)WE 



PLATE 3 



Lithophyllum homogeneum, n. sp. 



FIG. 1. Photograph of a radio-vertical section (from same fragment as section shown in fig. 2), 

 showing secondary hypothallium, etc., enlarged 100 diameters. 



FIG. 2. Photograph of an obliquely transverse section of a part of a main axis, enlarged 42 

 diameters. 



