21 



| CV d) JUt, 1-3 p. 1 : Caulerpa Freycinetii var. typica f. lata 

 Weber v. Bosse, I ft, -? ft, ; jj*, J. 2-3 : fig / SM- 



si& CV |U j{g, 4-6 d|. 4 : Caulerpa Freycinetii var. de Boiyana f. 

 occidental Weber v. Bosse / f, .5 : if / $J, .6 : SB fit, ^. 



Corrigenda. 



PL. CII, Fig. 1-2 : for Plocamium abnorme H. et H, var, unci- 

 natitm read PL abnorme H. et H.f. uncinatum. 



PL. CIV : for Dictyota patens Kuetz. read Dictyota patens J. 

 Ag. 



PL. CV : for Caulerpa Freycinetii Ag. read Caulerpa Freycine- 

 tii var. typica f. lata Weber van Bosse. 



In the Icones Vol. II, No. 10, p. 184, PL. C, Fig. 7-11 I 

 published an Acetabularian plant, as a new sp. struck by its smallest 

 size, under the name of Acetabularia minutissima Okam.; but more 

 afterward I came to doubt its specific value and by closer examination 

 I found it to be identical with Acetabularia polypkysoides Crouan ; 

 and so it must be reduced to a synonym of 



ACETABULARIA POLYPHYSOIDES Crouan. 



Acetabularia polypJiysoides Crouan ; Solms. Monograph of the 

 Acetabularieae p. 29, pi. iv, figs. 2, 6 ; Howe Phycological Studies 

 IV : the genus Neomeris and notes on other Siphonales p. 92, pi. 6, f. 

 16-20, pi. 7, f. 5-9. 



Our plants (only few in number) have rather thickly encrustated 

 disk which is very shallow and though inter-radial lime-mass is shorter 



