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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
Jania sp.02/12/1933NMNHBOTANYunchanged34,166.430
Pachydictyon coriaceum04/03/1955NMNHBOTANYunchanged26,081.430
Cladophora sp.08/02/1953NMNHBOTANYunchanged26,690.430
Arthrocardia flabellata (Kütz.) Manza01/01/1894NMNHBOTANYunchanged48,452.430
Calothrix parietinaNMNHBOTANYunchanged0
Closterium striolatumNMNHBOTANYunchanged0
Ceramium uncinatum Harv. in Hook. f.08/15/1939NMNHBOTANYunchanged31,791.430
Derbesia minima03/30/1959NMNHBOTANYunchanged24,624.430
Porphyrosiphon notarisii Kütz. ex Gomont05/15/1944NMNHBOTANYunchanged30,056.430
Gelidium purpurascens N.L. Gardner06/04/1966NMNHBOTANYunchanged22,001.430
Ascophyllum nodosum06/03/1915NMNHBOTANYunchanged40,630.430
Hormosira banksii (Turner) Decne.12/01/1934NMNHBOTANYunchanged33,509.430
Chondria decipiens Kylin05/25/1970NMNHBOTANYunchanged20,550.430
Chara hispida L.NMNHBOTANYunchanged0
Schizothrix mexicana Gomont01/01/1952NMNHBOTANYunchanged27,269.430
Palisada thuyoides (Kützing) Cassano et al.02/03/1973NMNHBOTANYunchanged19,565.430
Hypnea valentiae (Turner) Mont.01/19/1962NMNHBOTANYunchanged23,598.430
Dictyopteris justii J.V.Lamouroux11/09/1934NMNHBOTANYunchanged33,531.430
Palisada thuyoides (Kützing) Cassano et al.02/03/1973NMNHBOTANYunchanged19,565.430
Hypnea musciformis (Wulfen) J.V.Lamouroux10/01/1977NMNHBOTANYunchanged17,864.430
Halopteris filicinaNMNHBOTANYunchanged0
Oscillatoria submembranacea Ardiss. & Strafforello ex Gomont10/28/1894NMNHBOTANYunchanged48,152.430
Valonia aegagropila C. Agardh06/16/1967NMNHBOTANYunchanged21,624.430
Printzina lagenifera (Hildebrand) R.H. Thompson & Wujek12/26/1960NMNHBOTANYunchanged23,987.430
Schizothrix mexicana GomontNMNHBOTANYunchanged0
Spirogyra sp.05/20/1942NMNHBOTANYunchanged30,782.430
Chlorodesmis hildebrandtiiNMNHBOTANYunchanged0
Microcoleus lyngbyaceus Kütz. ex Forti04/29/1949NMNHBOTANYunchanged28,246.430
Phyllophora crispa var. nervosa01/01/1806NMNHBOTANYunchanged80,594.430
Gymnogongrus johnstonii04/21/1974NMNHBOTANYunchanged19,123.430
Indet. sp.05/13/1979NMNHBOTANYunchanged17,275.430
Ulva expansa02/05/1982NMNHBOTANYunchanged16,276.430
Corallina sp.NMNHBOTANYunchanged0
Hypnea cornuta (Kütz.) J. AgardhNMNHBOTANYunchanged0
Scenedesmus dimorphus03/01/1918NMNHBOTANYunchanged39,628.430
Chondria cnicophylla01/03/1954NMNHBOTANYunchanged26,536.430
Postelsia palmaeformis01/01/1885NMNHBOTANYunchanged51,739.430
Laurencia intricata J.V.Lamouroux05/01/1949NMNHBOTANYunchanged28,244.430
Microcoleus lyngbyaceus Kütz. ex Forti03/20/1954NMNHBOTANYunchanged26,460.430
Caulerpa cupressoides (Vahl) C. Agardh08/22/1985NMNHBOTANYunchanged14,982.430
Dictyota sp.02/18/1979NMNHBOTANYunchanged17,359.430
Halimeda opuntia (L.) J.V.Lamouroux02/18/1979NMNHBOTANYunchanged17,359.430
Weeksia digitata I.A. Abbott07/09/1962NMNHBOTANYunchanged23,427.430
Prasiola mexicana J. Agardh01/01/1955NMNHBOTANYunchanged26,173.430
Oedogonium inconspicuum09/28/1935NMNHBOTANYunchanged33,208.430
Wrangelia penicillata (C. Agardh) C. Agardh03/15/1974NMNHBOTANYunchanged19,160.430
Sargassum polyceratium Mont.11/12/1928NMNHBOTANYunchanged35,719.430
Weeksia digitata I.A. Abbott08/06/1963NMNHBOTANYunchanged23,034.430
Microcoleus lyngbyaceus Kütz. ex Forti12/23/1953NMNHBOTANYunchanged26,547.430
Sargassum muticum11/17/1982NMNHBOTANYunchanged15,991.430