Notes on Al^ae New to Japan. IV. 



By 

 Kicliisiihuro Vcinlo. 



Boodlea composita Brand. 



Bdheftc z. Bot. Ccntrnlhl.. Bcl.18, Aht. 1. Iloft 2, 1905— Rrin- 

 BOLi) : in Weber van Bosse: Listc des Aljjjiics dii Siboga Expcd. 

 I, p. 71. 



= Cladophora composita Harv. mscr. in Jonrn. Bot. 1, p. 157. 

 = Cladopbora composita H. ct H., Piccone : Alg. Vettor Pisani, 



p. 27.— De Toni : Syll. Alg. I. p. 347. 

 = Aeg-agropila composita KiJTZ. Tah. Phyc. IV, Taf. 07, fig. B. 



In the Herbarium of the Trinity College, Dublin, there are 

 two specimens collected by C. Wright in Loochoo and deter- 

 mined by Haryey as Cladophora composita TIary. Major 

 ReinboTvD studied all the specimens under C. composita Hary. 

 in the Herbarium, and separated them into three species, Bood- 

 lea siamensis Reinb, (Friendly Island epecimens), B. coacta 

 MuRR. et De Toni (Loochoo specimens), and B. composita 

 Brand (Mauritius specimens). I also examined them and ^vas 

 fully convinced by Reinbold's determination. One of the 

 Loochoo specimens, however, is undoubtedly a Cladophora, 

 exact specific name of which I could not make out satisfactorily. 



A specimen collected by Mr. S. Narita at Shinojima, 

 Mikawa Prov. and sent to me for determination, revealed all 

 characters of the present species. The chloroplasts agree pretty 

 well in the network arrangement with B. siamensis Reinb. *^ 

 But in the younger cells they are generally much more longi- 



1) P.oROKSRx: Tlie Mar". Alsr. of Danish West In.lios, I'art I, CliUiropliye. 

 p. 50, fig. 36. 



