PLATE X. 



Figs. 1, 1 a, 1 b, 1 c. Acrostichides densifolius, spec, no v. Pages 34 to 35. 

 Fig. 1. Portion of the normal frond or compound pinna. 

 Fig. 1 a. Magnified pinnules from the lower portion and Fig. 1 b magnified pinnules from the upper 



portion of Fig. 1, to show nervation. 

 Fig. lc. Pinnules of Fig. 1 magnified to show the partial imbrication. 

 Fig. '2. Acroslichides microphyllus, spec. nov. Pages 33 to 34. Shows a very slender variety of this 

 species. 



