XIII 



" Onlj' found washed ashore in Spitzbergen. 



•- As several writers have indicated different species as P. piilvinata, we do 

 not Ivnow what is meant by P. piilvinata Boye (7). We have therefore not men- 

 tioned it in our list. 



*^ Rhodomela virgata appears to belong to this species. 



" Including Rhodochorton parasiticiim Batt. and Rh. sparsum (Carm.) KjeUm. 



'* Chilionema s\). in Borgesens flora (8) is, we think, referable to this species. 



'" Mr. F'oslie has kindly informed us that Ectocarpns obovatus Fosl. is a 

 form of Ectocarpus littoralis. 



According to the original specimens Ectocarpus Landsburghii Fosl. is identical 

 with Ectocarpus littoralis var. varia (Kjellm.). 



^" Having examined the original specimens of Ectocarpus Hansteenii ^^'e are 

 of opinion that this species belongs to E. siliculosus. 



*^ We have followed J. Agardh (Till Algernes Systematik, IV p. 15) in refer- 

 ring Elachista Grevillei Harv. to E. fucicola. 



^^ Including Punctaria tenuissima Grev. 



-" To this species we refer both Ph. æqiialc (Oltm.) Kiick. and Ph. prostratum 

 (Gran) Kuck. 



^^ According to an original specimen in the Botanical Museum at Copenhagen 

 Coilonema filiforme Fosl. is identical with Scytosiphon lomentarius. Chordaria atte- 

 nuata Fosl. referred by Foslie to the genus Scytosiphon (p. 97 footnote) has also 

 proved to be Scytosiphon lomentarius. 



-* Mr. Foslie has informed us that the material of Gobia baltica from Fin- 

 mark is in too bad a condition to be determined. 



*^ As Leathesia crispa Harv. is insufficiently known we have not mentioned 

 it in the list. (Cfr. J. Agardh, Till Allgernes Systematik. IV, p. 40). 



^* The specimens of Laminaria Agardhii from Rhode Island in Phyc. Bor. 

 Am. Nr. 1083—1084 are too young to be determined. 



^^ We think that Laminaria caperata from the coast of New England most pro- 

 bably belongs to L. groenlandica. 



*^ We are indebted to Mr Foslie for having given us an opportunity of exami- 

 ning an original specimen of Laminaria Giinneri Fosl. The specimen in question 

 however proved to be identical with L. nigripes /? atrofiilva. We have moreover re- 

 ceived from Mr. Foslie eight undetermined specimens of a Laminaria washed 

 ashore at Berlevaag in East-Finmark. These specimens were gathered in Febru- 

 ary — March and had welldeveloped sorus in the lower part of the Lamina. The 

 greater part of the specimens had fuUy typical muciparous canals in the stipe but 

 only a few of them were destitute of the canals. These specimens also agree very 

 well with L. nigripes and thus it seems to us, that Foslie is not right in think- 

 ing that the Norwegian specimens are different from the Spitzbergan ones (cfr. 

 Foslie, p. 59), nor Kjell man in omitting this species in his »Handbok i Skandi- 

 naviens hafsalgflora«. 



*' Scaphospora arctica Kjellm. belongs without doubt to Haplospora globosa 

 Kjellm. 



*^ We refer Ascophyllum Mackaii as a variety to A. nodosum. 



