866 Eu-Florideae, Polysiphoniese, Polysiphonia. 



Hab. in caulibus Cauliniae antarcticse atl « King George's 

 Sound » Australise (Harvey). — Caespites singuli subglobosi (cse- 

 pitibus numerosis forsan in stratum confluentibus), exsiccati ro- 

 seo-coccinei fere Callithamnion referentes, diametro vix 12 millim. 

 sequantes. Fila capillo tenuiora, decomposito-ramosissima, ramis 

 distantioribus (articulis plus minus numerosis interjectis) patentis- 

 simis divaricatis vagis, apice nunc paulo supereminente dichotomo 

 aut ramulis secundis paucis obsito; ramuli a basi longe attenuati 

 molles. Articuli diametro subsequales, nunc parum longiores nunc 

 subbreviores. Substantia mollis, tactu gelatinosa. 



POLYSIPHONIA Grev. [1824] Fl. Edin. p. 308 emend. (Etym. polys 

 plus et sipho tubus), Kuetz. Sp. p 802 excl. sp., J. Ag. Sp. II, 3, 

 p. 900 excl. sp., Derb. et Sol. Mem. physiol. Alg. pag. 7 c. tab., 

 Reinhard Mater. Morph. Syst. Alg. Schw. Meer. (1885) pag. 133, 

 c. fig., Wright in Trans. R. Irish Academy vol. XXVI, Rosenvinge 

 in Botanisk Tidsskrift XIV et XVII 1-2, Engl. & Prantl Natiirl. 

 Pflanzenfam. (1897) p. 439, Falkenb. Rhodomelaceen (1901) p. 111, 

 Hutchinsia Ag. [1817] Syn. p. XXVI, Sp. II, p. 55 (non Brown), 

 Grammita Bonnem. [1822] Hydroph. locul. pag. 24 (Journ. Phys. 

 XCIV, p. 186), Corradoria Martius [1825] Bras. I, p. 16 [Carra- 

 doria?) (non Carradoria DC. (1848) nec Corradoria Trevis. 1849), 

 Broussonetia Gratel. mscr. (non L' Herit. nec Ortega), Vertebrata 

 Gray [1821] Arr. Brit. Pl. I, pag. 338, Dicarpella Bory [1823] 

 Dict. class. III, p. 340, Grateloupella Bory [1823] Dict. class. III, 

 p. 340, Grammitella Crouan [1848] in Ann. Sc. Nat. 3 ser. Tom. X, 

 p. 372, Lophyros Targ. [1819] in Bertol. Amoenit. pag. 306-307 

 partim, Polyostea Rupr. [1850J Alg. Ochot. pag. 230, Confervce, 

 Fuci, Ceramii, Dasyce, Rytiphloece, Lamourouxice, Hudsonio\ 

 Rhodomelce sp. auct. — Frons erecta aut primum decumbens, 

 dein exsurgens, teres, rarius subcompressa, furcatim aut quoquo- 

 versum lateraliter ramosa, ramis ramulos laterales conformes spi- 

 rali ordine aut irregulariter dispositos gerentibus, polysiphonia. 

 Structura parenchymatica aut parenchymatico-filamentosa; cellulaj 

 (pericentrales) 4-24 circa centralem in orbem dispositse icquilongse 

 nudse aut cortice rhizoidibus breve articulatis nonnunquam quasi 

 parenchymatice coalescentibus composito obducta?, ramulis ultimis 

 nunc monosiphoniis. Cystocarpia ovato-globosa aut suburceolata, 

 a ramulo transformata, intra pericarpium cellulosum, carpostomio 

 apertum, carposporas piriformes in articulo terminali filorum a 



