222 Cycksporiu.T, Diir\ illifacefe, Sarcop^yciis. 



Specios a geiiere removeudce. 



L Durvillaea potatorutn (Laliill.) Aresch. Phyr. oxtraourop. p. 17 est 



SafC(i/i/i//ciis iintdloi-iun (Labill.) Kuetz. 

 "i. Durvillaea simplex Suhr videtur Laminaria' species. 



SARCOPHYCUS Kuetz. ;^1813j Pliyc. geuer. p. 092, Sp. (1849), p. 587 

 (lCtym. sarx, sarcos caro et phijcos fucus), J. Ag. Sp. 1, p. 189, 

 Wliitting in Phyc. Menioirs edit by G. Murray part. II, VI, (1893), 

 ])e Toni riyst. Uebers. Fucoid. 1891. p. 17:!. Laininarice, Diirvil- 

 /tr/r et Ftici sp. — Frons expanso-planu, pinnatini divisa, iutra 

 stratuni corticale fibraruni densissimo appai"atu solideseens; con- 

 ceptacula seu scaphidia per totam frondem sparsa, infra superH- 

 ciem excavata, sphserica, cum ostiolo superficiali, per canalem coni- 

 municantia, dioica; oogonia clavato-elongata, parietalia vel filis 

 articuhxtis lateraliter insidentia, oospora quaterna foventia, con- 

 tentu zonatim (li. e. si'ptis transversis) tripartito, parte intermedia 

 septo longitudinali liipartita; antheridia obovata ut in ceteris Fu- 

 ceis conformata. 



Obs. Frons duplici strato constat; stratuni inedullare lilis elon- 

 gatis densissiniis intertextis sublongitudinaliter excurrentibus, conti- 

 nuo plexu totum internum spatium occupantibus contextum est. Ex 

 lio<' ad utramque paginam laminte egrediuntur fila perpendicularia, 

 dichotomo-fastigiata, in stratum compactum corticale coalescentia. 

 — Genus Durvilla.'ce Bory (cum quo Areschoug jam anno 1854 et 

 nuperrime clarus Kjellman (1893) conjunxit) peraffine. vix differt 

 a DHrcilkva fronde solida (nec intus lacunosa h. e. intus in lo- 

 culos laxe divisai. pinnat;l (nec subpalmata). 



i Sarcophycus potatorum Liibill,) Kuetz. Phyc gener. p. 39-3, Sp. p. 

 587. Aresch. in Oefvers. K. Vetensk. Akad. Forhandl. Stockholm 

 1817. p. -267, ,T. Ag. Sp. I. p. 190, F. G. Whitting Sarc. potat. in 

 Murray Pliyc. Mem. 1893, p. 10-11. t. XII, f. 1-3, Fncus potato- 

 rum Labill. PI. Nov. HoIIand. II, p. 112. t;ib. 257, Turn. Hist. 

 Fucor. t;ib. 242 !, Laminaria potatorum Lamour. Fssai p. 22, Ag. 

 Sp. L p. 115, Syst. p. 270, Hook. Fl. Australica p. 45G. Durvil- 

 la-a potatoinim Aresch. Phyc. extraeurop. (1854), p. 17. — Disco 

 b;isali phmo plus minusve orbiculari, stipite subtortuoso deorsuui 

 cylindracco, sursuui depl:u)ato, lamina subdigitato-lacini;it;i, l;ici- 



