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.
Bibliographia Phycologica Universalis
TIRKEY, J., & S.P. ADHIKARY
2006 (Aug)
Blue green algae in the biological soil crusts of different regions of India
Feddes Repertorium
117(3-4): 280–306, 132 figs.