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
PEREIRA, Jeferson Luizi, & Luis Henrique Zanini BRANCO
2007 (Apr. 30) Sirocladium robustum, uma nova espécie de Zygnemataceae (Chlorophyta) (Sirocladium robustum a new species of Zygnemataceae (Chlorophyta))
Hoehnea
34(1): 103-107, 6 figs., 1 table