340 FLORA OF TASMANIA. [4lge, by W. H. Harvey. 
Stipes 1-2 inches long, cylindrical, consisting of a single cell. Above this stipes the filament is prolonged to 
12 or 20 inches, preserving the diameter of hog's-bristle, and becoming excessively branched in a manner partly 
trichotomous, partly dichotomous, and partly irregular. The ôranches are much bent, and often tangled together, and 
repeatedly forked ; their penultimate segments are long and filiform, flexuous, and furnished at the angles with a 
tuft of short, densely crowded ramuli. In some specimens the branches are bare of ramuli. The substance is 
rigid and erisp, not collapsing when removed from the water. The colour is a full grass-green. 
2. Cladophora Bainesii (F. Muell. et Harv.) ; longiuscule stipitata, flavo-viridis, siccitate vitreo- 
nitens, mollissima, filis basi setaceis mox capillaribus sursum maxime attenuatis elongatis di-trichotomis 
ramosissimis, ramis trichotomo-multifidis ramulis lateralibus polychotomis onustis, ramulis ultimis longe 
filiformibus apice acutis mucronatis, articulis ramorum longissime cylindraceis diametro 20-30-plo lon- 
gioribus ad genicula constrictis, ramulorum diametro 6-10-plo longioribus.—Harv. Alg. Exsie. n. 579; 
Phye. Austr. t. 112. 
Has. Georgetown. 
DisrRiB. Port Phillip, Baines, W. H. H., etc. 
Stipes as in the last species, to which this is allied in several respects, but is a much more slender, softer, 
and brighter-coloured plant, attenuated at its extremities to an extreme fineness. Both belong to the section of 
the European C. pellucida, and have nearly similar ramification. The present species grows 6-12 inches long, 
and closely adheres to paper in drying. It is very glossy in a dried state. 
3. Cladophora gracilis (Griff, in Wyatt’s Alg. Danm. n. 97; Harv. Man. ed. 1. p. 137; Harv. 
Phyc. Brit. t. 18; Fl. N. Zeal. ii. p. 263). 
Has. Georgetown, Guna. 
Distris. Europe and New Zealand. = 
4. Cladophora gracillima (Harv.) ; cespitosa, flavo-viridis, mollissima, siccitate sericea, filis 6-12- 
uncialibus tenuissimis decomposito-ramosissimis, ramis ramulisque repetite alternis v. secundis pluries 
compositis, ramulis sepe alterne secundis, articulis ramorum diametro 5-6-plo longioribus, ramulorum 
subbrevioribus, apicibus obtusis.—Harv. Alg. Exsie. n. 588. 
Has. Georgetown, W. H. H. 
Allied to C. gracilis, but much more slender, softer, and more silky. 
5. Cladophora ferruginea (Harv.) ; cæspite (ferruginco) brevi unciali globoso v. stellatim patente 
fastigiato spongioso, filis intertextis radicantibus parum ramosis, ramis ramulisque erectis strictis, articulis 
diametro 3-4-plo longioribus. : 
Has. On Hormosira Banksii, at Safety Cove, Port Arthur, W. H. H. 
This has the habit of C. uncialis, to which it is nearly allied. All our specimens are stained, apparently with 
ferruginous matter, so that till placed under a lens they may be taken to belong to an Zetocarpus. 
6. Cladophora Stuartii (Harv.) ; filis capillaribus tenuibus rigidiusculis siccitate eleganter 
variegatis e basi ramosis, ramis longissimis filiformibus indivisis simplicibus vel ramos secundarios 
similes emittentibus, ramulis brevibus patentibus sparsis alternis secundisve, articulis ad genicula con- 
tractis ramorum diametro triplo ramulorum subduplo longioribus. 
Has. Tasmania, C. Stuart. 
Tufts 4-6 inches long, pale-green. Filaments divided near the base into many long, simple or subsimple, 
thread-like branches, which are more or less beset with short patent ramuli of five or six joints. Sometimes the 
branches are' quite simple; sometimes the larger branches bear a second series of similar ones. When dried, the 
plant imperfectly adheres to paper, and is elegantly variegated with green and white when viewed with a pocket- 
