PLATE XXXIX. 



A rhizome and young frond, and the greater portion of a fully developed frond of 



Ncphrudium aquilinum, natural size. 



Figure 1. — An ultimate segment seen from above. 



,, 2. — An ultimate segment seen from below. 



,, 3. — Asorus: all enlarged. 



The drawing of the rhizome and young frond is from a specimen in Kew Herbarium 

 collected by Mr Moseley, and the fully developed frond from a specimen collected by 

 Carmichael, and bearing his manuscript name of Polypodium acunhianum: both from 

 Tristan da Cunha. 



