369 
Some precisely similar specimens in my herbarium collected 
by Lange near Malaga were referred to this species by J. Agardh, 
who has determined Lange’s collections of Algae from Spain. 
The Faeroese specimens were small, at the most a few cm. in 
circumference, and sterile. 
Found only on S t r.: Kvivig (!). 
DELESSERIA Lamour. 
33. D. alata (Huds.) Lamour. Kjellm., N. I. p. 172 (134); Lyngb., 
1. c. p. 8. 
There occurs along the coasts of the Faeroes both a rather broad 
form and a more narrow form like le Jolis’s no. 245, but they 
merge into one another by a series of very closely connected inter¬ 
mediate forms. 1 have not seen specimens referable to D. angu- 
stissima. 
This species generally occurs in the sublittoral zone, but is 
also common near low-water mark, especially in rock clefts and 
in caves, where it may often he seen at ebb-tide forming extensive 
coverings on the rocks. It is also met with here and there in 
tide-pools at low-levels. Between tide-marks the specimens are 
small, only a few centimetres high, as K jell man (1. c.) says is the 
case also with those growing in similar localities in the north of 
Norway; but in the sublittoral zone they are much larger, up to 
about 20 centimetres long. 
It grows both in exposed and sheltered localities on rocky 
and stony bottoms as well as epiphytic especially on Laminaria 
hgperborea. 
Tetraspore-bearing specimens occurred in April, May and Oc¬ 
tober, and cystocarpic in May, June, July (a specimen in Lyng- 
bye’s Herbarium), October and November. Kjellm an has not 
found fruit-bearing plants in the Arctic regions, but says that in 
Sweden the plants bear tetraspores during winter (December and 
January); and Areschoug says that it bears fruit in Bohuslan in 
March and April. 
This species is very common along the Faeroese coasts as already 
noted by Lyngbye (l.c. p.8), who writes: — »ad littora Fseroensia copiose«. 
It was first recorded by Landt, l.c. p. 231. 
34. D. sinuosa (Good, et Woodw.) Lamour. Kjellm., N. I., p. 175 
(136); Lyngb., l.c. p. 7. 
A variable plant, the leaves being sometimes almost entire, 
