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

RHOIKONEISGrunow image
Rhoikoneis bolleanaGrunow Verh. K.K. Zool.-Bot. Ges. Wien 13: 147, pl. 13: fig. 11 1863
Rhoikoneis bolleana var. sibericaGrunow image
Rhoikoneis decussataKarsten image
Rhoikoneis garkeanaGrunow Verh. K.K. Zool.-Bot. Ges. Wien 13: 147, pl. 13: fig. 12 1863
Rhoikoneis garkeana var. japonicaSkvortzov image
Rhoikoneis genuflexa(Kützing) Grunow Verh. K.K. Zool.-Bot. Ges. Wien 13: 147 1863
Rhoikoneis genuflexa(Kützing) Grunow image
Rhoikoneis interruptaM. Peragallo image
Rhoikoneis pagoensisC.S. Lobban Micronesica 2015-02: 14, figs. 131-138 2015
Rhoikoneis sponsalia(Giffen) Medlin Brit. Phycol. J. 20: 317 1985
Rhoikoneis sponsalis(Giffen) Medlin image
Rhoikoneis trinodis(Ralfs) Grunow Verh. K. Zool.-Bot. Ges. Wien 13: 147 1863