127G Eu-Floridese, Griffithsieae, Griffithsia. 



nacea. Hsec species habitu fere magis Callithamnion quam Grif- 

 fdhsiam semulatur. 

 5. Griffithsia furcellata J. Ag. Alg. med. p. 75, Epicr. p. 70, Kuetz. 1991 

 Sp. p. 661, Tab. Phyc. XII, t. 30, f. e-g, Ardiss. Phyc. Medit. I, . 

 p. 89, Griffithsia Ardissonei Zanard. Icon. phyc. Adriat. t. 64, A, 

 (ramis a basi ad apicem eximio attenuatis), Griffithsia ramellosa 

 Kuetz. Tab. Phyc. XII, p. 10, t. 31, f. a-b, Griffthsia arachnoidea 

 Ag. Sp. II, p. 131, J. Ag. Sp. II, p. 88, Epicr. p. 70, Kuetz. Sp. 

 p. 662 (articulis diametro 6-12-plo longioribus, an ex collabascen- 

 tia?) partim?, Tab. Phyc. XII, t. 32, f. a-c [Mont. Canar. p. 175 

 (sec. Bornet)], Ceramium minialum Bory Moree n. 1501, Fl. Pelop. 

 p. 77, n. 1799 (sec. Bornet), Conferva setacea Spr. in Berl. Mag. 

 1809, t. 7, f. 9 (fide spec). — Fronde minuta, capillari, regulariter 

 dichotoma fastigiata, segmentis erectiusculis, terminalibus furcel- 

 latis, articulis cylindraceis ad genicula vix contractis, diametro 

 5-6-plo longioribus. 



Hab. ad saxa maris Mediterranei ; in mari Tyrrheno ad 

 « Amalfi >> (J. Agardh) et Neapolin (Kuetzing, D. na Favarger); e 

 sinu Panormitano (Hb. Sprengel); in mari Jonico ad « Acireaie » 

 Siciliae (Ardissone); ad oras Peioponnesi (Bory) ; eadem in oceano 

 Atlantico ad insulas Canarias (Montagne), ad oras Galliae? (Duvau). 

 — Coespes vix 2,5 cm. longit. metiens (si huc vere pertinet Grif- 

 fithsia arachnoidea multo longior). Frondes tenuissimas, crassitie 

 capillares, a basi ad apicem dichotomo-decompositre, segmentis vero 

 nunc distantioribus nunc crebrioribus, infra apices plurimis, ali- 

 quando subsecundatis, eximie fastigiatse. Articuli cylindraeei, ra- 

 migeri plerumque superne dilatati, diametro 4-6-plo longiores, ge- 

 nicuiis pellucidis non contractis. Color recentis miniatus, fere 

 subsimilis illi, quem ceterne species arre expositse primum indu- 

 untur; exsiccatione in roseum pulcherrimum abiens. Specimina 

 rite pramarata exsiccatione chartse arcte adhrerent. Griffithsiai tenui 

 videtur proxima species, attamen abunde diversa, ramificatione 

 dichotomo-fastigiata, apicibus furcellatis, segmentis erectiusculis. 

 Ambagibus pnetermissis ad GriffUhsiam furcellatam refero, ut 

 synonymon, Griffithsiam arachnoideam Ag., quae, nomine anti- 

 quiore, prioritatis lege pneferenda potius videretur. Articuli Grif- 

 fithsite arachnoideai dicuntur diametro 6-12-plo longiores, expressis 

 verbis medio tenuiores, versus utrostuie fines incrassati ideoque 

 geniculis tmnidi, quod verisimillime a collabascentia articulorum 

 pendet. 



