155 — 



inflatus in the literal region. Gathered with plurilocular sporangia in May 

 —July and with unilocular sporangia in April. 



SW. Icel. Brimnes in Snagfellsnes, ViOey. 

 S. Icel. Eyrarbakki, Vestmannaeyjar. 



Ectocarpiis coufervoides (Koth) Le Jol., Kuck. Ectoc. p. 10, Kjelhnan 

 Handbok p. 77 p. pte. ; Rosenv. Grl. Havalg. p. 883 p. pte. 



It occurs on Fucaceaj and Rhodymenia palmata in the litoral region, 

 and on species of Laminaria and Saccorhiza dermatodea in Uic suhliloral 

 region down to a depth of 5 fathoms. Gathered with plurilocular and 

 unilocular sporangia in April — September. 



Fig. 14. Ecfocarptis confervoides (Roth) Le Jol. 1". pi/gvuea (Arescli.) Kjellm. 



a (215 : 1), b (316 : 1), c (316 : 1) portions of the middle part of the erect filaments 



showing the unilocular sporangia; d (316: 1) a young erect filament with 



a terminal, unilocular sporangium. 



f. typica is the most common. 



f. pijginoea (Aresch.) Kjellm. 1. c. 



At Videy in SW. Iceland I found in a depth of 1 fathom a small 

 Ectocarpus on Laminaria, covering the lamina with a dense and low matted 

 growth. It consists of hoi'izontally creeping filaments from which the erect 

 filaments arise. The erect filaments are usually unbranched, but few and 

 short, lateral branches are not rarely found in the upper part of the 

 lilaments. The lilaments are always thickest in the middle (9 — 3G it), 



