1752 Eu-Floridese, Oorallinacese, Lithotliamnion. 



Hah. supra Corallinam officinalem et Cystoseirarum 

 partem inferiorem in oceano Atlantico ad oras A.ngli86 et Galliaj; 

 in mari Mediterraneo ad oras insuhe Sicilife (Philippi) et insul?e 

 Rhodos; in mari Australi ad insulam «Norfolk» (Harvey). — Frons 

 diametro 1-5 cm. ffiquans (format secundum Philippi in mari stra- 

 tum longitudine plus quam pedale et crassitie plura cm. sequausj 

 coloris rubro-purpurei aut albidi, circumscriptione plus minus 

 in formam suborbicularem tendens, centro ut vieetiir adnata am- 

 bituque libera, imbrirato-lobata; lobi vix ultra 2 cm. lati, omnes 

 horizontales pulcherrime imbricati, tenues, fere papyracei, semicir- 

 culares, zonati, margine fere integri sed plus minus undulati vel 

 omnino plani. Conceptacula subhemisphaerica, evideuter poro per- 

 tusa. — Sec. cl. Foslie formge plures distinguendai! sunt, ut mihi 

 videtur, forsan characteribus nimium nugalibus institut*: forma 

 pusilla Fosl. New or crit. Calc. Alg. (1899) p. 12, Lithophyllum 

 lichenoides Rosan. Melob. t. 5, f. 1 a-c, Lithothamnion lichenoides 

 f. epiphytica Fosl. On some Lithoth. (1897) p. 4 (nomen in adnot.): 

 fronde crustacea, epiphytica, minus crassa quam in speciminibus 

 rupincolis. — forma ?antarctica (Hook. f. et Harv.) Fosl. List of 

 Sp. p. 7, Calc. Alg. froni Fuegia (1900) p. 70, Melohesia antarctica 

 Hook. f. et Harv. Nereis australis p. 111, Aresch. in J. Ag. Sp. II, 

 p. 514, Melohesia verrucata var. antarctica Hook. f. Crypt. an- 

 tarct. p. 176, Kuetz. Sp. Algar. p. Q96, Lithothamnion antarcticum 

 Heydr. Lith. Mus. Paris (1901) p. 544: fronde circumscriptione 

 orbiculari, lobata, medio adnata, margiue integerrimii libera, super- 

 ficie levi lineis concentricis undulata, conceptaculis depresso-he- 

 mispha^ricis. In variis Algis pra^cipue in Ballia, in Clado- 

 stepho et in Corallina ad littora Fuegiana (P. Dcsen, Foslie) 

 «Hermite Island, Cap Horn, Falkland-Islands et Kerguelens Land». 

 — forma Patena (Hook. f. et Harv.) Fosl. New or crit. calc. Alg. 

 (1900j p. 12, Lithothamnion Patena Heydr. Lith. Mus. Paris (1901) 

 p. 542, Melohesia Patena Hook. f. et Harv. Nereis Australis p. 111, 

 t. 40, Aresch. in J. Ag. Sp. II, p. 514, non Melohesia crassiuscula 

 Kuetz. Phyc. geuer. p. 380, nec Mastophora crassiuscula Kuetz. 

 Sp. p. 696 (in frondibus Gelidii cartilaginei, forsan alienam spe- 

 ciem sistens); fronde basi fixa, horizontali, obovata vel suborbiculari 

 applanata, crassiuscula, concentrice striata, nitida, margine integer- 

 rimo crasso plano; conceptaculis orbicularibus, depressis, sparsis. 

 Ad oras Nov* Zelandise in frondibus C o r a 1 1 i n « , B a 1 1 i se et D e- 

 lesseriie (Colenso, Harvey, Mueller, Heydrich). — Hanc for- 



