PLATE 9. 



Fig. 1. 65. 2. Phytopsis cELLtTLOsuM. (Pag. 39.) 



1. Base or root of one of these fossils, with its diverging and slightly ascending branches. The surface, not 

 being worn, |)resents no marks of structure. 



1 a. A part of the specimen presents the longitudinal fibres, with very distant transverse fibres. 



1 J. A longitudinal section, pa.ssing nearly through the centre of the stem, showing the longitudinal and trans- 

 verse fibres. 



1 c. Portion of two stems vvith the cuticle removed, showing the structure. 



1 d. Oblique sections near the termination of branches, presenting stellate or cruciform cells. 



1 a ( in part), presents quadrangular cells, arranged diagonally to the direction of the stems. These forms may 

 arise from weathering, or solution of cellular partitions in forms like 1 d. 



