427 



Gliederzellen in Sporangien um«. Thus, according lo Reinke this 

 variety has properly speaking no erect filaments, they being 

 all transformed into sporangia, and I have noticed thc same to 

 be the case in the Færoese specimens. On this point Sau- 

 vageau (1. c. p. 10) appears to have mis- 

 understood Reinke 's description, and if 

 we l'ollow the view of Kuckuck, who 

 regards the absence of erect filaments as 

 a characteristic mark of the genus Phy- 

 cocelis, then M. foecundum onght to be re- 

 garded as a typical Plujcocelis, but I think 

 with Sauvageau that these two genera 

 can practically hardly be kept distinct. 



Fig. 81 represents some fragments of 

 this plant. The plurilocular sporangia are 

 about 8 — 9 n broad. 



It bore plurilocular sporangia in May. 



Found hitherto only on Str. : Thors- 

 havn (!). 



104. M. æcidioides (Rosenv.) Sauvageau, Myrionémacées, pp. 15 

 — 17; Ectocarpus (Streblonema) æcidioides Rosenv., Grønl. Havalg., 

 p. 894; Phycocelis æcidioides Kuckuck, Bemerkungen z. mar. Algen- 

 veget, von Helgoland, 1894, p. 234. 



Found in the lamina of Laminaria færoensis, and agrees fairlv 

 well with Rosenvinge's description and tigure (1. c.) as also with 

 Kuckuck's (1. c). The Færoese specimens come near the Greenland 

 and Heligoland specimens in not having the vertical, vegetative, 

 assimilative filaments described by Foslie (New or critical Norw. 

 Alg., p. 24). 



Plurilocular sporangia were met with in abundance, and in a 

 vigorously developed plant there occurred just a few unilocular 

 sporangia of the same form as those ligured by Rosen vinge. 



Sporangiferous specimens were observed in October. 



Found hitherto only in the following piaces: — Ost.: Skaalefjord 

 (H. J.); Str.: Kvalvig (H. J.). If searched for more closely it will doubt- 

 less prove to he commonly distributed. 



Fig.81 Mgrionema foecundum (StrOmf, 

 Sauvag. a part of the plant with 

 plurilocular sporangia; b part ol" the 

 plant with a hair. a 300: 1 ; b 200: 1. 



CHILIONEMA Sauvag. 

 105. Ch. spec. 



A small plant of the Myrionemaceae occurred on the lamina of 



a Laminaria gathered by H.Jonsson, with reference to which Prof. 



