Alge, by W. H. Harvey.) FLORA OF TASMANIA. 341 
lens. This appearance is caused by the dispersion of the endochrome towards the dissepiments in the process of 
drying. The articulations are very uniform in all parts of the filament, those of the principal branches being thrice 
as long as broad, of the ramuli shorter. The endochrome does not recover its form on moistening after having 
been dried. 
Gen. CXVI. CONFERVA, Ag. 
1. Conferva (Cheetomorpha) Darwinii (Kütz. Sp. Alg. p. 380).— Conf. clavata, var. Darwinii, 
Hook. fil. et Harv. Fl. Ant. ii. p. 493. t. 192. f. 1. (Tas. CXCVI. C) 
Has. On A/ge and rock-pools. 
DisrarB. Common on the shores of Australia and New Zealand. 
Prare CXCVI. C. Fig. 1, plant, nat. size; 2, terminal articulations, magnified. 
2. Conferva coliformis (Mont. Voy. Pôl. Sud, p. 5).—Chetomorpha coliformis, Kitz. Sp. Aly. 
p. 980; Tab. Phye. t. 62. f. 2. 
Has. Southport, C. Stuart. 
9. Conferva valida (Hook. fil. e& Harv. in Lond. Journ. vi. p. 416; Kütz. Sp. Alg. p. 379). 
Has. Georgetown, etc., common. 
We have received specimens of several fresh-water Conferve from Mr. Gunn ; unfortunately not in a state fit 
for examination and description. 
Gen. CXVII. TYNDARIDEA, Bory. 
l. Tyndaridea cruciata (Harv. Man. Br. Alg. p. 141 ?).—Zygnema cruciatum, Ag. Syst. p. 77; 
Kütz. Sp. Alg. p. 445. T. cruciata? and T. latescens, Hassall ? 
Haz. In the South Esk River, Gunn. 
We have also a specimen of another species of this genus, and more than one of Zygnema (Spirogyra), which 
we cannot determine from dried specimens. 
Trips IV. ULVACEE. 
Gen. CXVIII. PORPHYRA, 4g. 
(Ag. Syst. xxxii. Endl. 3rd Suppl. p. 19. Harv. Phyc. Brit. t. 92, t. 211. Kiitz. Sp. p. 691.) 
1. Porphyra laciniata (Ag. Syst. p. 190; Ag. Ic. Eur. t. 26, 27 ; Harv. Phyc. Brit. t. 92 ; Kütz. 
Sp. Alg. p. 692). 
Has. Rocky seacoasts. Generally diffused. 
Gen. CXIX. ENTEROMORPHA, Zink. 
(Link in Hor. Phys. p. 5. Harv. Phye. Brit.—Solenia, Ag. Syst. xxxii) 
1. Enteromorpha compressa (Grev. Alg. Brit. p. 180. t. 18; Harv. Phyc. Brit. t. 335; Kütz. 
Sp. Alg. p. 480). 
- Haz. Seashores and tidal rivers, everywhere. Also on woodwork and ships’ bottoms. Generally 
diffused. 
2. Enteromorpha intestinalis (Link, Hor. Phys. p. 5; Grev. Alg. Brit. p. 179; E. Bot. Suppl. 
t. 2756; Harv. Phyc. Brit. t. 154). 
Has. In similar places to the preceding ; often in ditches of brackish water. Generally diffused. 
4 
VOL. IL. S 
