t29 



a more or less sterile belt. The erect filaments are about 70 — 100 n 

 long and about 9 u broad. 



The plurilocular sporangia are most commonly sessile, but 

 stalked examples also occur. They are oblong-ovate, olien some- 

 what lapering towards the top, and are aboul 20 ,« thick and about 

 50 /i long. I have nol observed quite ripe or emptied sporangia, 

 nor did I come across hairs. 



This plant, which formed small, dark-hrown patches on the 

 lamina of a Laminaria, was found bearing plurilocular sporangia 

 in October. 



Found hitherto only on Str. : Kvalvig II. J.). 



MIKROSYPHAR Kuck. 



106. M. Polysiphoniæ Kuck., Bedrage zur Kenntnis d. Meeres- 

 algen. 3. Die Gattung Mikrosyphar Kuckuck mit Taf. IX und X 

 (Aus d. Biol. Anstalt auf Helgoland. 1897). 



Found endophytic in Polysiphonia urceolata and Callithamnion 

 scopulornm which grew between tide-marks as well as in the sub- 

 littoral zone in more shallow water. 



Sporangia-bearing specimens were observed in June. 



Ost.: Ore(!); Str.: Hojvig ! , Kvivig (!). 



It has been met with in a few piaces only, but is doubtless ratber 

 widely distributed. 



107. M. Zosteræ Kuck., 1. c. p. 2,"). 



Grows on Zostera marina ^xaetly in the way as described by 

 Kuckuck amongst Diatoms on the epidermis of Zostera. It often 

 forms fairly large pseudo-parenchymatous patches such as those 

 observed by Svedelius 1 near Gotland. 



Found only on Syd.: Vaagfjord (!). 



SORAPION Kuckuck. 



108. S. Kjellmani (Wille) Rosenv., Deuxiéme Mémoire sur les 

 Algues marines du Groenland, p. 95; Lithoderma Kjellmani Wille, 

 Wille og Kolderup Rosenvinge, Alger fra Novaia-Zemlia og Kara- 

 Havet, p. 11 (89). 



A small, brown crustaceous alga, which was found on a Cha>- 

 tomorpha Melagonium gathered near Thorshavn, exaclly agreed with 

 Wille's description and ligures (1. c). It had a quite similar basal 



1 Svedelius, N.: Studier <">fver Ostersjons Hafsalgflora, p. 105. 



