36, Paeonia Moutan, showing its very large disk (d) sheathing the ovaries (p). 37, Pistil of the Lemon, 

 with its base surrounded by the disk, d. S8, Section of flower of Alchemilla, showing its single simple 

 pistil, large disk, and excavated torus. 



85. The disk is a portion of the receptacle raised 

 into a rim somewhere in the midst of the whorls. It 

 is found between the ovary and stamens in Paeony 



