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
- Navicula protracta Grunow
- Navicula protracta f. conspicua Korotkevich image
- Navicula protracta f. conspicua Korotkevich image
- Navicula protracta f. elliptica Hustedt image
- Navicula protracta f. minor Grunow image
- Navicula protracta f. minor Krasske image
- Navicula protracta f. minor Pantocsek image
- Navicula protracta f. nipponica Skvortzov & Noda image
- Navicula protracta var. capitata P. Schulz image
- Navicula protracta var. elliptica Gallik
- Navicula protracta var. maxima Cleve image
- Navicula protracta var. minuta Grunow image
- Navicula protracta var. subcapitata Woronichin image
- Navicula protracta var. undulata Mölder image