514 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Marine Algae. 



Polysiphonia dumosa, Hook. f. & Harv. 



PolysifJionia dumosa. Hook. f. & Harv., Fl. Antarct., vol. i, p. 182, tab. 75, 

 fig. 1, 1847 ; J. Ag., Sp. Alg., vol. ii, p. 950, 1852. 



Campbell Island ; Hooker. 



A little-known and doubtful species, 



Polysiphonia Lyallii, Hook. f. & Harv. 



Polysiphonia Lyallii, Hook. f. & Harv., Fl. Nov. Zel., ii, p. 230. 



Auckland Islands ; Hooker. Enderby Island ; J. C. S. ! 



Agardh(^) seems to have been deceived as to the identity of this plant by 

 erroneously named specimens distributed by Haivey. He describes the plant as 

 having seven siphons, whereas it has only four. (See for a full discussion of its 

 affinities Falkenberg, " Die Rhodomelaceen," p. 143.) 



Brogniartella, Bory, 1822. 

 Distribution. — Chiefly in Australasian seas. 



Brogniartella australis (C. Ag.), Schmitz. 



CladostefJius australis, C. Ag., Syst. Alg., p. 169, 1824. Polysiphonia clado- 

 stephus, Mont., Ann. Sci. Nat., 1843 ; Mont., Voy. au Pole sud, Bot., i, 

 p. 132, tab. 13, f. 4, 1845. P. australis, J. Ag., Spec. Alg., p. 1044, 1863. 

 Brogniartella australis, Falk., "Die Rhodomelaceen," p. 546. 



Auckland Islands ; Hombron, Hooker. * The Snares ; R. M. L. (New Zea- 

 land, Australia, Tasmania.) 



Euzoniella, Falkenberg, 1901. 

 Distribution. — Australasian seas. 



Euzoniella cuneifolia (Mont.), Falkbg. 



Polyzonia cuneifolia, Mont., Voy. au Pole sud, Bot., i, p. 143, 1845 ; Hook. f. & 

 Harv., Fl. Nov. Zel., ii, p. 226, 1855. Euzoniella cuneifolia, Falk., " Die 

 Rhodomelaceen," p. 368, 1901. 



* The Snares ; R. M. L. Auckland Islands ; Hooker, R. M. L. Campbell 

 Island ; Hooker, J. C. S. ! (Southern New Zealand.) 



The specimens from Perseverance Harbour collected by Mr. Crosby Smith are 

 unusually well developed, from 8 cm. to 10 cm. in length, not epiphytic, but attached 

 to the rocks by holdfasts. (Plate XXII, fig. 2 ; Plate XXIII, fig. 3.) 



Euzoniella flabellifera (J. Ag.), R. M. L. 



Polyzonia flabellifera, J. Ag., Till. Alg. Syst., vi, p. 74. 



* The Snares ; R. M. L., J. C. S. ! Campbell Island ; J. C. S. ! 



(1) J. G. Agardh, " Species Algarum," p. 1021. 



