790 



indebted to Kleen (51); but Kj ell man (48) has furnished us with 

 important information. We know 123 species of Rhodophijcece and 

 Phwophijcece together with about 20 Chlorophijcece from Nordland, 

 that is very nearly 150 species. 113 of these species are also 

 found at the Faeroes, that is, 75 Vo of the species of Nordland and 

 52. 8 ^/o of the Faeroese species. Nordland has 123 red and brown 

 algae, 95 of these are also found at the Faeroes, that is, 61 *^/o of 

 the Faeroese algae of these groups. The 28 species which are found 

 at Nordland but not at the Faeroes are the following: Tiirnerella 

 Pennyi(A)^, Brongniartella bijssoides (E i), Spermothamnion Turner! (D), 

 Callithamnion Hookeri (D), Callithamnion roseiim (D), Ceramium Des- 

 longchampsii (D), C. circinnatum (D), C. diaphaniim (D), Dilsea edulis 

 (D), Petrocelis cruenta (D), IJthothamnion intermedium (D), L. forni- 

 catum (D), L. tophiforme (B i), L. norvegicum (D), Ralfsia deusta (B i), 

 Ectocarpus Turnerella' (D), E. terminalis (D), E. borealis (D), E. ovatus 

 (B i), E. penicillatus (D), E. draparnaldioides (D), Myriotrichia fdiformis 

 (D), Sphacelaria racemosa (Bi), Mesogloia vermicularis (D), Sperma- 

 tochnus paradoxus (D), Cutleria multifida (E i), Fucus ceranoides (D), 

 F. serratus (D). With the exception of some few warm-boreal spe- 

 cies (El), the greater part of these algae belong to the cold-boreal 

 group (D); we are therefore justified in expecting that some of them 

 ma}^ perhaps be found at the Faeroes; the other species are arctic 

 or subarctic, and can scarcely be expected there. 



On the other hand, the following 60 species are found at the 

 Faeroes: Porphyra leucostida, P. coccinea, Conchocelis rosea, Chan- 

 transia Alaria^, Ch. efftorescens, Ch. virgatula, Choreocolax Polysipho- 

 nia% Harveyella mirabilis, Phyllophora Brodicei, Actinococcus subcu- 

 taneus, Callophyllis laciniata, Callocolax neglecta, Sterrocolax decipiens, 

 Lomentaria rosea, Nitophyllum laceratum, Laurencia pinnatifida, Po- 

 lysiphonia airorubescens, Rhodomela subfusca, Griffithsia setacea, Cal- 

 lithamnion scopulorum, C. granulatum, Rhodochorton seiriolanum, Rh. 

 membranaceum, Rhododermis elegans, Phymatolithon la^vigatum, Li- 

 thophyllum incrusians, L. hapalidioides , Lithoderma fatiscens, Petro- 

 derma maculiforme, Sorapion Kjellmani, Ralfsia clavata, Myrionema 

 Corunnce, M. foecundum, M. globosum, M. fceroense, M. speciosum, Mi- 

 crosyphar Polysiphonice , M. Zosterw, Ectocarpus cecidioides, E. Stilo- 

 phorce, E. velutinus, E. lucifugus, E. tomentosoides, E. dasycarpus, E. 

 granulosus, E. Hincksice, Leptonema fasciculatum, Elachista scutulata, 

 Sphacelaria britannica, Sph. ccespitula, Sph. furcigera, Sph. cirrosa, 



^ For explanation of the letters see: Borgesen and Jonsson (12, p. XV — XXI). 



