238 



INDUSTRIAL PLANTS 



Fibers somewhat similar to those of the coconut husk 

 form a network through the pulp of the sponge cucumber 

 (Fig. 225). These when removed from the ripe fruit form 



Fig. 223, H. — Rattans. Flowering and fruiting top {Calamus adspersus). 

 A, seed. B, same, cut vertically. C, flower-cluster sheath (of C. 

 Bangka). (Blume.) 



the "vegetable sponge" which druggists sell for bathing pur- 

 poses. In Japan it is used also in the manufacture of hats, 

 as stuffing for saddles, etc. 



