Contribution. I. 35 



low- water mark to a depth of 10 — 15 fathoms, or probably 

 descending farther down. In the litoral zone I have only 

 seen it in rock-pools between half tide and low-water mark. 

 In much exposed localities f. genuina and f. grandifolia are 

 vigorous and luxuriant, The former also grows in sheltered 

 places, or even in the interior of deep bays. I do not know 

 when the plant develop its reproductive organs. 



Distribution: Common and very abundant especially 

 along the unsheltered part of the coast, but also pretty plen- 

 tiful in the interior of the deep fjords. The forms valida, 

 complanata and stenophylla only found at Berlevaag; f. gran- 

 difolia at Berlevaag and Kiberg, but probably more common- 

 ly dispersed; f. ensifolia scattered and, as far as I know, rath- 

 er scarce. 



Laminaria intermedia Fosl, 



Lam. Norw. p. 81. 



f. longipes Fosl. 



1. c. p. 82. 

 JDescr. Laminaria intermedia f. longipes Fosl. 1. c. 

 Fig. „ „ „ t. 7-8 



f. cucullata (Le Jol.) Fosl. 



1. c. p. 82; Laminaria flexicaulis c. cucullata Le Jol. Exam, p, 59. 

 Descr. Laminaria intermedia f. cucullata Fosl. 1. c. p. 88. 



„ flexicaulis c. cucullata Le Jol. 1. c. 

 Fig. „ intermedia f. cucullata Fosl. 1. c. t. 9 et 1. 10, fig. 1 — 16. 



Exsiec. „ digitata b. Aresch. Alg. Scand exsicc. No. 167; part. £ 



cucullata, part. f. ovata. 



Syn. Laminaria digitata b. latifolia Aresch. Phyc. Scand. p. 344; 



excl. syn. 

 „ flexicaulis f. latilaciniata Fosl. Bidr. p. 21. 

 ,, „ subf. latifolia Aresch. Obs. Phyc. 4, p. 10 



„ digitata Kjellm. N. Ish. Algfl. p. 299; ex parte. 



„ cucullata Fosl. Bidr. p. 25. 



„ digitata b. integrifolia J. G. Ag. Lam. p. 24? 



This species is most nearly related to L. digitata^ but, 



