7 



bearing tetraspores, extending from the upper margin to a longitu- 

 dinal bar ; the former shown in section, the latter mostly in surface- 

 view of the side ; a, bottom surface of a gap in the plane of the 

 section ; the ends marked x and x 1 in one portion are connected with 

 those bearing the same marks in the other, but with the intervening 

 portions omitted, *-* ; portion marked 5 b measures 32 p in thick- 

 ness. Fig. 6 : portion of the surface-view of the net-work bearing 

 tetraspores, s *. Fig. 7 : portion of the same as tig. 6 magd., ^ . 

 Fig. 8-' cross-section of the net-work bearing tetraspores, 9 1 -. Fig. 

 9 : surface-view of the side of a longitudinal bar showing the cells 

 covering a tetrasporangium, ^. 



Martensia Hering 1841. 

 to * \- L A- 



NITOPHYLLEAE (DELESSERIACEAE). 



c H b ft, 5 t tf b 35 ft. 

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mm+ *, m * ? fig ' & m - \s * ?&$'&?&* %-s^n 



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36 fr -> ^ te fif- i *', fit / t$ * # ^ '> fiS ^ Ift Jl - Jfe ft y r & * , 



m v 7 m E & / ji u / ^ is - - u g * r# ^ IK ^ ? t ^ , at if? 



JK ^ f ili' // ^ ? . fig / 6St fi - ^ ^ m = * 7 . \3jL&=- ! $ ? 7 fo& 



m r i* => h^.^-y^lB^M^^iKBSa^^S^^^ ( - 



