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

Cymbella hybridaGrunow in Cleve K. Svenska Vet.-Akad. Handl., ser. 4 26{2}: 166, pl. IV: fig. 23 1894
Cymbella hybrida var. capitataFontell Ark. Bot. 14{21}: 21, pl. 2: fig. 38 1917
Cymbella hybrida var. lanceolataK. Krammer in K. Krammer & H. Lange-Bertalot Biblioth. Diatomol. 9: 27, pl. 8: fig. 12 1985
Cymbella hybrida var. lanceolataKrammer image
Cymbella hybrida var. pamiricaJ.B. Petersen image
Cymbella hybrida var. punctataFusey Cahiers Maboke 4: 64, pl. II: fig. 22 1966
Cymbella hybrida var. sierra-leonensisWoodhead & Tweed image