437 



plurilocular sporangia, hitherto unknown in this species, which 

 were also immersed, but were quite different in form from those 

 of P. latifolia. ()n tbe other hånd, some quite small specimens, 

 which occurred among tbe sporangia-bearing piants, and which, like 

 tbese grew epipbytic on Halidrys, were pronounced by Kuekuck 

 to be unquestionably Punctaria plantaginea, tbe young piants of tbe 

 latter species having marginal bairs and closely resembling a Des- 

 motrichum undulatum. 



I have furlber referred to P. latifolia tbe P. plantaginea of my 

 preliminary list, which is by the way wrongly reported from Thors- 

 bavn it having been found in Kalbakfjord. On closer examination 

 of the few dried specimens which were all I collected there, the 

 thailus proved to be composed of two lavers of cells only, and tbey 

 agreed altogether well with Thuret et Bornet's figure, 1. c. Lastly, 

 a specimen of the P. plantaginea mentioned by Si m mon s (1. c. 

 p. 270) of which be kindly sent me an example, on being examined 

 more closely also proved to agree fairly well with P. latifolia, amongst 

 other things in the faet of its thailus containing two lavers of cells, 

 but the specimen in question is unfortunately sterile. I also showed 

 Dr. Kuekuck this specimen which he pronounced to be undoub- 

 tedly P. latifolia. 



f. angustifolia Kiitz., Tab. phyc, Vol. 6, tab. 45. 



Some specimens gathered by Ostenfeld from Trangisvaagfjord 

 and by myself epiphytic on Laminaria near Arge, I have referred 

 to what Kiitzing (1. c.) calls Punctaria angustifolia. One of the 

 specimens bore quantities of sporangia, a transverse section of 

 which showed that they had exactly tbe same form as those in 

 Kiitzings fig. (1. c). The form of tbe plant also agreed well with 

 Kiitzing's habit illustration. 



Judging from its known habitats, P. latifolia occurs along the Fær- 

 oese coasts in sheltered situations epiphytic on larger algæ, e. g. Laminaria 

 and Halidrys, and at no great depth. Fructifying specimens were found 

 in May only. 



Found hitherto in the following piaces: — Ost.: Glibre {!); Str. : 

 Kalbakfjord (!) ; Syd. : Trangisvaagfjord Si m mons, 1. c. mentions having 

 found it abundantly on Laminaria saccharina and L. hyperborea ; f. <ui- 

 gustifolia bas been found on Str.: Arge (!); Syd.: Trangisvaagfjord 

 (Ostenfeld). 



123. P. plantaginea (Roth) Grev. Kjellm., N. I., p. 323 (260). 

 Found hitherto only in sheltered localities in the interior of 

 fjords, or in the narrow sounds in which it occurs in tbe sublittoral 



28* 



