522 



As may be seen from this shorl description, the piants in 

 question agree well in their main points with Kjellman's from Fin- 

 mark, so that the same species of Derbesia has now been found 

 along the coasts of Finmark (Norway), the Shetland Islands, and 

 the Færoes. 



Lyngbye's specimen, as mentioned above, and as may be seen 



in his figure, bears frnit. The month in which it was gathered by 



Lyngbye is not known, but very probably it was August, in which 



month I found my plant with almost ripe sporangium. 



• Along the coasts of the Færoes this species has hitherto been found 

 in the following piaces: — Str. : Kvivig (Lyngbye 1 ), Hvidenæs (!). 



Order VAUCHERIACEAE. 

 VAUCHERIA D. C. 



201. V. coronata Nordst. Botan. Notiser 1879, p. 177, tab. I, 

 figs. 1—9. 



Found sometimes in sheltered piaces in Sundelaget, where it 

 occurred on low, muddy slopcs close to the sea, in large, green 

 cushion-like patches associated with Percursaria percursa and other 

 algæ; and sometimes on fairly open coast, e. g. near Gliversnæs, where 

 it formed similar low, green, cushion-like growths in rock-crevices 

 filled with mud, at a considerable height above sea-level, so that it 

 could only be reached by the spray. Specimens rieh in reproduc- 

 tive organs were found in June. 



It has hitherto been found only on Str.: norlh of Kval vig al the 

 narrow tide-way (!), Gliversnæs (!). 



It is possible that some of the Vaucheria-species mentioned in my 

 Freshwater Algæ (p. 256) may occur in piaces with brackish water. 



Order VALONIACEAE. 

 VALONIA Ginn. 



202. V. ovalis (Lyngb.) Ag. Spec. Alg., I, p. 431; Gastridium 

 ovale Lyngb., Hydrophyt., p. 72; Halicystis ovalis Aresch. Phyc, 

 scand., p. 22. 



This species has hitherto been found by Lyngbye only, who 

 writes in Hydrophyt. (1. c.) with reference to ils habitats: — »Habitat 



1 W'luii Lyngbye writes: li t ad Quivig«, then this seems to indicate thai 

 he found il in several piaces. 



