512 CORALLINES (AUCTOR. ARESCII.). Melobcsia. 



a. Fucicolw. minores, fronde 1 4 lineas diametro vix 



super ante. 



1. M. MEMHRANACEA (Esp. Zooph. t. 12 f. 1 4) tofa pagina inferior! 



adnata, fronde plana suborbiculari subintegra, supra subsqua- 

 muloso-imbricata, vix conflnente, keramidiis in conspicuis cen- 

 trum dccupanli bus. 



Corallina membranacca Esp. I. c. 



Melobesia mombranacea Lamour. Hist, dcs Pol. flex. p. 3lo. -- Kiih. 

 Pliyc. gen. p. 38o /. 78 f. 1. Spec. p. 690. Ifarv. Ner. austr.p. 111. Man. 

 ed. 2 p. 109. 



Uab. Zostene marinac ot Pliyceis proescrtim planis insidens, in 

 omnibus fere maribus obvia; optima voio in mari atlantico ah oris 

 iNorvo^ioe usquo ad promontorium Cap. b. spoi (Harvoy). In mari 

 mcditcrranoo non infrcquens. (Ilorb. prop, ot alior.) 



Frons in prima infantia tcnuisfimc membranacca, subrugosa, vix cal- 

 careci, coloris grisco-coerulcscentis- adulta calcarea, nunc rubra 1. purpurea, 

 nunc cretaceo-alba 1. virescens, diametro scmilincam 1. usque 2 lineas 

 a'quans, rarius a ccntro ad pcripheriam, ut Melobesia farinosa, rimosa, 

 supra moclo laevis, modo lamelloso-imbricata. Keramidia plus minus nu- 

 merosa, centrum occupantia, ora frondis tenuissima et subcrispa remanente 

 libero, nudo oculo vix conspicua. 



2. M, FARIXOSA (Lamour. Ilisl. des Pol. flex. p. 315 t. 12 /! 3) 



tota pagina inferiori adnata, fronde plana suborbiculari rimosa 

 subsquamuloso-imbricata mo\ conlluonti farin;cformi, keramidiis 

 inconspicuis totam frondem occupantibus. 



Melobesia farinosa Lamour. 1. c. Znnardlni Saygio p. 44. Kiilz. Spec, 

 p. C9G. Hart). Man. cd. 2 p. 109. 



? Melobesia granulala Meneghini. - - Kill"-. 1. c. p. C9G. 



Ilab. I'liycois prnccipue foliacois innascens, in mari atlantico, 

 meditorranoo ct adriatico fro<|iicntcr. Ad orain Capenscm in IUio- 

 domenia fimbriata; in mari rubro in foliis Sargassorum et in mari 

 australi ad Port Pbilippe Kcklonire Kicliardianoe insidens. 



Frons in prima infantia, ut prioris specie!, tonuissimc membranacea, 

 adultior magis magisque calcareo-vestila et coloris nunc cretacco-albidi 

 nunc purpurei, a centre ad peripheriam irregularitcr rimoso-exscissa, supra 

 rarius squamuloso-imbricato, deniquc cum vicinis frondibus plus minus 

 irregulanter conilucns, ut ipsa matrix quasi farina conspurcata videatur. 

 Keramidia ut in Melobcsia membranacea, scd non solum per centrum fron- 

 dis verum per totam hanc sparsa. Melobesia granulata Menegbini quo- 

 dammodo ad priorem accedens, proprie ad hanc specicm, si quid vuleant 



