1772 Eu-I^lorideae, Corallinacese, Dermatolithon. 



ab oris Angliie usque in Mediterraneum et Adriaticuni; iii oceano 

 Pacifico ad insulam «Norfolk» (Harvey); eadem species ad littora 

 Japoniiie (Martens) insulaeque Formosae (Heydrich). — Frons initio 

 plana, suborbicularis, at sensim vegetatione supra lamelloso-imbri- 

 cata plus minus pulvinata, coloris rubescentis, virescentis vel albi, 

 2-10 millim. diametro ;equans, denique cum aliis frondibus in 

 crustam plus minus indeterminatam, crassam confluens, mono- 

 pauci-stromatica. Conceptacula mamillseforraia, 300-500 [x. diam. 

 — Forma crinita Moeb. in Fosl. Rev. Syst. Surv. of Melob. (190lj 

 pag. 21 est mihi ignota. 



2. Dermatoiithon macrocarpum (Rosan.) Fosl. Rev. Syst. Surv. of 2851 

 Melob. (1900; p. 21 (excl. f. Laminarioe), Melobesia macrocarpa 

 Rosan. Rech. Melob. p. 74, t. 4, f. 2-8, 11-20, Heydr. Corall. 

 insbes. Melob. (1897) p. 45. — Habitu et structura Dermatolithi 

 pustulati; conceptaculis magis prominentibus magis(|ue conicis, 

 sporangiis bipartitis. 



/ra&. in frondibus PhyIlophor;e rubentis in oceano Athm- 

 tico pr. « Cherbourg » Gallite (Rosanoff) et ad oras Norvegiie 

 (KjELLMANj. — An status, quoad sporangia, inevohitus Dermat. 

 pustulati fLamour.) Fosl.?, Melobesiam ma.crocarpam Rosan. clarus 

 Hauck^ dubii signo adposito, inter synonyma J/e/o&e5«a^ pi<5^w/a/a' 

 Lamour. enumeravit. — forma faeroensis Fosl. Rem. Melob. Herb. 

 Crouan pag. 14, Revis. Syst. Surv. of Melob. (1900; pag. 21:con- 

 ceptaculis sporangiferis subconicis, parum prominentibus. In fron- 

 dibus Gigartinae mamillosae in oceano Atlantico ad oras in- 

 sularum Faeroensium (Boergesen, Simmonsj. — Crust;e in forma 

 hac faeroensi ad 300 [a. crassie, G-8-stromaticae. Conceptarula spo- 

 rangifera 450-550 [x, diam., sporangiis bisporis, 90-140 ^ 50-75. [j.. 



3. Dermatolitlion Laminarise (Crouan) P^osl. Remarks on Melob. in 2852 

 Herb. Crouan (1899) p. 13, Dermatolithon macrocarpum f. Jm- 

 minainoi FosL Rev. Syst. Surv. of Melob. (1900) p. 22, Melobesia 

 Laminaria' Crouan Fl. Finist. p. 150 saltem pro parte. — Crusta 

 plana, subtili, orbiculari aut suborbiculari, violaceo-brunnea, fragi- 

 lissima, p;irum lobat;i, superficie lissurata; conceptaculis parvis, 

 numerosis, valde depressis. 



Hab.. in stipitibus Laminarise digitatiB in oceano Atlan- 

 tico ad littora Galli;e (Crouan;. - Crustte 1-2 cm. lat;e. Sporangia 

 ellipsoidea, zonatim divisa. 



4. Dermatoiithon hapalidioides (Crouan) Fosl. Rem. Melob. in Herb. 2853 

 Crou:in 11899) p. 10. Rev. Syst. Surv. of Melob. (1900) p. 22, 



