Silva Center for Phycological Documentation: Index Nominum Algarum

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

Results from INA database

Areosphaeridium actinocoronatum(Benedek) Stover & Evitt image
Areosphaeridium arcuatumG.L. Eaton image
Areosphaeridium capricornum(Cookson & Eisenack) Stover & Evitt image
Areosphaeridium diktyloplokus(Klumpp) G.L. Eaton image
Areosphaeridium multicornutumG.L. Eaton image
Areosphaeridium pectiniforme(Gerlach) Stover & Evitt image
Areosphaeridium polypetellumM.A. Islam Palynology 7: 82, pl. 2: figs. 1-6 (HT=2-3) 1983