Eu-Floridere, Griffithsieae, Griffithsia. 1279 



Bortiet), Gonocarpus imbricatus Schousb. Alg. n. 265, Armo- 

 phyllum gonospermum Schousb . mscr. , Ceramiam Opuntia 

 Schousb. mscr., Grif/ititsia Opuntia J. Ag. Symb. p. 40, Griffithsia 

 Giraudii Solier mscr. — Fronde caespitosa, regulariter dichotoma 

 fastigiata, segmentis erectis, articulis superioribus ellipsoideis dia- 

 metro more duplo longioribus, fertilibus conformibus intra invo- 

 lucrum circa genicula verticillatum, ramellis simplicibus abbreviatis 

 incurvis constans tetrasporangia gerentibus. 



Hab. inter Algas repens, in mari Mediterraneo ad littus Gal- 

 loprovincia; (J. Agardh, Schousboe, Solier, Giraudy) ; ad Tripolin 

 Africae (De Toni); ad ora ins. Sardiniae (Piccone); in mari Adriatico 

 (Biasoletto, Sandri); in vicino Atlantico ad Tingin (Schousboe) et 

 ins. Canarias (Montagne). — Csespites subhemisphoerioi, 2-4, non- 

 nunquam 6 cm. longi. Frondes 0,5-1 millim. crassae, dense dicho- 

 toime, articulis 2-3 segmenta intercedentibus, fastigiatre et fere 

 nabellata 1 , ramis plantse recentis s«pe in planum expansis, inferne 

 subcylindrace;e, superne eximie moniliformes, articulis segmenta 

 sustinentibus pirifonnibus, supremis magis ellipsoideis, mediis 

 crassioribus. Rami fructiferi sterilibus conformes, ad genicula plura 

 frondis medise involucra verticillata gerentes. Cystocarpia intra 

 involucrum plerumque tria, arcte conjuncta. Tetrasporangia sphse- 

 rica. Antheridia involucro conformi tecta, subrotundata, more tetra- 

 sporangiorum verticillatim disposita. Ramuli involucrantes brevis- 

 simi incurvi, articulo unico aut articulis duobus constantes. Frons 

 in mari eximie nitens, fere iridescens, exsiccatione collabens et 

 variegata, geniculis plerumque intensius coloratis, interstitiis lute- 

 scentibus. Specimina exsiccatione chart;e arctissime adhierent. Grif- 

 fithsia Titii Bertol. Fl. it. crypt. pars secunda p. 242, quani in 

 portu « Capo d' Istria» Titius legit, videtur affinis Griffithsice 

 Schousboei. 

 10. Griffithsia corallina (Lightf.) Ag. Syn. Introd. p. XXVIII, Syst. 1993 

 p. 145, Sp. II, p. 127, Harv. Man. p. 103, Phyc. Brit. tab. 214, 

 Kuetz. Sp. p. 659 (excl. var.), Tab. Phyc. XII, t. 20, f. a-f, J. Ag. 

 Sp. II, p. 78, Epicr. p. 66, Florid. Morphol. t. I, f. 10-13, Buffham 

 Anther. of Florid. (1884) p. 342, t. XI, f. 3-5, Callithamnion 

 corallinum Lyngb. Hydr. p. 126, Conferva geniculata Ellis in Phil. 

 Trans. 57, t. 18, f. f, F, Conferva corallinoides L. Sp. p. 1636, 

 Huds. Fl. Angl. p. 598, Conferva corallina Lightf. Fl. Scot. p. 

 988, Engl. Botany tab. 1815, Dilhv. Conf. tab. 08. — Fronde erect.i, 

 dichotoma fastigiata, segmentis erecto-patentibus, articulis superio- 



