Alga, by W. H. Harvey.) FLORA OF TASMANIA. 301 
Has. On the larger Alga, very common. 
Distris. West and south and east coasts of New Holland. 
12. Polysiphonia Frutex (Harv. Lond. Journ. iii. p. 439; Ner. Austr. p. 52). 
Has. Georgetown, etc., common. 
DrsrarB. South coast of New Holland. 
13. Polysiphonia fuscescens (Harv. Lond. Journ. iii. p. 439; Ner. Austr. p. 52). 
Has. Georgetown, etc., common. 
Distris. South coast of New Holland. 
14. Polysiphonia versicolor (Hook. fil. et Harv.; Lond. Journ. vi. p. 999; Harv. Ner. Austr. 
p. 48. t. 16). 
Has. Georgetown, etc. 
DisrgiB. West and south coasts of New Holland. 
15. Polysiphonia monilifera (Hook. fil. et Harv.; Lond. Journ. vi. p. 399; Harv. Ner. Austr. 
p. 49. t. 16). 
Has. At Georgetown, rare, R. Guan. 
16. Polysiphonia ericoides (Harv. Lond. Journ. vi. p. 400 ; Ner. Austr. p. 50). 
Has. Tasmania, Rev. Mr. Ewing. Port Arthur, W. H; H. 
17. Polysiphonia cladostephus (Mont. Voy. Pól. Sud, i. p. 132. t. 18. f. 4 A; Harv. Ner. 
Austr. p. 45 ; Fl. N. Zeal. ii. p. 232).—Pol. byssoclados, Harv. Lond. Journ. iii. p. 436. Cladostephus 
australis, 4g. Syst. p. 169. Griffithsia australis, 4g. Sp. A/g. ii. p. 135. Bindera cladostephus, Dene. 
Has. Common, especially at Georgetown. 
Distri. All along the west and south coasts of New Holland. New Zealand. Auckland Islands, etc. 
18. Polysiphonia spinosissima (Harv.); fuscescens, dense cespitosa, fronde setacea fruticosa 
articulata sulcata decomposite ramosissima, ramis quaquaversis creberrimis patentibus pluries pinnatim 
compositis, ramulis spicæformibus squarrosis spiraliter insertis brevibus crebris, articulis septemsiphoniis, 
ramorum diametro sesquilongioribus, ramulorum brevissimis.—Harv. Alg. Austr. Exsie. n. 173. 
Has. Tasmania, C. Stuart. 
Disrarm. Coast of Victoria, at Port Fairy, W. H. H. 
Tufts 2-3 inches high, very dense, many fronds growing from the same base. Stems about as thick as hog’s- 
bristle, articulated to the base, and very densely beset with lateral, patent eegen directed to all sides 80 » to 
give a shrub-like aspect to the plant. The principal branches are again beset with a second, and — " eg 
«set, directed to all sides, and closely alternating in insertion. All the branches are densely " with short, spinelike, 
divaricate or reflexed ramuli, about a line in length. The articulations have seven radiating tubes, and yeh seg 
throughout the plant ; those of the branches scarcely once and half as long as broad, and those of "e er mae 
shorter than their breadth. The colour is a dark brown when dry, a am brown when er a s an 
soft, and soon decomposes in fresh-water. Frequently the whole = is densely urea e = en 
Tasmanian specimens entirely correspond with those from Victoria. Mr. Start aw no beg . 
Those from Port Fairy grew in a narrow tide-channel, or small creek, and not in the open Sea. 
Gen. LI. DASYA, 4y. 
(Ag. Sp. Alg. ii. p. 116. Harv. Ner. Austr. p. 57. Fl. N. Zeal. ii. p. 232.) 7 
1. Dasya Gunniana (Harv. Ner. Austr. p. 59. t. 17).—Pol. Gunniana, Harv. ın Lond. Journ. 
Bot. iii. p. 437. 
VOL. II. 
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