199 



and at the base ol' the filaments rhizoids occurred ns in Wille's 

 fig. 10 (1. c); bul I had onlv dried material for exaraination. 



Tbis species grew on stones between tide-marks in sheltered 

 localities, associated wilb Codiolum gregarium. 



Found hitherto only on Syd.: Trangisvaag (II. J.). 



Order CHAETOPHORACEAE. 

 ACROCHÆTE Pringsh. 



173. A. repens Pringsh. Beitråge zur Morphologie der Meeres- 

 Algen, p. 326, tab. 19; Huber, Contributions å la connaissanee des 

 Chætophorées, p. 306. 



Found in old Chorda filum gathered in October; the speci- 

 tnens bad sporangia. 



Found hitherto onlv on Ost.: Skaalefjord (H. .1.); and Str.: Kval- 

 vig (II. J.). 



BOLBOCOLEON Pringsh. 



174. B. piliferum Pringsh. Beitråge zur Morphologie der Meeres- 

 Algen, p. 324, tab. 18; Huber, Contributions a la connaissanee des 

 Chætophorées, p. 308, pi. 13, figs. 8—12. 



Found in a few instances in June and July creeping between 



the cortical cells of Phyllitis Fascia and Scytosiphon lomentarius. 



Found hitherto only on Myggenæs !); and Str.: Sundelaget be- 

 tween Thorsvig and Kvalvig (!). 



EXDODERMA Lagerh. 



175. E. Wittrockii (Wille) Lagerh. Bidrag til Sveriges Algflora 

 (Ofversigt af K. Vetensk.-Akad. Forh. Stockholm 1883, N° 2); Ento- 

 cladia Wittrockii Wille, Om en ny endoph. Alge (Christiania Vidensk. 

 Selsk. Forh. 1880, N" 4). 



Found growing in the cell-walls of dilVerent brown algæ. 



Found hitherto onlv in the following piaces: Svind (in Elachista 

 scutulata gathered by II. . I): Bordd: Klaksvig (in Elachista fucicola ga- 

 thered by II. .I): Ost.: Ejde in Elachista fucicola]); Sir.: Kvivig in 

 Sphacelaria!), Velbestad (in Elachista fucicolat). 



Botany of the Færdes. 32 



