Eu-FloridejD, CorallinaceHe, Melobesia. 17G5 



Rosan. Rech. Mclob. p. 60, t. 2, f. 3-5, 10-12, t. 3, f. 2-13, t. 4, 

 f. 1, Solins Corall. p. 11, t. 1, f. 4, t. 3, f. 11, Haiick Meeresalgen 

 p. 268, fig. 107, Ardiss. Pliyc. Medit. I, p. 445, Melobesia imv- 

 quilatera Solms Corall. Golf. Neap. (1881) p. 12, t. III, f. 13-18?, 

 Melobesia verrucata aiict. ex parte, Kuetz. Sp. p. 696 ?, Arescli. 

 iii J. Ag. Sp. II, p. 513? (non Crouan nec Lamour), Ilapalidium 

 coccineuni Crouan Fl. Finist. p. 149 ex parte, Melobesia granulata 

 Menegh. in Zanard. Saggio (1843) p. 44 (nonien), Kuetz. Sp. p. 696, 

 Aresch. in J. Ag. Sp. II, p. 518, Millepora Fucorum Larnarck 

 partini?. — Fronde plana, tota pagina inferiori adnata, suborbicu- 

 lari, rimosa, subsquamuloso-imbricata, mox confluenti farina^formi ; 

 conceptaculis totam frondem occupantibus, bemisphaericis, confertis, 

 minutissimis. 



Hab. polypariis, foliis Zos teracear u m frondibusque alga- 

 rum pra3cipue foliaceis innascens, in oceano Atlantico, in mari 

 Mediterraneo et Adriatico frequenter; ad oras Capenses in Calli- 

 blepharide fimbriata; in mari Rubro foliis Sargassorum 

 et in mari Australi ad « Port Philipp » Novie HoIIandipe frondibus 

 Eckloni» (Richardianae) insidens. — Frons prima letate te- 

 nuissime membranacea, adultior magis magisque calcareo-vestita 

 et coloris nunc cretaceo-albidi nunc purpurei, a centro ad periphe- 

 riam irregulariter rimoso-exscissa, supra rarius squanniloso-irabri- 

 cata, denique cum vicinis frondibus plus minus irregulariter con- 

 fluens, ut ipsa matrix quasi farina conspurcata videatur. Series 

 cellularum, quibus frons constat, 8-12 [i. latse. Frons ipsa mono- 

 stromatica, prope conceptacula vero distromatica. Conceptacula per 

 totam frondem sparsa, conferta, 100-200 {j-. diam. metientia, sporan- 

 gifera poro cellulis piliformi elongatis circumdato instructa. 

 2. Melobesia callithamnioides Falkenb. Alg. Neap. (1879) p. 265, Solms 2833 

 Corall. p. 11, t. I, f. 9, 12-13, Hauck Meeresalgen p. 262, f. 106. 

 — Fronde tenui, albida vel rufescente, lacunosa, tota pagina infe- 

 riori adnata, e seriebus cellularum 10-20 [j.. latis, dichotomo-ra- 

 diantibus plus minus coalescentibus et passim anastomosantibus 

 constituta. 



Hab. in frondibus Caulerpte, Gr acilaricie, Valoniaj alia- 

 rumque algarum in sinu Neapolitano (Falkenberg, Solms-Laubach, 

 Berthold) et mari Adriatico (Hauck) — Hapalidium callitha- 

 mnioides Crouan in Ann. Sc. Nat., Bot., ser. 4, T. XII, p. 287, 

 t. 21, f. D 21-24, Fl. Finist. p. 149, t. 20, gen. 131, quod non- 

 nulli auctores, ex. gr. Hauck, ad Melobesiam callithamnioidem 



