PLATE CLXXIV. 



a is the section of the Madhkakree shown on the foregoing Plate CLXXIII. The rind is 

 aromatic and not bitter; the pulp is white, dry, and sweetish; the seeds are white, 

 when cut. The thick skin is also sweetish. In section the larger oil-cells are 

 distinct, but not the small ones. The arrows indicate deep furrows, of which the 

 three A, A, A are deeper than the others. They appear to be the joinings of the carpels, 

 while the indentations shown by the crosses appear to correspond to the midribs of 

 the carpels. In that case the rind whorl would consist of about nine carpels ; while 

 the pulp consists of eleven, or probably twelve, as a appears to be a fusion of two 

 carpels, as it has two nourishing vessels or midribs. It is evident that twelve pulp 

 carpels and nine rind carpels can neither be opposite nor alternate, but sometimes the 

 one and sometimes the other. 



b is the base or peduncle end, showing more distinctly the joinings of the carpels. Probably 

 b' b' is the fusion of two carpels. In that case the rind would consist of about 

 nine carpels, c shows the division of the apex in eight or nine distinct carpels. 

 In .the body of the citron the carpels are more or less fused, and their number is 

 counted with less certainty. These points are noted in connection with Phyllotaxis, 

 mentioned in the Chapter on "Morphology." 



