1258 Eu-Floridese, Sperrnothainniese, Sphondylothamnion. 



mum oppositis alternisve iterum lateraliter ramulosis. Cystocarpia 

 globosa, terminalia, involucrata, carposporas magnas piriformes a 

 cellula plancentari quoquoversum radiantes foventia. Tetrasporan- 

 gia interiore latere ramellorum verticillatorum sessilia, spluurica, 

 triangule divisa ('). Amtheridia globosa, eodem modo ac tetraspo- 

 rangia disposita, e cellulis hyalinis radiantibus constituta. 



Obs. Ad hoc genus verisimillime pertinent nonnulke species 

 Australasic;e in praesenti opere inter Wrangelias ad pag. 127-131 

 sub numeris 1, 2, 3, 6, 7, 8, 9, 10, 11, 12, 13 enumerat»; spe- 

 cies hae vero, quoad structuram cystocarpiis ulterius inquirendae, 

 in genere Wrangelia reliqui, potius quam Sphondytothamnion 

 speciebus dubiis nimis vexare. 



1. Sphondylothamnion multifidum (Huds.) Naeg. Beitr. (1861) p. 382, 1965 

 Born. et Thur. Notes algol. II, p. 481, t. 47, Ardiss. Phyc. Medit. I, 

 p. 306, Hauck Meeresalgen p. 49, fig. 14, Wrangelia multifida 

 J. Ag. Symb. p. 38, Sp. II, 3, p. 705, Epicr. p. 618, Harv. Pbyc. 

 Brit. tab. 27, Conferva multiftda Huds. Fl. Angl. p. 59G, Engl. 

 Botany tab. 1816, Callithamnion multifidum Kuetz. Phyc. gen. 

 p. 373, Sp. p. 651, Tab. Phyc. XI, t. 91, Callithamnion oppositi- 

 folium J. Ag. Alg. medit. p. 71, Griffithsia multifda Ag. Sp. II, 

 p. 133, Ceramium verticiitatum Ducl. Essai p. 49, Ceramium 

 Casuarinoi DC. Fl. Franc. II, pag. 40, Bonnem. Hydrophyt. loc. 

 p. 89, Lamour. Dict. d'hist. nat. c. icone (sec. Agardh), Cladoste- 

 phus charoides Schousb. Alg. Schousb. n. 222, Ceramium equi- 

 setifolium Schousb. Alg. n. 223, Ceramium Mt/riophyllum Schousb. 

 mscr., Griffdhsia Myriophyllum Schousb. Icon. ined. t. 355-356 

 (fide Bornet). — Frondibus erectis, bi-tripinnatis, pinnis plerumque 

 oppositis patentissimis, articulis diametro 5-6-plo longioribus, ver- 

 ticillis distantibus, superioribus adproximatis,.ramellis subdichoto- 

 mis incurvis, articulis ramellorum diametro 3-5-plo longioribus. 



Hab. in oceano Atlantico ad oras Floridre (Farlow) ex oris Scotiae 

 et ins. Canariensium (Vickers) usque ad Tingin Africse descendens 

 (Schousboe); ad « Mazaghan » (Askenasy); in sinu lugdunensi-gal- 

 lico ad Massiliam (J. Agardh, Castagne) ; in mari Ligustico, pas- 

 sim (Dufour, Hompard, Strafforello); in mari Tyrrheno ad in- 

 sulam « Elba » (D. na Toscanelli); in mari Adriatico (Hauck). — 



(') Sec. Bornet et Thuret sporangia irregulariter quasi cruciatim diviJun- 

 tur; primitus septum oritur transversum. 



