454 
be met with in the interior of bays and fjords. It belongs to the 
sublittoral zone but grows in shallow water. Lastly, f. grandis 
grows in the sublittoral zone most commonly in deeper water of 
some 8 to 10 fathoms and occurs both in the open sea and in the 
interior of fjords. 
Small, young examples of Laminaria saccharina , the so-called 
forma phyllitis (cfr., e. g. Kuckuck, Bemerkungen 1, p. 250) often 
occur in rock-pools. 
This species grows both on rocks and stones, and, more rarely, 
epiphytic on larger algae, e. g. Laminaria hyperborea. Fructifying 
specimens were found in June and July. The change of laminae 
probably takes place during winter as specimens found in May, 
June and July still had parts of the old lamina attached. 
This is a very common species of the Faeroese coasts. It was first 
reported by Landt, 1. c. p. 230. 
147. L. faeroensis now spec. Syn. L. longicruris de la Pyl. var. 
faeroensis Borgs., En for Faeroerne ny Laminaria (Botanisk Tids- 
skrift, Vol. 20, p. 403). 
I had previously described the present plant as a variety of 
L. longicruris , but after having examined the rich material of it 
which I gathered on my last journeys, I have no hesitation what¬ 
ever in reporting it as a distinct species, all the more as it fills a 
gap between the nearest allied Laminaria- species hitherto described, 
which in my opinion also include besides L. longicruris, L. groen- 
landica Rosenv., L. Agardhii Kjellm. and L. saccharina (L.) Lamx. 
These species and L. fceroensis resemble each other in habit; their 
stems are usually comparatively long, their laminae undivided, most 
commonly elliptic with waved margin and of a thin consistency. 
The following table illustrates the occurrence in these species of 
hollow stems and muciparous canals in the stems: — 
Hollow stem Solid stem 
With muciparous canals ... L. longicruris L. groenlandica 
Without — — . . . L. fceroensis L. Agardhii 
— — — .L. saccharina 
Thus we see that L. fceroensis resembles L. longicruris in having 
a hollow stem, but differs from it in not having muciparous canals; 
and the absence of the latter character in L. Agardhii and L. sac¬ 
charina distinguishes them from L. groenlandica , while all three 
have solid stems. 
