28 



MORPHOLOGICAL BOTANY. 



Fig. 22. 



and down, as those of the Hasu 

 (Nelumbium speciosum) (Fig. 

 23) and Inutsuge (Ilex crenata) 

 (Fig. 24), while others, as those 

 of the Natsume (Zizyphus vul- 

 garis) (Fig. 27) and Satoimo, 

 can not be divided into such 

 similar halves ; the former are 

 said to be Disymmetrical, and 

 the latter Monosynvmetrical. 



Disymmetrical 

 ( Quadripartible) . 



Monosymmetrical 

 (Bipartible). 



Symmetrical- 



Fig. 22. — Unsymnietrical 

 leaf of the Shfikaido 

 (Begonia Evansiana). 



The principal forms of disymmetrical laminae are Orbi- 

 cular as in the Hasu (Fig. 13), Elliptical as in the Inutsuge 



Fig. 23. 



Fig. 24. 



Fig. 23.— Orbicular leaf of the Hasu 

 (Nelumbium speciosum). 



Fig. 24.— Elliptical leaf of the 

 Inutsuge (Ilex crenata ). 



