﻿in the disposition of " Langtriebe," from which both kinds of 

 fruits are developed, while in the present plant they are formed 

 from " Kurztriebe." 



Plate IV. Fig. I : fronds creeping on Amphiroa, や. 一 Fig. 

 2 : frond magnified, や 一 Fig. 3 : portion of frond more highly 

 magnined, a、 leaf showing an abnormity. ― Fig. 4 ： leaf, ^. 一 

 Fig. 5 : a of Fig. 3 magnified, ― Fig. 6 : cross section of 

 stem, ~ Q . — Fig. 7 : cross section of leaf, ザ. 一 Fig. 8 : root, -f. 

 — Fig. g : two " KurztneDe " developed tetraspores, -^. 一 Fig. 

 10 ： two young cystocarps formed on " Kurztriebe," や. 一 Fig. 

 II: Kurztrieb producing a procarp ； a, the original apex, ^-. ― 

 Fig. 12: cystocarp ザ； a, the original apex of a " Kurztrieb ；" 

 b, the secondary prominence. 



