3°4 



F. EORGESEN 



Falkenbergia Schmitz. 



F. rufolanosa (Harv.) Schmitz. in ENGLER u. Prantl, Xatiirl. Pflanzen- 

 familien, p. 479. 



Falkenberg, P., Rhodomelaceen, p. 690. — Polysiphonia rufolanosa Harvey, 

 Marine Botany of W. Austr., no. 87 in Trans. Acad. vol. XXII; Kutzing, Tab., 

 Phycol., vol. 14, pi. 54. 



Only a few small pieces of this plant were found, too small in fact for a 

 safe determination. In their general appearance the specimens resemble the 

 figure of KUTZING; this is, however, as pointed out by FALKENBERG, not very 

 accurate. The thallus was about 40 ;x thick and the length of the cells amounts 

 to 30 a. 



On the other hand, it cannot be denied that this plant seems to concord 

 with the form of Falkenbergia Hildebrandii which I discovered in the West 

 Indies (1. c, p. 331). According to my note, these species most probably are 

 mere forms of the same species, a conclusion to which YENDO 1 also has arrived, 

 having been able to compare his plant with the original specimen in Herb. 

 Hauvey in Dublin and referring to my figures and description of the West 

 Indian plant. 



Area of distribution: Australia, Japan, Malayan Archipelago, and most 

 probably, West Indies etc. 



Fam. Delesseriaceae. 

 Nitophyllum Grev. 



N. spec. — Fig. 45. 



A small antheridial plant of a Nitophyllum 

 was found mixed up in a Galaxaara tuft. The 

 height of the whole plant found was 6 mm 

 only. It has no veins, is monostromatic and 

 belongs to the group Leptostroma of J. Agardh. 

 The growth takes place by means of a well 

 developed top-cell. 



The antheridial sori are situated in the 

 middle of leaf-like thallus-segments. They are 

 found on both sides of the thallus. 



The cells of the thallus are polygonal 

 with thick walls; their diameter is about 40 p.. 



To the group Leptostroma J. Agardh 

 refers 3 species and in »Sylloge Algarum» 

 De-Toni mentions a few additional species, 



Fig. 45. Nitophyllum spec, d" spe- ' Ybndo, Notes on Algae new to Japan, IV (Bot. 



cimen. C. ,2 /i. Mag., vol. XXX, 1 916, p. 63). 



