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

Chaetangium corneumJ. Agardh Anal. Cont. V: 106 1899
Chaetangium pseudosaccatumLevring Ark. Bot. ser. 2, 3: 423, fig. 9 1955
Chaetangium pulvinatumLevring Ark. Bot. ser. 2, 3: 422, figs. 8, 10A 1955
Chaetangium ovale(Suhr) Papenfuss Bot. Not. 1940: 213 1940
Chaetangium lingulaHarvey in J. Hooker Fl. Tasman. 2: 316 1859
Chaetangium flabellatumHarvey in Hooker Fl. Tasman. 2: 316 1859
Chaetangium erinaceum(Turner) Papenfuss Journal of South African Botany 17: 173 1952
Chaetangium saccatumJ. Agardh Öfvers. K. [Svenska] Vet.-Akad. Förh. 6: 89 1849
Chaetangium fastigiatum(Bory de Saint-Vincent) J. Agardh Sp. Alg. 2: 460 1851
Chaetangium variolosum(Montagne) J. Agardh Sp. Alg. 2: 461 1851
CHAETANGIUMF.T. Kützing image
CHAETANGIUMJ. Agardh image
Chaetangium chilenseJ.G. Agardh image
Chaetangium corneumJ.G. Agardh image
Chaetangium crispum(C.A. Agardh) J.G. Agardh image
Chaetangium dichotomumF.T. Kützing image
Chaetangium erinaceum(D. Turner) G.F. Papenfuss image
Chaetangium fastigiatum(Bory) J. Agardh image
Chaetangium fastigiatum var. minus_('minor')J.G. Agardh ex P.A. Hariot image
Chaetangium flabellatumW.H. Harvey image
Chaetangium hystrix(C.A. Agardh) F.T. Kützing image
Chaetangium lingulaW.H. Harvey image
Chaetangium magnificumR.K.F. Pilger image
Chaetangium ornatum(C. v. Linnaeus) F.T. Kützing image
Chaetangium ovale(J. Suhr) G.F. Papenfuss image
Chaetangium pseudosaccatumT. Levring image
Chaetangium pulvinatumT. Levring image
Chaetangium saccatumJ.G. Agardh image
Chaetangium variolosum(J.P.F.C. Montagne) J. Agardh image
Chaetangium vittatum(C. v. Linnaeus) P.G. Parkinson image
Chaetangium zeyheriF.T. Kützing image