M. Foslie. Contribution II, 



49 



with tetrasporangia in the later half of July. I have not 

 noted anything as to the habitat, but they probably have 

 grown on the stem of Laminaria in the up per part of the 

 sublitoral zone. 



W i 1 d e m a nia miniata (Ag.) nob. 



Diva purpurea p miniata Ag. Syn. Alg. p. 42. 





Syn. Diploderma miniatum Kjellm. N. Ish. Algfl. p. 237 Ofr. I)e- 

 Toni in Nuov. Notarisia 1890, p. 143; Fosl. Contrib. I, p. 57. 



Since I published my Contribution I I have met with 

 forms of Wilthmania which connect W. miniata and W. am- 

 plissima (Diploderma amplissimiim Kjellm. 1. c. p. 236) and 

 consequently the latter, as the younger, may not be regar- 

 ded as more than a form of the former. I am, however, un- 

 certain whether the form that I 1. c. p. 56 have called W. 

 (D.) amplissima f. planiuscula is to be regarded as a tran&ii 

 tion to the typical form of W. miniata, though most nearly 

 related to f. amplissima, or it is so independent that it can 

 be maintained as a southern form of the species. 



Goniotrichum elegans (Chauv.) Le Jol. 



Liste Alg. Clierb. p. 103; Bangia elegans Chauv. Morn. soc. Linn. 

 Norm. VI, p. 13. 



Deser. Goniotrichum elegans Hauek, Meeresalg. p. 518. 

 Fig. Goniotrichum olegans Hauck, Meeresalg. fig. 233. 



Bangia elegans Harv. Phyc. Brit. pl. 233. 



* 



This plant I have collected together with Antithamni- 

 on plumula at Akero (Hvaloerne) on a depth of 3 — 5 fathoms. 



* 



Dictyota dichotoma (Huds.) Lamour. 



Ess. p. 58 ; Ulva dichotoma Huds. Fl. Angl. p. 47G. 

 Descr. et Fig. Dictyotata dichotoma Harv. Phyc. Brit pl. 103. 



This species is not recorded in Kjellmans Handbok 

 1 Skandinaviens hafsalgflora (1890), probably by forgetful- 

 fiess, as it is mentioncd already by Åreschoug in his 



