443 
that they were destroyed by the rough handling. I think I found 
both plurilocular and unilocular sporangia. The former (fig. 83, e, 
f, g) strikingly resemble those described by Kuckuck and occur 
in the same small, almost tuber-like protuberances which are un¬ 
doubtedly always formed by the apical cells of the filaments; the 
plurilocular sporangia appear to be able to attain to a larger size 
than stated by Kuckuck, viz. a breadth of 20—30—70 \i. With 
regard to the unilocular sporangia, I am not quite sure that they 
really are such, the cell-contents having been destroyed. What I 
have referred to them are some large cells, of which several fre¬ 
quently occurred close together on a few branches. I have shown 
them in fig. 83, h and z, and I think they agree fairly well with 
Kuckuck’s figure, and also correspond well with regard to size, 
being about 30—40 p broad. The free filaments are about 16—18^ 
broad. As I said before, I can state nothing for certain as to cell- 
contents, chromatophores, etc. (but I may point out that in some 
of the cells the chromatophores appeared to be ribbon-shaped or 
reticular, a character which distinguishes this species from the other 
hitherto-known Phceostroma-species ), nor do 1 know anything about 
the development of the plant, nor how it penetrates into the La¬ 
minaria k 
This plant has been found on Laminaria fceroensis which grew 
in shallow water. 
It bore both plurilocular and unilocular sporangia (?) in July. 
Found hitherto only on Str.: Sundene between Thorsvig and Kvalvig(!). 
Order DICTYOSIPHONACEAE. 
DICTYOSIPHON Grev. 
133. D. foeniculaceus (Huds.) Grev. Kjellm., N. I., p.333 (269); 
Scytosiphon foeniculaceus Lyngb., Hydrophyt., p. 63. 
Grows in shallow water especially in sheltered localities; occurs 
commonly as an epiphyte on Chordaria flagelliformis. 
Sporangia-bearing specimens were found in summer. 
This species for the examination of which I have not had much 
material is undoubtedly rather common along the Fseroese coasts as 
reported by Lyngbye, who writes: — »Ad insulas Fseroenses copiose«. 
1 Ph. pustulosum was found endophytic by Rosenvinge (Deux. Mem., p. 68) 
in Delamarea attenuata. 
