Hub.: Epiphytic on the frond of Cystofihyllum hakmlat- 



Yendo. Akkeshi. 



Our plants in an external appearance somewhat resemble 

 Ctiltdesme California/ 1 Rupr. i Kjellm. >Syn. C. amplissjma Setch. 

 n. sp.) illustrated in Saunders Phycological Memoirs p. 160, 

 PI. XXIX, fig. 1-3, but it differs from ours by having 

 y*>!.mg obovato-oblong fronds as illustrated in Saunders I.e. 

 instead of linear or cylindrical. Judging from Setchell's 

 Analytical Key of the species of the genus (Alg. nov. et min. 

 cogn. I) and from its point of distribution, habits etc. I think 

 the present plant may be safely referred to this species. 



PL. CLXIV, fig. 10-13. Fig. 10: fronds of Coihdesme 



V ystoseirac (Rupn.) S. and G. on Cystophytlum hakodatctisc, }, 



Fig. II : portion of longitudinal section of frond, 3 i' :i . 



Fig. 12 : longitudinal section viewed from the inside of frond, 



J i". Fig. 13: cross-section of frond bearing sporangia, ? -f 3 . 



Coilodesme Stroemf. 1886. 



& f Jt. < h m- 

 ENCCELIACEAE. Jt, ( b Oj i> ft. 



ftl- <S#^X-r^ y KJK,^^.ffl^* ^ &i 7 .tr. 



mm a y BK , 



)j n /h i- 5 ; ft m ^ % & j v 



' f.!fl M 3 y $; ? .fB^* v * -^jftt. y.fti * & v ,v ^ -i 7 jtfc M 



