Eu-Florideto, Griffithsiese, GriiHthsia. 1271 



vol. XXVI, Ardiss. Phyc. Medit. I, p. 80, Hauck Wfeeresalgen p. 89, 

 Bngl. & Prantl Natiirl. Pflanzenfam. (1897) p. 487, Polychroma 

 Bonnem. [182"2] in Journ. Phys. XCIV, p. 191, Ascocladium Naeg. 

 [1801] Beitr. Cerain. p. 159, Heterosphondylium Naeg. [1861] 

 Beitr. Ceram. p. 162, Anotrichium Naeg. [1861] I.eitr. Ceram. 

 p. 163, Stephanoconium Kuetz. [1862] Tab. Phye. XII, p. 5, Gr.if- 

 ftthia Spreng. [1827] Syst. IV, pag. 351 (non alior.), Confervce, 

 CalliUiamnii, Gonocarpi, Ceramii sp. auct. — Frons erecta, 

 filiformis, lateraliter furcatimve ramosa, monosiphonia, articulata, 

 articulis cylindraceo-elongatis sa;pe medio tuinidis, nuda aut ra- 

 niulis brevibus verticillatim e prjmario egredientibus obsita. Cy- 

 stocarpia ssepe plura involucro regulari, ramellis incurvis plurimis 

 constituto, sessili aut pedunculato, terminali inclusa. Tetrasporangia 

 ad articulos fertiles nunc solitaria demuin fasciculata aut verticil- 

 lata in ramulis subpropriis evoluta nunc in his ipsis terminalia 

 nunc aliis sterilibus involucrata, nunc ad ramos involucrantes inte- 

 riore latere provenientia, spkerica, triangule divisa. Antheridia 

 modo sporangiorum disposita, conico-oblonga, nunc articuli partem 

 terminalem dense obtegentia. 



Obs. De genere Gri/fithsia sequentia docet clarus J. Agardh, 

 additis addendis. Frondes sunt caespitosse, radiculis filiformibus 

 repentibus conjunctse, mox erecfce, plus minus regulariter dicho- 

 tomaj, in paucis ob axillas patentiores adparenter ramulosse, decom- 

 posita), ssepius eximie fastigiatae, aliquando subflabellatse, articula- 

 tae, articulis cylindraceis aut saepius ob genicula eximie contracta 

 oblongis aut immo ellipsoideis, medio tunc plus minus tumidis, 

 furcas sustinentibus dilatatis subpiriformibus. Fabrica membrana- 

 ruin peculiaris, <pio fit ut frondes recentes, in aqua dulci depositae, 

 crepitante sono, succuni cellularem ejiciant et membranoe contor- 

 queantur atque collabantur ut in Bornetia secundiftora egregius 

 Preda, in Valonia clari Martens et Zanardini observarunt. Organa 

 fructificationis triplicis generis observata, in diversis plantis intra 

 involucra, pro diversitate specierum varia, inclusa. Involucra te- 

 trasporangiorum nunc circa genicula verticillatim disposita, in 

 ramis majoribus non mutatis ad articulos plures obvenientia, nunc 

 in ramulo laterali piriformiter inllato solitaria, terminalia et 

 umbellata, aut articulis singulis paucisve superata et circa geni- 

 culum verticillata ; ramuli involucrantes ex articulis singulis in- 

 curvis constant; nunc vero sunt involucra in ramulo laterali bre- 

 viori terminalia, umbellatim amhiuntia, ramulis involucrantibus 



80 



