Eu-rlorldese, CorallinaoefB, Litliothamnlon. 1757 



ac Li tho tham ni is ad «Sulen» Norvegiii3 occidentalis CBoye). — 

 Conceptacula sporangifera 200-300 jj.. diam., centrali parte depressa 

 aut margine annuhito oincta, tegmine canalibus fero 30 intersecto. 

 — forma australis Fosl. Now Melobesieae (1901) p. 8: crusta ut 

 in f. sublcevi sed ssepius crassiore; conceptaculis sporangiferis 

 minus prominentibus. Ad oras Victorise (J. Gabriel). 



71. Lithothamnion laBve (Stroemf.) Fosl. in Rosenv. Deux. Mem. Alg. 2795 

 Mar. Groenl. (1898) p. 14, Revis. Syst. Surv. of Melob. (1900) 



p. 15, Lithophylhim lceve Stroemf. Algveg. IsL p. 21, t. I, f. 11- 

 12, Lithothamnion Stroemfeltii Fosl. Norw. p. 145, LitJiothamnion 

 tenue Rosenv. Groenl. Havalg. p. 778, c. ic. — Fronde Lith. 

 Lenormandii Aresch. structura et modo crescendi simile, crusta 

 Iseviore, arctius adnata, non vel parce zonata sporangiisque duplo 

 majoribus 125-160 « 30-80 [j.., binas tantum sporas foventibus. 



Hab. ad « Eyrarbakki » Islandiffi (Stroemfelt) ; ad oras Groen- 

 landise occidentalis (Rosenvingej; in mari Albo (Gobi); ad oras 

 Spetsbergise ; eadem sp. ad littus Atlanticum Americae borealis? 

 (Farlow, sec. Foslie). — f. macrospora Fosl. Norw. Lithoth. p. 145, 

 t, 22, f. 12; crusta plerumque nitida, concentrice zonata, margine 

 lobato vel crenato; conceptaculis sporangiferis 600-900 \l. diam., 

 sporangiis 250-600 » 100-200 [i. In oceano Atlantico superiori. — 

 forma tenuis (Kjellm.) Fosl. Rev. Syst. Surv. of Melob. (1900) 

 p. 15, Lithothamnion Stroemfeltii f. tenuissima Fosl. Norw. Lithoth. 

 p. 145, Lithophyllum tenue Kjelhn. Om Beringhafvets Algflora 

 1889, p. 12, t. I, f. 6-10: crusta fere chartacea, diam. 2-3 cm., 

 dilute livido-rosea, opaca, levissima at striis incrementi concentricis 

 plus minus distinctis notata, limbo incrassato, firma, fragili, integra 

 vel irregulariter crenata lobatave, lobis rotundatis; conceptaculis 

 sporocarpiferis et sporangiferis elevatis, creberrimis, sa^pe confiuen- 

 tibus et in crustis bene evolutis series plus minus regulares con- 

 centricas formantibus, his depresso-hemisphyericis, illis hemisphcie- 

 ricis vel hemisphaerico-conicis. Ad lapides et conchas Mytili in 

 regione sublitorali « Port Clarence » fretus Behringiani (Exped. 

 Vega). — Crusta 50-200 [jl. crassa. Conceptacula sporangifera 

 300-600 ]i.. diam., tegmine canalibus 80-120 (ut in forma macro- 

 spora) intersecto. Sporangia sec. Foslie, 150-200 « 50-80. Concepta- 

 cula carposporifera, sec. Foslie, 600-800 {a. diam., carposporis 

 150-250^80-130 (x. 



72. Lithothamnion californlcum Fosl. Five new calcar. Algae (1900) 2796 

 p. 3. — Crusta 0,8-1,2 mm. crassa, levi, latiuscule expansa, dif- 



