BEANCHIOCEPvIANTHUS IMPERATOR (aLLMAN). 



241 



Woodcut 2. 



Diagram sliowing tlie upper surface of the disc. 

 V, hiatus at the lower edge of the disc. Other letters as in Woodcut 1. 



surface of the hydrocaulus. The longer {i. e. up— clown) diameter 

 of this ovoidal space measures 60 mm,, while the transverse at 

 the widest middle portion is only 2-3 mm. This space is des- 

 titute of the radial canals which are prominently seen in the 

 remaining part of the disc. 



Around the margin of this hypostomal region there arises 

 from the surface of the disc a row of dendritic gonosomes 

 {p) which in shape strongly remind one of the heads of cauliflowers. 



