PLATE XLI. 



Poh/sf'icJinm mifahn/anwnsL' Hayata. 



Fig. 1. Fronds of tlie plant. 



2. A chaff, detaclied from the basal portion of a frond. 



3. Another one, detached from the middle portion of a frond. 



4. A pinna. 



5. Section of a sorns. 

 0. Sporangia. 



7. Section of the ])asal ])ortion of a frond. 



8. Section of the middle portion of a frond. 



