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
THOMSEN, Helge Abildhaugen, & Jette Buch ØSTERGAARD
2016 Papposphaera iugifera nov. sp. from West Greenland, Svalbard, and the Baltic Sea
59(1): 71-79, 6 figs., 2 tables