370 
sometimes deeply sinuate. The greater part of the specimens col¬ 
lected belongs to f. typica; f. lingulata was met with in several of 
the fjords, and specimens from quiet waters were on the whole 
inclined to be prolific. A few of the specimens approached 
f. quercifolia. 
It is sublittoral, and while it occurs at the waters edge in 
caves and ravines during ebb-tide, it also grows luxuriantly at a 
depth of 25 fathoms. It is met with both in exposed and sheltered 
localities, and is common on rocky and stony bottoms as well as 
epiphytic on Laminaria- species, especially L. hyperborea . % 
The plant seems to be able to form new shoots all the year 
round, but most abundantly during spring. Young plants have 
been gathered in December. 
Tetrasporic plants were found in May, June, July, August, 
October, November and December and were common altogether, 
while those bearing cystocarps were rarer, and were found only in 
May, July (a specimen in Lyngbye’s Herbarium) and November. 
This corresponds to Kje liman’s (1. c. p. 177 [138]) statement that 
this species appears to bear reproductive organs all the year round. 
This species is very common as already mentioned by Lyngbye 
(1. c. p. 8): — »Ad stipitem Laminarise digitatse ad littora Feeroensia 
copiose«. 
35. D. sanguinea (L.) Lam. Hydrolapathum sanguineum (L.) 
Stackli. Kjellm., N. I., p. 184 (143); Delesseria sanguinea Lyngb., 
1. c. p. 7. 
Generally found growing in the sublittoral zone, but is also 
met with in the littoral in caves and grottoes at extreme low-water 
mark where it may be left uncovered for a shorter time by the 
spring tide, and in such a case in exposed places the leaves are 
often considerably torn. It is one of the algae which occurs at the 
greatest depths; thus I have gathered specimens from a depth of 
25 fathoms — consequently, from Kj ell man’s »elittoral« zone. 
It is a common epiphyte especially on Laminaria hyperborea , 
but also grows frequently on rocky, stony and shelly bottoms. 
Found on exposed as well as sheltered shores. 
Judging from the material in hand the plant appears to give 
out new shoots early in spring, vigorous plants being collected late 
in April while in those gathered late in October the branches were 
more or less naked. Almost all the specimens I had for examination 
were sterile. A single specimen collected late in October in Kvanne- 
