fOMPAUATIVE ANATOMY OF THE CUCURBITACE/E. 41 



various organs of the Cucurbit ace?e, the first place 1)eing held hj 

 those from the rhizome of Gymnosteiiuiia clsso'ides.^- The diameters 

 of the large starch-grains from the tubers of Trichosanthes are 



CHAPTER YIII. 



THE FRUIT. 



The surface of tlie fruit of the Cucurbitaceœ is mostly smooth, 

 except in Actinostemma vacemosum, Momordicn Chamntia and 

 Cucumis satiüus, where it is raised into tubercles. The nature 

 of the tubercles varies, for an examination of their anatomical 

 structure shows that tlios3 of Actinostemma racemosum (PI. lY. 

 Fig. f58) and Jlomonlica Cliarantia are only parenchymatous 

 outgrowths, while those of Cucumis saiivus are the large pro- 

 tuberant bases of trichomes, on which the latter have formerlv 

 rested (PI. IV. Fig. Ö7). 



Epidermis. The epidermal cells of the fruit have several 

 distinct characters in the different species. To begin with, the 

 shapes of the epidermal cells may be (a) radially flattened, ())) 



1) See p. 15. 



