Alge, by W. H. Harvey.] FLORA OF TASMANIA. 337 
aggregatis, antheridiis botryoideis e quoque fere articulo ramorum sepe evolutis.— Harv. in Trans. R. I. 
Acad. xxii. p. 569. 
Has. Parasitic on Age. Piper's River, Guan. 
DisrarB. King George's Sound, on Chorda lomentaria, W. H.H. 
Allied to the British C. Daviesii, C. virgatulum, etc. 
17. Callithamnion ? paradoxum (Harv.); fronde spongiosa guaguaversum ramosa in totum e 
filis radicantibus densissime intertextis conflata ambitu pyramidali, ramis lateralibus densissime tomentosis 
simplicibus v. iterum lateraliter compositis, ramulis (quasi villum ramorum) brevibus pinnatis, pinnis 
alternis paucis longissimis flexuosis obtusis, articulis pinnularum diametro subtriplo longioribus, tetrasporis 
ad latera pinnularum sessilibus solitariis. 
Has. Brown's River, Gunn. 
Spongy frond 6-8 inches long, with a pyramidal outline, alternately branched, the branches simple or again 
laterally compounded, spreading to all sides. There does not appear to be any central filament or axis (possibly it 
may have perished), but the branches are composed of slender rooting filaments, densely woven together into a 
spongy rope (much as in Ectocarpus tomentosus), and these throw off a periphery of subhorizontal, pinnate ramuli, 
1-2 lines long, which give the surface of the compound frond a shaggy or woolly appearance. These ramuli are 
once pinnated, the pinnze few, curved, and alternating on the short rachis. Tetraspores are borne on the sides of the 
pinne, as in others of the genus.—As yet I have seen but few specimens of this anomalous plant, and these not in 
good order; but I have no hesitation in admitting it, whether to this genus or not, as à distinetly marked species. 
Serres III. CHLOROSPERMELE. 
Trise I. SIPHONEE. 
Gen. CXV. CAULERPA, Lamour. 
(Lamour. An. Mus. xx. p. 282. Ag. Sp. Alg. i. p. 433. Kütz. Sp. Alg. p. 495.) 
1. Caulerpa hypnoides (Ag. Sp. Alg. i. p. 443; Sond. Pl. Preis. ii. p. 150; Kütz. Sp. Alg. 
p. 497).—Fucus hypnoides, Turn. t. 173. 
Has. Georgetown, not uncommon. 
Distri. Australia and New Zealand. 
2. Caulerpa obscura (Sond. Pl. Preis. ii. p. 150; Kütz. Sp. Alg. p. 497). 
Has. Tasmania, Gunn. (A single specimen.) l SE 
Disrris. Found all along the coast of Australia, from Swan River to Western Port, Victoria. 
The ramenta, described by Sonder as “ guadrifarious,” are not constantly so. In the .. luxuriant specimens 
they are generally distichous. I have not seen specimens of Greville’s C. superba from Bass’s Straits, but the figure 
given is not unlike some of the laxer states of C. obscura. 
3. Caulerpa furcifolia (Hook. fil. et Harv. Lond. Journ. vi. p. 416; Fl. N. Zeal. ii. p. 260. 
t. 121 B). 
Has. Common at Georgetown. 
Distris. Australia. 
- 4, Caulerpa Brownii ( 
Has. Port Arthur. 
Dısrers. New Holland and New Zealand. 
VOL. II. 
Endl.; Hook. fil. et Harv. Fl. N. Zeal. ii. p. 260. t. 121 4). 
