Eu-Floridese, Polysiphonieae, Polysiphonia 953 



Polysiphonia fdiginosa Rudolphi in Linnsea 1881, Suhr Alg. 

 Eckl. n. 63, Harv. Nereis Austral. p. 56, Polysiphonia fasciculi- 

 fera Kuetz. Sp. p. 814, Tab. Phyc. XIII, t. 61, f. a-d (non quoad 

 specim. in herb. Argentorati osserv. q. ad Streblocladiw speciein 

 pertin.) (partim), Polysiphonia juncea Kuetz. Sp. pag. 813, Tab. 

 Phyc. XIII, t. 55, f. a-e, J. Ag. Sp. II, 3, p. 1067, Polysiphonia 

 linocladia Kuetz. Sp. p. 813, Tab. Phyc. XIII, t. 56, f. a-e (cy- 

 stocarpifera), J. Ag. Sp. II, 3, p. 1068, Polysiphonia Gandichaudi 

 J. Ag. Sp. II, 3, p. 1060, Kuetz. Tab. Phyc. XIII, t. 60, f. a-d 

 (cystocarpifera), Hutchinsia Gaudichaudi Ag. Sp. II, p. 62, Cera- 

 m.ium fuliginosum Mert. mscr. sec. Rudolphi, Ceramium ramu- 

 losum Mert. mscr., Ceramium subarticulatum Mert. mscr., Cera- 

 mium dumosum Mert. mscr. — Fronde elata, tereti, pinnatim de- 

 composito-ramosa, sursum longe corticata, ramis in planta sterili mi- 

 noribus dense virgatis, in fertili subdichotomo-fasciculatis, siphoni- 

 bus 12-16 circa centralem, tubis minoribus cinctum, articulis fere 

 ubique corticatis obsoletis, in ramulis nudis diametro subaequali- 

 bus; tetrasporangiis in ramulis axillaribus dense dichotomo-de- 

 compositis fasciculatis evolutis, ramellos terminales occupantibus; 

 cystocarpiis globoso-urceolatis, in ramulis nanis adventitiis dis- 

 positis. 



Hab. in stipite Eckloniae ad Caput Bonse Spei Africse austra- 

 lis (Gaudichaud); an eadem ad oras Brasiliae (Martius) et ad oras 

 occidentales Novse Hollandise? (Reinbold sec. Falkenberg). — 

 Cajspites ab expansione radicali surgentes, usque pedales et ultra, 

 filis pennain passerinam inferne crassis, sursum decompositis at- 

 tenuatis, superne fere setam crassis, juvenilibus purpurascentibus, 

 adultioribus nigrescentibus. Rami in juvenili planta saepe admo- 

 dum densi et evidenter pinnatim dispositi (divergentiasaepe '/, sec. 

 Falkenberg), frondes circumcirca obtegentes, nunc magis dissiti et 

 in planta majore quasi conipressa subdistichae dispositionis tenden- 

 tiam monstrantes, sed quoquoversi ob plantam subtortam; steriles 

 evidentius pinnatim decompositi, ramulis obtusiusculis a basi at- 

 tenuatis, fertiles ob ramos inferiores prolongatos ramificatione in- 

 ter pinnatam et dichotomam ambigui, densius decompositi, in ax- 

 illis aut potius supra axillas (ab articulo secundo) interiore latere 

 ranmlos fasciculatos multo tenuiores et breviores, dense dichoto- 

 mo-decompositos, quasi multifidos fastigiatos gerentes. Tetraspo- 

 rangia in horum ramellis terminalibus evoluta, singula serie dis- 

 posita, extus vix conspicue prominula. Articuli in tota planta in- 



