932 Eu-Floridese, Polysiphomese, Polysiphonia. 



haud paucis instructa; rami sunt erecto-adpressi acutiusculi, den- 

 sissiuie ramulosi; rainuli longiores, inferiores sinipliciiisculi, ple- 

 rumque curvati, scepe recurvi; P. Dictyurus est exsiccata fusce- 

 scens, rarissimis rarnis instructa, at ratnulis fere seque longis exi- 

 mie patentibus per totam longitudinem pinnatim obsita; ramuli 

 sunt ob ramellos divaricatos sursum latiores et quasi obtusi. Utra- 

 que autem species structuram frondis simillimam monstrat. 



88. Polysiphonia isogona Harv. in Hook. Fl. N. Zeal. pag. 231. — 1551 

 Frondibus setaceo-capillaribus, e basi decomposite ramosissimis, 

 ramis pluries alterne vel subdichotome divisis, ramis minoribus 

 basi longe nudis apice multifidis, ramulis erectis, axillis omnibus 

 angustis, apicibus parce fibrillosis, articulis omnibus diametro sub- 

 sesqui- vel duplo longioribus, geniculis pellucidis, siphonibus 9. 



Ilab. ad « Blind Bay, Cook's Straits » (Lyall) et ad « Cap Kid- 

 napper et Hawke's Bay » Novse Zelandise (Colenso). — Frondes 

 caespites densos efficiunt. Color badius. Substantia in sicco fragilis. 

 Habitus Polysiphonicc anisogona?. 



89. Polysiphonia aterrima Hook. et Harv. Alg. Nov. Zel. in Lond. ir,:, ~ 

 Journ. Bot. IV, p. 536, Harv. Nereis Austr. p. 52, Kuetz. Sp. p. 816, 



J. Ag. Sp. II, 3, p. 1050 (quoad diaguosin), Falkenb. Rhodomela- 

 ceen (1901) p. 124, Polysiphonia decipiens Mont. in J. Ag. Alg. 

 Nov. Zel. niar. p. 29, n. 263 (nou alibi, nec P. decipiens De No- 

 taris). — Fronde sulcata, articulata, tota ecorticata, setacea, sursum 

 decomposite ramosissinia sensim attenuata vix dichotoma, ramis 

 alternis secundisve iterum alterne divisis circumscriptione obova- 

 tis, ramulis ultimis subulatis subsimplicibus distantibus erectis, 

 axillis acutis, articulis omnibus brevissimis, !)-10-siphoniis; stichi- 

 diis subfusiformibus, interiore latere ramulorum subsecundato fa- 

 sciculatis, tetrasporangia vix prominula foventibus; cystocarpiis 

 ovato-globosis, obtusissimis, sessilibus, sparsis. 



Ilab. in Fucoideis epiphytica ad oras orientales Novse Ze- 

 lamlise (Colenso, Berggren). — Frondos 9-12 cm. longoe, setaceae, 

 ramosissimse, exsiccatione intense nigrescentes. Rami alterni aut 

 irregulares decompositi, ramis minoribus magis magisquc erectis. 

 Articuli ubicumque conspicui, brevissimi, cellulis hexagoniis pulchre 

 compositi. Substantia rigida. 



90. Polysiphonia comoides Harv. in Hook. Fl. N. Zeal. pag. 231. — 15J 

 Frondibus capillaribus, e basi decompositis ramosissimis, ramis 

 pluries alterne vel subdicbotome divisis, minoribus basi nudis api- 

 ccm versus alterne compositis, ramulis basi angustatis erectis, ar- 



