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
KRINGS, Michael, Hans KERP, Edith L. TAYLOR, & Carla J. HARPER
2017 (Jul. 31) Hagenococcus aggregatus nov. gen. et sp., a microscopic, colony-forming alga from the 410-million-yr-old Rhynie chert
105(1-2): 205-217, 3 figs.