102 



MANNANE AS A RESERVE MATERIAL. 



needles soluble with difficulty in hot alcohol and melting at 

 205°C. evidently phenylglucosazon. Therefore, there can be 

 hardly any doubt that our sugar is mannose, and the white 

 substance in the seeds a polyanhydride of mannose called man- 

 nane. It is physiologically highly interesting to see that the 

 seed stores up here in the form of an anhydride a sugar that 

 is different from the sugars contained in the flesh of the fruit. 



