HiL,xr-E,-^-J^ LE ^ - ^7 



i08 



M. Foslie, 



Descr. Sphacelaria racemosa var. arctica Eke I. c 

 Fig. „ arctica Kjellm. I. c. t, 2, fig. 4—6. 



Syn. Confcrva pennata Wg. FL Lapp. p. 512; cx parte. 



r 



According to Reinke 1. c:, it seems almost to be afact 

 that Sphacelaria arctica is identic with or so nearly related 

 to Sphacelaria racemosa that it at most may be regarded 

 as a form of the latter. 



The plant is litoral, occurring on rocks or in rock -pools 

 in the lower part of the zone, seldom epiphytic on other al- 



* 



gæ, as Bhodomcla lycopodioides, Probably it also descends 

 into the sublitoral zone. In Jnne, July and August only 

 barren specimens have been fonnd. 



Distrihntion: 



Scattered and rather scarce along the 



whole co ast. 



\ 



Sphacelaria olivacea (Dillw.) Ag. 



Spee. Alg. 2, p. 30; Conferva olivacea Billw. Brit Conf. p. 57.J 

 Beser, Sphacelaria olivacea J. G. Ag. Spee. Alg. 1, p. 30. 



Pringsh. Spliac. t. 9, fig. 1—3. 



Fig. 



Exsicc, 



w 



37 



W 



)? 



» 



W 



Traill et HolmeB Spliac. t, 2, fig, 2. 

 Aresch. Alg. Scand. exsicc. No, 410. 



Litoral, growing gregarious mostly on steep rocks and 

 often together with other algæ, as EhodocJiorton Bothii, Oalli- 

 thamnion scopuhrum, Ttilota degans and JDeUsseria alata. It 

 occurs on open as well as sheltered coasts. Specimens col- 

 lected in July and August were sterile. 



JDistrihution: 



Eather scarce along the whole coast. 



Fam. Ectocarpaceæ (Ag.) Thur. 



in Le Jol. Liste Alg. Cherb. p. 14; Ag. Syst. Alg. p. XXX, lim. mut, 



Gen. Isthmoplea Kjellm. 



Algenv. Murm. Meer. p. 30. 



Jstbmoplea sphærophora (Harv,) Kjellm 



