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

Heterococcus protonematoidesVischer image
Oedocladium protonemaStahl image
PROTONEMAC. Agardh image
Protonema badiumMeneghini ex Trevisan image
Protonema brebissoniiDesmazieres image
Protonema clavatum(Kützing) Rabenhorst image
Protonema cryptarum(C. Agardh) C. Agardh Syst. Alg.: 44 1824
Protonema cryptarum(Dillwyn) C. Agardh image
Protonema dichotomumKützing Natuurk. Verh. Holland. Maatsch. Wet. Haarlem, ser. 2, 1: 60, 61, 62, pl. O: p.p. 1841
Protonema dichotomumKützing image
Protonema equisetiC. Agardh image
Protonema ericetorum(Kützing) Rabenhorst image
Protonema fragransC. Agardh image
Protonema orthotrichi(Dillwyn) C. Agardh image
Protonema parietinumC. Agardh image
Protonema repensC. Agardh image
Protonema salinaDunal image
Protonema salinum_('salina')Dunal C.R. Acad. Sci. [Paris] 5: 586 1837
Protonema sclerococcus(Kützing) Rabenhorst image
Protonema simplexTurpin image
Protonema thermaleMeneghini ex Trevisan image
Protonema umbrosum(Roth) C. Agardh Syst. Alg.: 43 1824
Protonema velutinum(L.) C. Agardh image
Protonema velutinumC. Agardh Syst. Alg.: 43 1824
PROTONEMACEAEChevallier image