294 | FLORA OF TASMANIA. [4lge, by W. H. Harvey. 
Gen. XXXV. ECTOCARPUS, Zyngb. 
(Lyngb. Hyd. Dan. p. 130. J. Ag. Sp. Alg. i. p. 14. Kiitz. Sp. Alg. p. 449.) 
1. Ectocarpus siliculosus (Lyngb.; J. Ag. Sp. Alg. i. p. 22; Kiitz. Sp. Alg. p. 451; Harv. 
Phyc. Brit. t. 162). 
Has. Georgetown, etc. 
Disrris. Northern and southern temperate zones. 
2. Ectocarpus fasciculatus (Harv. Man. ed. 2. p. 59; Harv. Phyc. Brit. t. 273; Wyatt, Alg. 
Damn. n. 302; Kitz. Sp. Alg. i. p. 22). 
Has. On Chorda lomentaria, at Georgetown, J. Penny. 
Our specimens agree pretty nearly with specimens from the British seas, but are not fully matured. They are 
however in fruit. 
9. Ectocarpus sordidus (Harv.) ; fronde decumbente debili alias algas investiente vage et parce 
ramosa, ramis paucis flexuosis subsimplicibus nudisque hic illic ramulum horizontalem brevem ferentibus. 
Has. Georgetown, covering small A/ge, Gunn. 
This resembles the British E crinitus, to which it might without much violence be referred. It forms sprawl- 
ing strata, investing the smaller 4/ge, when growing in muddy places. 
Series II. RHODOSPERMEA. 
Tree I. RHODOMELACEA. 
Gen. XXXVI. CLAUDEA, Lamour. 
(Lamour. An. Mus. xx. p. 121. Endl. 8rd Suppl. p. 50. Kütz. Sp. Alg. p. 887.) 
l. Claudea elegans (Lamour. Ess. t. 2. f. 2, 4; Kütz. Sp. Alg. p. 888; Harv. in Lond. Journ. 
Bot. iii. p. 408. t. 20; Harv. Ner. Austr. 15; Phyc. Austr. t. 1).—Fucus Claudei, Zurn. Hist. t. 243. 
Has. In the Tamar, above Georgetown, especially at Point Rapid. 
DisrRrB. Western Australia. 
Gen. XXXVII. MARTENSIA, Her. 
(Hering, Ann. Nat. Hist. viii. p. 92. Harv. Ner. Austr. p. 73. Kütz. Sp. Alg. p. 888.) 
l. Martensia, sp. 
Haz. In the Tamar, at Georgetown, Gunn, Fereday. 
We regret that at present it is out of our power to determine this plant. Fragments of the fringe of a gigantie 
Martensia, much larger and more robust than any we have elsewhere seen, have been sent to us by Mr. Gunn, and 
similar fragments have been found by Mr. Fereday. No state of M. elegans that we have examined resembles these 
fragments, and they are still less like any of the other described species, except perhaps M. australis, Harv., from 
Swan River. The fringe, when perfect, must have been more than 6 inches in breadth; the individual meshes are 
nearly + inch long, the walls of the meshes more than a line in breadth; and the exterior margin of the network 
fimbriato-laciniate. Until the membranous portion of the frond, and especially the base of the membrane, shall have 
been seen, it will be impossible satisfactorily to determine the species. 
