62 



M, Foslie 



Fig, Bangia crispa Lyngb. 1. c. t, 24. 



Exsicc, 



» 



n 



n 



» 



Kutz. Tab. Phyc. 3, t. 28. 



Aresch. Alg. Scand. exsicc. Nr. 18. 



By the kindness of J. G, Ag ar dh I have had the op- 

 portunity of examining an authentic speoimen o£ this species 

 from Bohuslån. The rinmarkian specimens coincide fuUy 

 with that one, only smaller and a little thinner. Among the 

 quoted figures it most nearly resembles K ti t z i n g's 5. crispa 

 Tab. Phyc. 3, t. 28, fig. a. • 



The plant is litoral, occurring on rocks near high-water 

 mark, on exposed coast, together with Cahthrix scopulorum, 



Distribution: Only found at Kjelmo in Sydvaranger, 



rare. 



Bangia virescens nob. 



B. rupicola, luteo-virens; fllis cylindraceis, simplicibiis articulatis, 

 12—30 p. crasBis, dense intricatis atque crispis, arcticulis æqualibus ad 

 triplo brevioribus. Tab. 2, fig. 2—9. 



The species forms rather thick, uniform and sometimes 

 extensive strata on rocks between tides, mostly at high-water 

 mark in exposed localities. The surface is a little rough or 

 undulate-lacunosed. It has a yellow-green colonr, and its habit 

 is rather that of an Urospora than a Bangia. It also some- 

 times grows alternating or mixed with Urospora pcniciUifor' 

 mis. The thickness of the threads varies between 12 and 

 30 [X, most commonly about 20. They are so densely inter- 

 woven that pretty large parts of the layer may be easely 

 removed from the rock with a knife. 



The plant seems to be dioecious. But I ara uncertain 

 whether the organs figured on t. 2, fig. 7 — 9 really are sporo- 

 carps and antheridia. It has been collected with these organs 

 at East Finmarken in July and at West- Finmarken at the 

 end of May. It seems to disappear in August 



Distribution;, Pretty common and rather plentiful almost 



all along the unsheltered part of the coast. I, have seen it 



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