202 
ornata. Long, semicell. 18 / m, lat. cum proc. 58—59 //, lat. 
supra isthm. 11—12 //; lat. isthm. 6,5 //. Fig. 6. 
Enoggera Reservoir. 
5. dilatation var. obtusilobum De Not. 
Forma Nordst. Fr. w. alg. N. Zeal. p. 41, t. 4, f. 15. 
Upper Walsh River. 
.S', leptocladum var. cornutum Wille. 
Enoggera Reservoir. 
S. pseudosebaldi *tonsum Nordst. 
Enoggera Reservoir. 
S. sexangulare var. gemmescens Playf. Polymorph, 
p. 489, t. 12, f. 11. 
Forma dorso semicellularum late rotundato. Long, 
semic. 19—20 //, lat. cum rad. 71 — 72 lat. isthm. 11 — 12 u. 
Fig. 7. 
Barrow River. 
Vgl. auch var. production Rac. Desm. Ciastoni. p. 381. 
t, 7, f.. 12 und 1. australica Schmidle. 
Euastrum Ehrenb.; Ralfs. 
E. ansatum Ralfs. 
Barrow River. 
E. denticulatum var. stictum Borges. 
Forma tab. nostr. fig. 8. Long. cell. 39 lat. 27,5 /n\ 
lat. isthm. 7,5—8 fi. 
Barrow River, 
E. elegans var. pseudelegans (Turn.) West. 
Forma West Monogr. Br. Desm. II, p. 49, t. 38, f. 23. 
Barrow River. 
E. spinulosum *inermius Nordst. 
Long. cell. 58—61 //, lat. 48—52 //; lat. isthm. 13—14,5//. 
Barrow River. 
E. turner i West. 
Forma E. sp. Nordst. Fr. w. alg. N. Zeal, similis sed 
minor. Long. cell. 29 u, lat 20 /<; lat. isthm. 6,5 //. 
Barrow River. 
