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Tuesday, September 1, 2026
American Culture ClubAMERICAN CULTURE, ARTS & IDEAS

Smithsonian Open Access Explorer

Smithsonian Open Access Explorer organizes records from Smithsonian Open Access API into a static table for transparent comparison. It preserves official source links and dates, marks missing enrichment, and adds deterministic grouping, change, recency, trend, or significance fields only where the documented inputs support them, without recommendations or unsupported claims.

Records
5,000
Last changed
Update schedule
18 12 3 * * UTC
Coverage
01/01/1190–10/03/2048
Method
Methodology
RecordRecord DateVuga GroupChange StatusRecency DaysPublic Significance Score
Spirulina subsalsa Oersted ex Gomont03/18/1915NMNHBOTANYunchanged40,707.430
Callophyllis flabellulata Harv.01/01/1875NMNHBOTANYunchanged55,392.430
Gracilaria sp.07/15/1979NMNHBOTANYunchanged17,212.430
Herposiphonia plumula04/17/1935NMNHBOTANYunchanged33,372.430
Desmarestia sp.08/02/1963NMNHBOTANYunchanged23,038.430
Sphondylothamnion multifidumNMNHBOTANYunchanged0
Nitella pseudoflabellata A. Braun in A. Braun & Rabenh.06/11/1961NMNHBOTANYunchanged23,820.430
Gelidium purpurascens N.L. Gardner06/02/1984NMNHBOTANYunchanged15,428.430
Spirogyra crassa05/13/1878NMNHBOTANYunchanged54,164.430
Sarcodiotheca gaudichaudii01/27/1968NMNHBOTANYunchanged21,399.430
Sargassum liebmannii02/08/1954NMNHBOTANYunchanged26,500.430
Ulva compressa L.06/27/1914NMNHBOTANYunchanged40,971.430
Ceramium strictum04/16/1961NMNHBOTANYunchanged23,876.430
Gelidiella acerosa (Forssk.) Feldmann & G. HamelNMNHBOTANYunchanged0
Halymenia formosa10/01/1892NMNHBOTANYunchanged48,909.430
Heterosiphonia sp.08/25/1985NMNHBOTANYunchanged14,979.430
Ochtodes sp.04/03/1978NMNHBOTANYunchanged17,680.430
Dermatolithon sp.12/29/1948NMNHBOTANYunchanged28,367.430
Cladostephus hirsutusNMNHBOTANYunchanged0
Prasiola furfuraceaNMNHBOTANYunchanged0
Palmogloea protuberans (Sm.) Kütz.01/01/1891NMNHBOTANYunchanged49,548.430
Gelidium spinosum (S.G. Gmel.) P.C. Silva09/15/1951NMNHBOTANYunchanged27,377.430
Gracilaria turgida E.Y. Dawson08/21/1946NMNHBOTANYunchanged29,228.430
Halimeda incrassata (J. Ellis) J.V.LamourouxNMNHBOTANYunchanged0
Schizothrix arenaria Gomont11/03/1948NMNHBOTANYunchanged28,423.430
Himantothallus grandifolius01/02/1965NMNHBOTANYunchanged22,519.430
Anacystis cyanea10/06/1878NMNHBOTANYunchanged54,018.430
Anabaena oscillarioides01/01/1839NMNHBOTANYunchanged68,541.430
Dictyota mertensii (C. Mart.) Kütz.07/07/1978NMNHBOTANYunchanged17,585.430
Anadyomene stellata (Wulfen) C. Agardh02/10/1952NMNHBOTANYunchanged27,229.430
Chorda filum (L.) Stackh.NMNHBOTANYunchanged0
Wrangelia penicillata (C. Agardh) C. AgardhNMNHBOTANYunchanged0
Trichogloeopsis sp.10/17/1979NMNHBOTANYunchanged17,118.430
Savoiea bipinnata (Postels & Rupr.) M.J. WynneNMNHBOTANYunchanged0
Anacystis cyanea08/21/1946NMNHBOTANYunchanged29,228.430
Codium isthmocladum Vickers07/02/1925NMNHBOTANYunchanged36,948.430
Ptilothamnion codicola (E.Y. Dawson) I.A. Abbott12/17/1949NMNHBOTANYunchanged28,014.430
Vaucheria dichotomaNMNHBOTANYunchanged0
Trochiscia reticularis04/19/1908NMNHBOTANYunchanged43,231.430
Callithamnion biseriatumNMNHBOTANYunchanged0
Gigartina sp.05/24/1963NMNHBOTANYunchanged23,108.430
Neorhodomela larix (Turner) MasudaNMNHBOTANYunchanged0
Halimeda taenicola W.R. Taylor07/16/1946NMNHBOTANYunchanged29,264.430
Scenedesmus bijuga11/08/1948NMNHBOTANYunchanged28,418.430
Acetabularia acetabulum J.V.Lamouroux06/13/1950NMNHBOTANYunchanged27,836.430
Cladophora glomerata (L.) Kütz.07/08/1954NMNHBOTANYunchanged26,350.430
Bostrychia sp.10/27/1969NMNHBOTANYunchanged20,760.430
Acanthophora spicifera (Vahl) Børgesen08/30/1960NMNHBOTANYunchanged24,105.430
Chaetomorpha clavata var. tortaNMNHBOTANYunchanged0
Microcoleus lyngbyaceus Kütz. ex Forti09/02/1943NMNHBOTANYunchanged30,312.430