COMPATÎATIVE AXATO:\rY OF TFÎE CrCüRRITACE.E. 4/ 



Crystals of calcium oxalate are found in tlio fruit of many 

 species. Especially Momonlica Charanthi ami Bemiicftm. cerifera 

 contain large quantities of them. 



GHAPTEE IX. 



THE SEED. 



Contour, - The contour of a transverse section through the 

 seed shows interesting forms in each species (PL I. Fig. 18-33). 

 In Luffa cylindr'ica, L. acutangula, Cucumis sativus, C. Jlelo, 

 Lagenaria vulgaris, Tricliosanthes japonica, T. multiloba and 

 Cucurbita Pepo it is of a spindle shape; in Actinostemma racemosum, 

 Schizopepon bryonicefoUus, var. japonicus, 3Iemordica Cliarantia, 

 Trichosanthes ciicumeroides and Gymnostemma cissoides it is barrel- 

 shaped, that of Tricliosanthes ciicumeroides having two processes 

 on both truncated ends ; and in Melothria japonica, Ciirullus 

 vulgaris and Benincasa cerifera, it is flattened, that of Benineasa 

 cerifera being also noticeable for having three processes on both 

 edges. 



Testa. The testa of the Cucurbitaceoi consists, according to 

 FiCKEL,^^ of the following seven layers : (i.) epidermis, (ii.) pitted 



1) J" F. FiCKEL. loc. clt. 



