x _^ — t- "i^ 



!= Iz^ 



/^ 



-■ * 







Coutribution. I. 



49 



f. globosa Kjellm. 



N. Isli. Algfl. p. 232. 



Descr, Rhodochorton Botlui f. glol)osa Kjelim. 1. c. 



Fig, 



?T 



ff 



W ' 



?J 



„ t. 15, fig. 9—13, 



Syn. Callithamiiion llotliii Lyiigb. Hydr. Dan. p. 121, t 41 Å, 



» 



n 



floriduluni Lyngb. 1. c. p- 12J, t, 41 D. 



T) 



Sommcrf. Supp]. p. 193. 



„ "Rotliii Soranicrf. SuppL p. 193 et in Act Mi- 



dros. r- 5^- 



^ 



Litoral and sublitoral. AVitliin the litoral zone the ty- 

 pical form occurs on rocks, forming more or less dense mats 

 often together with Sphacelaria oUvacea. Within the sublito- 

 ral zone it is met with on a depth of 3 — 8 fathoms, abtached 

 to Liihofkamnia, Laminaria and other algæ. It appears on 

 open coast as well as in sheltered places, and sometimes 

 gregarious in considerable abundance. The form globosa has 

 been fonnd on rocks within the litoral zone, and fasfcenedto 



f 



Lithothamuia within the sublitoral zone, on open coast. I 

 have sometimes met with a form reminding of Rh^ intcrmo 

 dium Kjellm., with the cells 5—8 times the diameter, but 

 sterile. Specimens with young tetrasporangia have been col- 

 lected at the end of June, and at West-Pinmarken ripe ones 

 at the end of September. 



Distribution: Commonly distributed along the whole 

 coast; at some places, as Sværholt, Berlevaag and Vardo, 

 abundant but local; f. globosa found at Sværholt and Vardo. 



L 



Rhodochorton (?) s p a r s n m (Garm.) Kjellm. 



N. lyh. Algfl. p. 234; Callitliamnion sparsum Carm. in Hook. Brit. 



h\ p. 348. 



Beser. Callitliamnion Bparsum J. G. Ag. Epicr. p. 14. 



v 



Fig. 



n 



» 



Harv. riiyc. Brit. t. 207. 



Syn. Thamnidium sparyum Kleenj Kordl. Alg. p. 23. 



Sublitoral, found on decaying stems of Laminaria hy- 



pcrhorea. 



4 



hi 



n 



\'i 



^-j 



