The timing calendar

• Polyscias OahuensisAraliaceae · n=11 · 1909–1950
• Dianella sandwicensisAsphodelaceae · n=9 · 1930–1987 · too few to read as a pattern
• Aleurites MoluccanusEuphorbiaceae · n=13 · 1948–1991
• PeleaRutaceae · n=4 · 1910–1974 · too few to read as a pattern
• Euphorbia CelastroidesEuphorbiaceae · n=8 · 1949–1966 · too few to read as a pattern
• Dodonaea Viscosa Subsp. ViscosaSapindaceae · n=8 · 1911–1971 · too few to read as a pattern
• Cassia fistulaFabaceae · n=3 · 1962–2004 · too few to read as a pattern
• Bidens pilosaAsteraceae · n=3 · 1928–2017 · too few to read as a pattern
• Hibiscadelphus GiffardianusMalvaceae · n=3 · 1911–1911 · too few to read as a pattern
• Zanthoxylum KauaenseRutaceae · n=4 · 1910–1974 · too few to read as a pattern
• Euphorbia OlowaluanaEuphorbiaceae · n=3 · 1949–1949 · too few to read as a pattern
• Geniostoma HedyosmifoliumLoganiaceae · n=3 · 1912–1949 · too few to read as a pattern
• Cyanea FloribundaLobeliaceae · n=3 · 1910–1912 · too few to read as a pattern
• PittosporumPittosporaceae · n=2 · 1963–1974 · too few to read as a pattern
• Melicope ClusiifoliaRutaceae · n=2 · 1895–1909 · too few to read as a pattern
• Melicope VolcanicaRutaceae · n=2 · 1910–1910 · too few to read as a pattern
• Polyscias SandwicensisAraliaceae · n=2 · 1909–1910 · too few to read as a pattern
• Pittosporum GayanumPittosporaceae · n=2 · 1911–1911 · too few to read as a pattern
• Geniostoma HelleriLoganiaceae · n=2 · 1895–1895 · too few to read as a pattern
• Zanthoxylum Dipetalum Var. TomentosumRutaceae · n=2 · 1912–1912 · too few to read as a pattern
• Leucaena Leucocephala Subsp. LeucocephalaFabaceae · n=2 · 1971–1971 · too few to read as a pattern
• Gouldia terminalisRubiaceae · n=7 · 1974–1974 · too few to read as a pattern
• Tetraplasandra KauaiensisAraliaceae · n=5 · 1910–1912 · too few to read as a pattern
• CyaneaCampanulaceae · n=4 · 1974–1974 · too few to read as a pattern
• Cyanea KunthianaLobeliaceae · n=3 · 1910–1911 · too few to read as a pattern
• Pittosporum HosmeriPittosporaceae · n=3 · 1909–1912 · too few to read as a pattern
• PlantagoPlantaginaceae · n=2 · 1948–1974 · too few to read as a pattern
• Tetramolopium HumileAsteraceae · n=2 · 1966–1978 · too few to read as a pattern
• WickstroemiaThymelaeaceae · n=2 · 1974–1974 · too few to read as a pattern
• Lysimachia GlutinosaPrimulaceae · n=2 · 1909–1974 · too few to read as a pattern
• Metrosideros PolymorphaMyrtaceae · n=2 · 1958–1965 · too few to read as a pattern
• Osteomeles AnthyllidifoliaRosaceae · n=2 · 1971–1974 · too few to read as a pattern
• Myoporum SandwicenseScrophulariaceae · n=2 · 1910–1966 · too few to read as a pattern
• Myrsine LanaiensisMyrsinaceae · n=2 · 1910–1912 · too few to read as a pattern
• Myrsine LessertianaMyrsinaceae · n=2 · 1909–1910 · too few to read as a pattern
• Geniostoma TinifoliumLoganiaceae · n=2 · 1910–1926 · too few to read as a pattern
• Pittosporum GlabrumPittosporaceae · n=2 · 1864–1908 · too few to read as a pattern
• Acacia confusaFabaceae · n=1 · 1989–1989 · too few to read as a pattern
• Myrsine lanaiensisPrimulaceae · n=1 · 1974–1974 · too few to read as a pattern
• MelastomaMelastomataceae · n=1 · 1958–1958 · too few to read as a pattern
• Myrsine SandwicensisPrimulaceae · n=1 · 1974–1974 · too few to read as a pattern
• Scaevola GaudichaudianaGoodeniaceae · n=1 · 1974–1974 · too few to read as a pattern
• Coprosma FoliosaRubiaceae · n=1 · 1974–1974 · too few to read as a pattern
• Melicope AnisataRutaceae · n=1 · 1974–1974 · too few to read as a pattern
• StypheliaEricaceae · n=1 · 1974–1974 · too few to read as a pattern
• Coprosma WaimeaeRubiaceae · n=1 · 1974–1974 · too few to read as a pattern
• Cyrtandra WaianaeensisGesneriaceae · n=1 · 1970–1970 · too few to read as a pattern
• Antidesma PulvinatumPhyllanthaceae · n=1 · 1974–1974 · too few to read as a pattern
• Ilex AnomalaAquifoliaceae · n=1 · 1974–1974 · too few to read as a pattern
• Psychotria GreenwelliaeRubiaceae · n=1 · 1974–1974 · too few to read as a pattern
• Geranium ArboreumGeraniaceae · n=1 · 1966–1966 · too few to read as a pattern
• Hura CrepitansEuphorbiaceae · n=1 · 1969–1969 · too few to read as a pattern
• Pithecellobium DulceFabaceae · n=1 · 2011–2011 · too few to read as a pattern
• Leucaena LeucocephalaFabaceae · n=1 · 1989–1989 · too few to read as a pattern
• Carex HispidaCyperaceae · n=1 · 1981–1981 · too few to read as a pattern
• Pisonia UmbelliferaNyctaginaceae · n=1 · 1961–1961 · too few to read as a pattern
• Dracaena KonaensisAsparagaceae · n=1 · 1939–1939 · too few to read as a pattern
• Dubautia Linearis Subsp. HillebrandiiAsteraceae · n=1 · 1949–1949 · too few to read as a pattern
• Lipochaeta RockiiAsteraceae · n=1 · 1959–1959 · too few to read as a pattern
• Parkinsonia AculeataFabaceae · n=1 · 1962–1962 · too few to read as a pattern
• Bidens CosmoidesAsteraceae · n=1 · 1950–1950 · too few to read as a pattern
• Eragrostis TenuifoliaPoaceae · n=1 · 1989–1989 · too few to read as a pattern
• Melicope KnudseniiRutaceae · n=1 · 1910–1910 · too few to read as a pattern
• Solanum MauritianumSolanaceae · n=1 · 1909–1909 · too few to read as a pattern
• Myrsine MedeciloaeMyrsinaceae · n=1 · 1895–1895 · too few to read as a pattern
• Melicope ReflexaRutaceae · n=1 · 1910–1910 · too few to read as a pattern
• Sophora ChrysophyllaFabaceae · n=1 · 1910–1910 · too few to read as a pattern
• Sicyos LanceoloideusCucurbitaceae · n=1 · 1926–1926 · too few to read as a pattern
• Melicope CruciataRutaceae · n=1 · 1895–1895 · too few to read as a pattern
• Metrosideros Polymorpha Var. LuteaMyrtaceae · n=1 · 1895–1895 · too few to read as a pattern
• Pittosporum KauaiensePittosporaceae · n=1 · 1909–1909 · too few to read as a pattern
• Antidesma ×KapuaePhyllanthaceae · n=1 · 1912–1912 · too few to read as a pattern
• Claoxylon SandwicenseEuphorbiaceae · n=1 · 1935–1935 · too few to read as a pattern
• Canavalia KauaiensisFabaceae · n=1 · 1895–1895 · too few to read as a pattern
• Clermontia ×LeptocladaLobeliaceae · n=1 · 1909–1909 · too few to read as a pattern
• Kadua Cordata Subsp. CordataRubiaceae · n=1 · 1940–1940 · too few to read as a pattern
• Bobea GaudichaudiiRubiaceae · n=1 · 1910–1910 · too few to read as a pattern
• Lipochaeta Connata Subsp. ConnataAsteraceae · n=1 · 1895–1895 · too few to read as a pattern
• Kadua ParvulaRubiaceae · n=1 · 1936–1936 · too few to read as a pattern
• Zanthoxylum DipetalumRutaceae · n=1 · 1911–1911 · too few to read as a pattern

Most species are marked too few to read as a pattern. That is the honest state of the evidence today, and it is shown rather than hidden. Loading more specimens and scoring more of them is exactly what closes the gap.