THE MARINE ALG# OF THE SHETLANDS 305 
re nt a divaricata J. Ag. (Mesogloia Hudsoni E.). 
ocolax polysiphonie Reinsch.—Parasitic on Polysipkonié 
fastigiata: Bu ae Voe 
Gelidium cartilagineum mt is recorded by Edmondston as 
washed ashore on the north side of the Island of Unst, but, as 
mentioned by Batters (Catalogue, p. 99) it is not a native of the 
British Isles 
Chondrus crispus (L.) Lyngb. (E.). 
Gigartina mamillosa (G. et W. ) J. Ag. (Chondrus mamillosus ar ) 
Callophyllis laciniata (Huds.) Kiitz. (Rhodymenia laciniata E 
Oh oa yeaa purpurascens (Huds.) Kiitz. ea tina pur. purascens 
Fthodymenia palmata (L.) Grev. (algmeni palmat a k.), 
Lomentaria articulata (Huds.) Lyngb. (Ch. wf ame oe E.). 
—L. clavellosa (Turn.).—Found growing on "the Laminaria 
hyperborea at a depth of about six ger Lewin 
Chylocladia kalifor “a Hook, 
ocamium coccineum (Huds. ) rei (K.). 
Nitophylium peal as Grev. (E.).—N.laceratum (Gm.) Gre 
Some small specimens ovcurred epiphytic on the stem of Laminaria 
hyperborea. Lerwick. 
Delesseria alata (Huds. ) Lam.(E).—D. sinuosa (G. et W.)Lam.(E.). 
—D. sanguinea (L.) (Lam. (E.). 
Odonthalia dentata (L.) Lyngb. (E ). 
Laurencia pinnatifida (Gmel.) Lam. (E.). 
Polysiphonia ur — (Lightf.) Grev. se so elongata sora 
Harv. (E.).—P. v th.) 
Grey, (E.).—P. psn scens (Huds.) fay. .).—P. atro seri 
(Dillw.) Grey. (E.).—P. Brodiai (Dillw.) ¢ v. (EK. 
Spermothamnion Turneri (Mert.) Aresch. On the stem of Lami- 
naria hyper erwick, 
Gicdinlivion Rothit (Turt.) Niig. (Calithamnion Rothii E.). 
Callithamnion arbuscula (Dillw.) oe (E.). — C. g -anulatum 
(Ducl.) Ag. ate Spee oe mH.). E —— — 
thamnton tetric not unfrequent,”’ bas tells me 
that it “is sty - all likely to be ‘fotiod on the enaat of "Shotla nd ; 
probably the species intended is C. oo B brachiatum, which 
is abundant at Skaill in the Orkne 
Griffithsia setacea (Ell.) Ag. (E. . 
Ptilota plumosa (L.) Ag. (E. 
Antithamnion Pluimula (Ell. ) ‘Thur. (Callithamnion Pheiniitin E.). 
Ceramium diaphanum Roth (E.).—C. rubrum (Huds.) Ag. (E.).— 
C, acanthonotum Carm. “ys C. ciliatum Due uz. (E.). 
ia e 
Furcellaria jemgittn (I) Lam E hes 
Hildenbrandia rosea Kitz. Lerwick, Burra V; 
Dermatolithon macrocarpum Fosl. i. Saniora '(Crn.) Fosl.— 
Journat or Borany.—Vou. 41. ([Sepremper, 1903.) x 
