460 
varies considerably according to its habitat, are to be distinguished 
in the Fseroes. 
The forms referred to f. genuina somewhat resemble the figure 
in the centre of fig. 88 which is taken from a small example, but 
they are generally a little broader and have often a cordate base. 
Some of the specimens had the upper part of the stem compressed 
and consequently agreed with Kj ell man’s f. complanata. But in 
the Faeroes I have not come across specimens precisely similar 
to Foslie’s figures of f. typica in »Ueber die Laminarien Nor- 
wegens« pi. 4 and 5, fig. 1, the stems of the Faeroese specimens 
especially being much shorter. To show the dimensions in f. ge¬ 
nuina I give the following measurements: — 
Total length Length of stem Length of lamina Breadth of lamina 
157 cm. 52 cm. 105 cm. 50 cm. 
200 cm. 25 cm. 175 cm. 55 cm. 
Some of the specimens referred to f. stenophylla were precisely 
similar to Harvey’s above-mentioned figure, and bad the lamina 
divided into 2—3 segments only; others had the lamina split into 
many quite narrow segments (see the two outside specimens in 
fig. 88) thus agreeing most closely with Kjellman’s f. cuneata (Handb., 
p. 23). The Faeroese specimens of this form were comparatively 
small, those figured being, e. g. some 50 cm. long. 
The specimens referred to f. cucuUata are noteworthy by their 
lamina being more or less cucullate and being either divided into 
only a few broad segments or being entirely whole; the lamina is 
frequently very irregularly folded and waved, but in young specimens 
it is sometimes almost smooth like Le Jolis’s f. ovata. Such a young 
specimen is distributed in Aresclioug’s Alg. scand. No. 167. Thelength 
of the stipe also varies considerably, being sometimes short, some¬ 
times long even longer than the lamina (f. longipes). In the Faeroes 
I found specimens precisely similar to those figured by Foslie (1. c.). 
Forma stenophylla is generally met with in the littoral zone 
and occurs on open sea-shores even in the most exposed situations. 
Forma genuina grows in more sheltered localities in the sublittoral 
zone or near extreme low-water mark. Forma cucullata occurs in 
the sublittoral zone in the interior of fjords and is particularly 
well-developed in places where the water is almost stagnant. F. 
stenophylla and f. genuina generally grow on rocky bottoms; f. cu¬ 
cullata especially on stony bottoms. 
