438 
zone, but in shallow water. I have usually found it growing at¬ 
tached to stones and once only as an epiphyte (cfr. P. latifolia). 
I came across large vigorous examples bearing sporangia in 
June and July. 
Found in the following places: — Str.: Sundene between Thorsvig 
and Kvalvig(l); Ost.: Glibre (!). 
DESMOTRICHUM Kiitz. 
124. D. undulatum (J. Ag.) Reinke, Algenflora, p. 55; Atlas, p. 15, 
tab. 11. 
Once only in June some small specimens were found, but 
they bore quantities of plurilocular sporangia and agreed exactly 
with Reinke’s description and figures. They grew in shallow water 
and were gathered together with Cystoclonium purpurascens amongst 
which alga I first found it on examining the material more closely 
here in Copenhagen, so I cannot say to what substratum it grew 
attached. 
Str.: Sundene between Thorsvig and Kvalvig (!). 
PHYLLITIS Kiitz. 
125. Ph. fascia (O. F. Mull.) Kiitz. Ilea fascia Fr., Kjellm., N. I., 
p. 319 (257); Ulva fascia Lyngb., Hydrophyt., p. 28. 
Occurs in the littoral zone, especially on the open sea-shore, 
but also in sheltered situations. It grows both in places where it 
is left dry at ebb-tide and in rock-pools. It is usually found at¬ 
tached to rocks and stones but also occurs, though rarely, as an 
epiphyte, e. g. on Himanthalia lorea. In Kalbakfjord it grew at the 
mouth of a stream where the water was occasionally quite fresh. 
Fructifying specimens were found in April, May, June, July and 
November. According to Reinke (Algenflora westl. Ostsee, pp. 61— 2) 
this species is a winter and spring plant in the western part of the 
Raltic; judging from the material I have had for examination it is 
met with all the year round around the Faeroes, where at any rate 
it occurred abundantly during summer. 
This species is common, especially along the exposed coasts of 
the Faeroes. 
126. Ph. zosterifolia Reinke, Algenflora westl. Ostsee, p. 61. 
This alga which is doubtless rather rare along the Faeroes was 
found both on exposed coast and in somewhat sheltered localities; 
