38 SEAWEEDS 



BERTHOLD, G. Die Bangiaceen des Golfes von Neapel (ZooL 

 Stat. Naples, 1882). 



Cyanophycece. 



BORNET, ED., and FLAHAULT, CH. Revision des Nostocac^es 

 he'teYocyste'es (Ann. Sci. Nat. Bot. ser. vii. vols. 3, 4, 5, and 7). 



GOMONT, M. Monographic des Oscillariees (Nostocacees homo- 

 cystees) (Ibid. vols. 15 and 16). 



ZACH ARIAS, E. Ueber die Zellen der GyanopJiyceen (Bot. Zeit. 

 1892 and 1893). 



