PLATE I. 



G-EN. 1.— POLYBOTRYAj SumhoUt and Soapland. 

 [Synopsis of Q-enera p. xv.] 

 Fig. 1. Portionof sterile frond of P. OSMTTHDAOEA, S'.S.X,(n.s.) 



2. Segment of the same, enlarged. 



3. Portion of the fertile frond of the same (n. 3.) 



4. One of the lobes of the fertile frond enlarged, and 



showing its under surface. 



6. Another lobe showing the upper surface. 



6. Spore-case. 



7. Spores. 



8. Fragment of fertile frond of P. apiifoliAj J. 8m. 



9. The same, showing its upper surface. 



♦#* The figures throughout marked (n. s.) are natural size; the rest 

 are move or less enlarged. 



