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
Navicula forcipataGreville Quart. J. Microscop. Sci. 7: 83, pl. VI: figs. 10, 11 1859
Navicula forcipata var. balnearis(Grunow) Cleve Kongl. Svenska Vet. Akad. Handl. ser. 4 27(3): 66 1895
Navicula forcipata var. densestriataA. Schmidt Atlas: pl. 70: figs. 14-16 1881
Navicula forcipata var. densestriataA.W.F. Schmidt image
Navicula forcipata var. minimaØstrup Medd. Gronland 18: 436, pl. V: fig. 57 1895
Navicula forcipata var. minima Østrup image
Navicula forcipata var. minorA.W.F. Schmidt image
Navicula forcipata var. nummularia(Greville) Cleve K. Svenska Vet.-Akad. Handl., ser. 4, 27{3}: 66 1895
Navicula forcipata var. nummularioidesGrunow image
Navicula forcipata var. punctataCleve image
Navicula forcipata var. spatiataØstrup Medd. Gronland 18: 436, pl. V: fig. 60 1895
Navicula forcipata var. spatiata Østrup image
Navicula forcipata var. versicolorGrunow image