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

Navicula yarrensis var. de-wittiana_('DeWittiana') (Kain & Schultze) Cleve image
Navicula wittianaGrunow image
Wittia macellariiD.M. Harwood Mem. Geol. Soc. Amer. 169: 90, fig. 16.3-6 1988
Thalassiosiropsis wittiana(Pantocsek) Hasle image
Thalassiosiropsis wittiana(Pantocsek) G.R. Hasle in G.R. Hasle & E.E. Syvertsen Micropaleontology 31: 89 1985
Navicula de-wittiana_('DeWittiana') C.H. Kain & E.A. Schultze image
Coscinodiscus wittianusPantocsek Beitr. Kenntn. Foss. Bacill. Ungarns 2: 119 1889
Coscinodiscus wittianusJ. Pantocsek image
Goniothecium wittianumPantocsek image
WITTIAPantocsek image
Wittia insignisPantocsek image
Actinoptychus wittianusA. Truan y Luard & O.N. Witt image
Actinoptychus wittianus var. hexagonaA. Truan y Luard & O.N. Witt image
Triceratium wittianumA. Truan y Luard image
Triceratium wittianumTruan y Luard in Truan y Luard & Witt Diat. Hayti: 23, pl. VII: fig. 16 1888
Trilamina wittiana(Truan y Luard) J. Witkowski, P.A. Sims, N.I. Strelnikova & D.M. Williams Phytotaxa 209: 31 2015