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
Tabular display
Results from INA database
- Cymbella helvetica Kützing image
- Cymbella helvetica f. ornata Mayer image
- Cymbella helvetica f. silesiaca Rabenhorst
- Cymbella helvetica var. africana Fritsch & Rich image
- Cymbella helvetica var. balatonis (Grunow) Cleve image
- Cymbella helvetica var. compacta (Østrup) Hustedt image
- Cymbella helvetica var. curta Cleve image
- Cymbella helvetica var. elongata Pantocsek image
- Cymbella helvetica var. excisa Prudent image
- Cymbella helvetica var. fossilis Pantocsek image
- Cymbella helvetica var. gracilis Meister image
- Cymbella helvetica var. incisa Prudent image
- Cymbella helvetica var. major Meister image
- Cymbella helvetica var. maxima Prudent image
- Cymbella helvetica var. punctata Hustedt image
- Cymbella helvetica var. scotica (A. Schmidt) Frenguelli image
- Cymbella helvetica var. signata M. Peragallo image
- Cymbella helvetica var. undulata Prudent image