431 



area of several square nulres. But it mav also be mel with on 

 shellered coasls; having been found, e. g. at the head of Kalbakfjord 

 growing on stones in shallow water; according lo Kjellmans 

 report (1. c), in the Norwegian Polar Sea it grows by preference in 

 sheltered situations. 



Specimens bearing plurilocular sporangia were met with in 

 Mav and July. 



This species, which is doubtlcss widely distributed, has been found 

 at the folio wing piaces: —Vid.: rock on the north side of the island ' 

 Str. : Kalbakfjord I. common in rock-pools between Hojvig and Thors- 

 havn (!. Thorshavn Simmons, !), Myggenæs (!); Sandd: Sandsbugt (!); 

 Syd.: Kvalbo (Lyngbye, !', Vangs Ejde (!). 



The present species was already found by Lyngbye and there is 

 a specimen of it in his herbarium in Copenhagen named Zonaria deusta. 

 It was gathered by Lyngbye »ad s;ixa maritima littns Qualboe« on July 

 15th 1817. Il has unilocular sporangia. In Hydrophyt. 1. c. p. 19 

 Lyngbye mentions Zonaria deusta, but does not report it from the 

 Færoes. 



On a stone near Glibre in Skaalefjord Helgi Jonsson gathered 

 a Ralfsia, which appears to come very near the one mentioned 

 by Kuckuck in »Bemerk ungen«, I, p. 241. The specimens in 

 questions — two in number — had a smooth, shiny, yellowish- 

 brown, marginal area, and a darker, more rough central area, in 

 which dark, radiating stripes could distinctly be traced. Even 

 when micro scopically examined it closely resembled Kuckuck's 

 plant; the margin of the thailus in the Færoese examples being 

 decidedly arched just as described and figured by Kuckuck, 

 though the cuticula was somewhat thinner in the Færoese spe- 

 cimens. With reference to the arched margin Kuckuck (1. c. p. 242) 

 writes: — »Jedoch scheint es gestaltet, die starke Wolbung mit 

 einer Neigung zum bilateral-symmetrischen Bau der Ralfsia deusta 

 in Zusammenhang zu bringen«. It was consequently interesting 

 that the thailus in the Færoese examples now and then showed 

 signs of being bilateral, small portions occurring, here and there, 

 in which downward-turned filaments as well could distinctly be 

 observed, in contradistinction to Ihe majority of the filaments 

 which turn upwards as in Kuckuck's fig. 6, though these down- 

 ward filaments were far from being as distinet as those in the 

 specimen described and figured by Batters in »Marine Algæ of 

 Berwick-on-Tweed«, p. 66 (286), tab. X, lig. 8. I did not come across 

 any hairs. Here and there, where the thailus were not closely pres- 

 sed against the stone there occurred numerous. strongly interlaced 



