Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

ISACTIS(Thuret) Thuret image
ISACTISThuret image
ISACTISThuret ex Bornet & Flahault image
Isactis caespitosa(Kützing) Wolle image
Isactis caespitosa f. tenuior-viridisRabenhorst ex Wolle Fresh-water Alg. U.S.: 245, pl. CLXXVIII: figs. 1-3; pl. CCV: figs. 6,7 1887
Isactis caespitosa f. tenuior-viridis_('tenuior viridis')Rabenhorst image
Isactis caespitosaWolle Fresh-water Alg. U.S.: 245, pl. CLXXVI: fig. 5 1887
Isactis centrifugaBornet image
Isactis centrifugaBornet image
Isactis fluviatilis(Kützing) Kirchner image
Isactis fluviatilisWolle Fresh-water Alg. U.S.: 244, pl. CLXXVII: figs. 5, 6 1887
Isactis nipponicaHirose J. Jap. Bot. 13: 803, fig. 32 1937
Isactis plana(Harvey) Thuret image
Isactis plana f. fissurata(Crouan) Batters image
Isactis planaThuret ex Bornet & Flahault Ann. Sci. Nat. Bot., ser. 7, 4: 344 1886
Isactis plana var. fissurata(Crouan fr.) Bornet & Flahault image
Isactis plana var. fissurataBornet & Flahault image
Isactis plana var. plana image