188 postelsia 



and brings in some plants, such as 

 Boodlea coacta and Microdictyon. 



3. From the southern end of Ki- 

 ushu island to Formosa. 



Several tropical types of Caulerpa, 

 Galaxaura, Liagora and Acetabularia, 

 besides Ulva reticulata, Halimeda tuna. 

 Ceratodictyon spongioides, Vanvoorstia 

 mirabilis, Chylospora jungermannioides, 

 Chlorodesmis comosa, Halicoryne wrightii 

 are among the principal representatives 

 of this region. 



The coast of Formosa is not yet 

 wholly studied, but a few specimens 

 have been collected during botanical ex- 

 peditions from the Imperial University 

 of Tokyo. Judging by these, and as 

 indicated in the reports of Heydrich, 

 Martens and others, it is unquestionably 

 a tropical locality. 



In this region there are no gigantic 

 forms ; Sargassum duplicatum (?) and 



