Alga, by W. H. Harvey.) FLORA OF TASMANIA. 289 
2. Carpomitra inermis (Kütz. Phyc. p. 343; Harv. in Lond. Journ. Bot. vi. p. 415; J. Ag. 
Sp. Alg. i. p. 178).—Fucus inermis, R. Br. in Turn. Hist. t. 186. 
Has. Sent by Mr. Gunn. 
DisrRIB. South coast of New Holland. 
9. Carpomitra siliguosa (J. Ag. Sp. Alg. i. p. 178). 
Han. Tasmania, Baume in Mus. Par, (Unknown to us.) 
Gen. XVIII. NEREIA, Zanard. 
(Dub. et Solier. Mem. Cour. p. 57. t. 16. Sporochni sp., J. Ag. Sp. Alg. i. p. 175.) 
l. Nereia australis (Harv.); fronde elata filiformi cartilaginea solida decomposite ramosissima, 
ramis ramulisque alternis sparsisve quoquoversum egredientibus junioribus apice comosis, ramis minoribus 
suberectis basi angustatis acutis, ramulis setaceis, axillis omnibus acutis, verrucis (receptaculis) elevato- 
conicis apice comosis demum nudis ex filis ramosis sporas oblongas gerentibus constitutis.—Stilophora ? 
australis, Harv. in Lond. Journ. Bot. iii. p. 453; J. Ag. Sp. Alg. i. p. 86; Harv. Alg. Exsic. Aust. n. 66. 
(Tas. CLXXXVILL) 
Has. Georgetown, R. Gunn, W. H. H. 
DisrarB. Port Phillip, Victoria. 
Frond 1-2 feet long, excessively branched and bushy. Stem undivided, 14 line in diameter below, attenuated 
to the thickness of a bristle above, cartilaginous, solid, with a densely cellular axis, set throughout with lateral 
branches, which issue irregularly, and are directed towards all sides. Each branch is a repetition of the stem on a 
smaller scale, and is again and again decompound. All the tips are acute, and crowned when young with a tuft of 
confervoid fibres. The smaller branches taper to the base, and are more or less furnished with minute setaceous 
ramuli, each crowned with filaments. The wartlike receptacles are densely scattered over the whole frond, and when 
young bears a tuft of filaments, as in Sporochnus.—Puiate CLXXXVIII. Fig. 1, a frond, nat. size ; 2, frustule of a 
branch, with two setaceous ramuli; 3, longitudinal semisection of a branch; 4, a wartlike receptacle; 5, spore- 
threads and spores from the same :—the latter figures variously magnified. 
Teres II. LAMINARIACER. 
Gen. XIX. MACROCYSTIS, 49. 
(Ag. in Act. Leop. xix. 1. p. 281. J. Ag. Sp. Alg. i. p. 153. Kiitz. Sp. Alg. p. 582.) 
1. Macrocystis pyrifera (Hook. fil. et Harv. Fl. Antarct. i. p. 177, ii. p. 461; Fl. N. Zeal. ii. 
p. 217).—Macrocystidis omnes sp., J. Ag. Sp. Alg. i. pp. 155-158 (excl. M. obtusa) ; Kütz. Sp. Alg. pp. 
582-584. Fucus pyriferus, Turn. t. 110. 
Has. All round the coast. : 
Disrr1b. South coast of New Holland, New Zealand, west coast of North and South America, and 
specially in the great Southern Ocean. 
Gen. XX. ECKLONIA, Hornem. 
(Hornem. in Dansk. Vid. Skrift. iii. p. 370. J. Ag. Sp. Alg. i. p. 144. Kiitz. Sp. Alg. p. 586. Capea, Mont. 
Ann. Se. Nat. 1840.) 
1. Ecklonia radiata (J. Ag. Sp. Alg. i. p. 146).—Capea radiata, Endl. 8rd Suppl. p. 27; Kiitz. 
Sp. Alg. p. 578. Fucus radiatus, Turn. Hist. t. 194. Ecklonia exasperata, J. Ag. l.c. Capea birunci- 
nata, Mont. Canar. p. 140. t. T. 
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