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

NameAuthorSourceCitationYear
QUADRICOCCUSFott image
Quadricoccus ellipticusHortobagyi image
Quadricoccus ellipticus var. majorN.I. Maidana & S. Mac Carthy in Lacoste et al. Darwiniana 27: 115, fig. 5 1986
Quadricoccus euryhalinicusM. Kuylenstierna in M. Kuylenstierna & B. Karlson Botanica Marina 41: 317, figs. 1-4 1998
Quadricoccus laevisFott image
Quadricoccus laevis var. giganteusThomasson image
Quadricoccus ovalisHindak image
Quadricoccus uzbekistanicus_('uzbekistanica')Ergashev image
Quadricoccus verrucosusFott image