496 H. HICKS ON PLANT-REMAINS FROM DENBIGHSHIRE GRITS. 



commented on Pacliytheea, and asked whether it could have any 

 relation to the floats in the Sargassum. These old plants seemed 

 capable of existing under conditions very similar to the present. 



Mr. Tawney said he thought a L&piclodendron had been found in 

 the Silurians of America. 



Dr. Hicks said that Saporta had described a species from about 

 the same horizon, supposed to be a mineralized fern. He thought 

 that here was an admixture of land- and marine plants, and believed 

 much more would be found. At present Nemat&phyeus was the 

 best preserved. 



