Eu-Floridese, Spongocioniene, Spongoclonium. 1357 



per interna; pinnulis ultimis saepe secundis; articulis diametro 

 triplo longioribus. 



Ilab. ad oras Dalmatise (Meneghini). — Nescio qua de causa 

 clarus Hauck hanc speciem ad Callithamnion hivtellum Zanard. 



ducat. Al) Ardissone in Phycologia meditcrranea li.rc omittitur. 



Subfamilia VI. SPONGOCLONIEjE Schmitz. 



Spongoclonieoz Schmitz [1889] Syst. Uebers. Florid. p. 16, Schm. et Hauptfl. in 

 Engl. & Prantl Natiirl. Phanzenfam. (1897) p. 483. 



Haloplegmece Mont. [1849] in D' Orb. Dict. X, p. 53 partim, Sond. [1852] in 

 Linntea XXV, p. 676, excl. gen. Brachycladia. 



Frons e filis nudis, longe articulatis, lateraliter ramosis, spongioso- 

 intricatis eomposita. Cystocarpia in ramulis brevissimis terminalia 

 (adparenter lateraliter adfixa) involucrata. Gonimoblastus e gonimo- 

 lobis es^olutione succedanea efformatis rotundatis constitutus. Tetra- 

 sporangia triangule divisa. 



Conspectus generum 



Spongoclonium Sond. — Frons teretiuscula. 

 llaloplegma Mont. — Frons complanata. 



SPONGOCLONIUM Sond. [1854] in Linnrea XXVI, p. 515 (Etym. spongos 

 spongiosus et clon ramnlus), Engl. & Prantl Natiirl. Pflanzenfani. 

 (1897) p. 491, J. Ag. Anal. algol. (1892) p. 39, Callithamnion sect. 

 Dasythamnion et RhodoLhamnion Harv. [1863] Syn. Phyc. Austral. 

 p. LI (non Dasythamnion J. Ag 1892), Callithamnii et Phlebotha- 

 mnii sp. auct. — Frons erecta, teres, quoquoversum ramosa, ramis 

 inrequilongis, eodem modo ramulosis, in contextum densum spon- 

 giosum concretis, axi centrali crasso rhizoidibus haud corticato 

 articulato, articulis quoquoversum alternatim ramos laterales emit- 

 tentibus, ramis his tantum latere exteriori ramulosis et tunc axin 

 tegmine crassiusculo obvolventibus. Cystocarpia per superficiem 

 frondis sparsa numerosa, extra reticulum imposita et tegmine ob- 

 tecta, tegmento patelheformi nullo. Nucleus e gonimoblasto unico in 

 gonimolobos numerosos evolutione suecedanea efformatos globoso- 

 rotundatos paucicellulares diviso constitutus. Sporangia breve pedi- 

 cellata, triangule divisa, solitaria aut seriata. Antheridia thyrsoidea. 



