Eu-Floridese, Polysiplioiiiecie, Polysiphouia. 921 



Phye. XIII, t. 84, f. d-f), J. Ag. Sp. II. 3, p. L024 (non J. Ag 

 Alg. Med. p. 127), Polysiphonia forfex Harv. Phyc. Austr. t. 96. 

 — Caespite erectiusculo, subgloboso, (ilis teretibus a basi articula- 

 lis decomposito-dichotorais, apicibus forcipatis, fructiferis in ramos 

 sublaterales densius dichotomos subfastigiato-corymbosos abeunti- 

 bus, articulis 5-siphoniis, omnibus diametro duplo brevioribus; 

 fcetrasporangiis in corymbis ramorum in cellulis lateraliter promi- 

 nentibusj cystocarpiis ovatis, sessilibus. 



11(0). ad oras Australiae, ad « Rottnest « et «King Georgi 

 Sound » (IIakvev i, in « Baie du chien marin» (Freycinet). — Cae- 

 spes videtur globoso-expansus, 4-8 cm. longus. Fila admodum 

 crassa, quasi succulenta, sursum parum attenuata, inferne setam 

 porcinam superantia, a basi (lichotonio-dcliqucscentia, nunc ramis 

 unius lateris brevioribus quasi secundato-decomposita, apice for- 

 cipata, axillis omnium patentibus; in fructifera rami laterales pro- 

 veniunt a primaria fronde angulo admodum patente porrecti, con- 

 formes at densius dichotomi et subfastigiato-corymbosi ; ramuli 

 horum sunt admodum crassi ideoque rigidi, a basi latiore atte- 

 nuati. Artieuli in tota planta conspicui, ita hreves ut frons potius 

 celluloso-cancellata quam articulata dicenda sit, diametro fere duplo 

 hreviores, siphonum latitudine longitudinem saepc superante; in 

 sectione transversali conspiciuntur siphones 5 circa centralem (sec. 

 Ilarvey 6) cellula corticali minuta inter dissepimenta observanda. 

 Tetrasporangia corymhis lateralibus evoluta, in articulo singula 

 (ob crassitiem fili et siphones latos quasi in cellulis frondis cel- 

 Inlosa^ nidulantia adparent), extra cellulam infiatam quasi promi- 

 nula fila reddunt verrucosa. Cystocarpia late ovata, sessilia. Color 

 plantae recentis pallidus, siccitate purpurascens aut junioris ad 

 coccineum tendens. Specimina exsiccando chartse arcte adhsBrent. 

 Polysiphonia fragilis Suring. Alg. japon. p. 37, t. '25 B (pessuma) 

 in niari Japonise oras alluente a Siehold collecta monstrat sipho- 

 nes 5. Etsi male descripta, hgec species japonica cum Polysiphonia 

 forcipata Harv. quadrare videtur. 

 74. Polysiphonia? hemisphaerica Aresch. in Vet. Akad. Forhandl. 1:y - n 

 1870, p. 936 not., Observ. phyc. III, pag. 7, Hauck Meeresalgen 

 p. 235, Polysiphonia pulvinata Aresch. Alg. Scand. exsicc. ed. I, 

 n. 6, J. Ag. Sp. II, p. 957 partim. — Csespite semiglohoso, fllis 

 e lato implexu radicali egredientiluis dense stipatis, a hasi ecorti- 

 catis, parce sparseque ramosis, sursum parum attenuatis, ramulis 

 sparsis subpinnatim dispositis vel subpectinato-secuudis apice acu- 



