March, 1917.] K. YENDO.— NOTES ON ALGAE NEW TO JAPAN. VI. 83 



= Meristotheca papulosa J. Ag. : Herb. Agarclh. (Arabian Specimen 



only). 

 ? = Sarcodia palmata Sond. : Alg. Trop. Austr., p. 54. — De Toni: 



Syll. Alg. IV, p. 414. 

 ? = Sarcodia capensis J. Ac : Till'Alg. System. IV, p. 65. — De Toni : 



Syll. Alg. IV. p. 415. 



The present plant is frequently found cast ashore on the 

 coast about Misaki, Sagami Prov. The frond is highly vari- 

 able in its general aspect, sometimes flabellate with almost 

 parallel linear segments, sometimes palmately lobed with broad 

 ones. Numerous intermediate forms to link the extremes are 

 also met with. Very often it takes an appearance of a well- 

 grown form of Gracilaria Curtissiae, G. Textorii or another species 

 under the subgenus Podeum. But the zonate tetraspores and 

 the filamentous structure of medulla will at once tell the species. 



Careful comparisons of the specimens under 5. Montagneana 

 J. Ac. and S. ceylanica Hary. in the Agardhian Herbarium and 

 in the Herb. Trinity College, Dublin, I can not but regard them 

 to belong to one and the same species. S. palmata Sond , 

 though I have not seen its type specimen, is very likely de- 

 scribed from a dwarfed form of this plant. The cystocarps in 

 papillous processes are neither constant nor peculiar to Sonder's 

 plant. And S. capensis Ag , which is established on a frag- 

 mentary specimen, appears to me to be also a form of this 

 plant with long linear segments. It has been already noted by 

 Cotton, 1 after my observation at Lund, that the specimens 

 under Meristotheca papulosa J. AG. in the Agardhian Herbarium 

 contain at least three different species. One of them "ex litt. 

 merid. Arab." (specimen No. 34174) is undoubtedly a dwarfed 

 form of S. Montagneana J. Ac. Lastly I may mention here that 

 Gracilaria polyc&rpa J. Ag. from New Zealand has a strong 

 resemblance to a form of this species. I bit as I have not ex- 

 amined the structure of it I am not able to state any thing further. 



Locality. MisakiC) (Herb. Imper. Mus. No. L39). 



Distribution. New Zealand ; Australia ; Ceylon ; Arabia ; 

 Cape of Good I lope ? 



\) Kt-w I'.ull.tin Mi cull. Inform L01 I. tSo. 8 p 221 



