
          with Wallich's Aspidium setosum, which
 (as Thunberg's goes into Lastrea) remains  
 in Polystichum. I enclose a piece of 
 an Indian specimen compared with 
 Wallich's for your inspection. The recognition
 of Thunberg's Polypodium
 lacerum is extremely interesting.
 I am always especially glad when 
 an old plant can be thus satisfactorily 
 identified.  Athyrium cystopteroides  
 is very nearly a Lastrea, but I believe 
 you are right. Drynaria (or as I
 call it Pleopeltis) hastata includes
 Wallichs Polypodium oxylobum, which
 only differs in being sometimes rather
 larger with 3 or 4 segments on each 
 side. The same thing grows in Ceylon.
 The Polypodium (Pleopeltis) ensatum
 was before unknown to me. I 
 should hope now that Japan has
 become more accessible, we may

        