— 11)3 — 



I'elvetia cnnaliriilatii (L.) Dec. el Tliur., SUomf. Algveg. p. 38, 



The Icelandic specimens are 2 — 8 cm. liigli, and are found both on 

 rather exposed coasts and in somewhat sheltered places. It occurs about 

 at high-water mark, often in company with Facus spiralis. Fructiferous 

 specimens have been gathered in April — Sept. The species is only met 

 with in S. and SW. Iceland, where it seems to be rather common. 



SW. I eel. Bjarnarhofn, Brimnes, Einarslon, Reykjavik, SkerjafjorOur, 

 HafnarfjcirOur ; NjarOvik (CO.). 



S. I eel. StaOur (CO.); Vestmannaeyjar. 



Asco|ihylliiin nodosum (L.) LeJol., Rosenv. Grl. Havaig. p. 832. Ozo- 

 thallia nodosa Stromf. Algveg. p. 34. 



It grows gregariously on rocks at half-tide level in the above men- 

 tioned Fucus-zone, and especially in the lower part of it. It seems to 

 prefer less exposed places, and attains a length of about 1 m. The species 

 is common along the coasts; fructiferous specimens have been gathered 

 in March — September. 



At the Botanical Museum at Copenhagen one specimen of Fucus 

 Mackaii (== Ascophyllum nodosum v. Mackaii) is preserved, which is said 

 to have been collected in Iceland, but llie collector and growing place are 

 unknown. The label is written in Schumacher's handwriting. I suppose 

 that the word Iceland on the label is a misreading for Ireland. I think 

 the specimen in question is from Ireland, as neither Stromfelt, C H. Osten- 

 feld nor I have observed this variety at the Icelandic coasts. 



Hi man til all a lorea (L.) Lyngb. 



Halidrys siliquosa (L.) Lyngb. 



Of both these species there are specimens liere in the Botanical Museum, 

 wliich according to tlie labels are said to have ])een collected in Iceland. Col- 

 lector and growing place are unknown. As they have not been found ayain iiy 

 later travellers, I doubt that the specimens in (juestion are from Iceland. 



