1. species: Microperella quercus Höhn.

    Taxon group: fungus

    Microperella quercus Höhn.
    Microperella quercus

  2. species: Arnoldiola quercus (Binnie, 1877)

    Taxon group: insect - true fly (Diptera)

    Arnoldiola quercus
    Arnoldiola quercus (Binnie, 1877)

  3. species: Mycetinis querceus (Britzelm.) Antonín & Noordel.

    Taxon group: fungus

    Mycetinis querceus (Britzelm.) Antonín & Noordel.
    Mycetinis querceus

  4. species: Orchestes (Orchestes) quercus (Linnaeus, 1758)

    Taxon group: insect - beetle (Coleoptera)

    Orchestes (Orchestes) quercus
    Orchestes (Orchestes) quercus (Linnaeus, 1758)

  5. species: Quercus petraea (Matt.) Liebl.  – Sessile Oak

    Sessile Oak, Durmast Oak

    Taxon group: flowering plant

    Quercus petraea
    Quercus
    Quercus petraea (Matt.) Liebl.

  6. species: Quercus ilex L.  – Evergreen Oak

    Evergreen Oak, Holm Oak

    Taxon group: flowering plant

    Quercus ilex
    Quercus ilex L.
    Quercus

  7. species: Sphaerosoma quercus Samouelle, 1819

    Taxon group: insect - beetle (Coleoptera)

    Sphaerosoma quercus
    Sphaerosoma quercus Samouelle, 1819

  8. species: Quercus chrysolepis Liebm.  – California Live-Oak

    Taxon group: flowering plant

    Quercus chrysolepis Liebm.
    Quercus chrysolepis
    Quercus

  9. species: Elsinoë quercus-ilicis (G. Arnaud) Jenkins & Goid.

    Taxon group: fungus

    Elsinoë quercus-ilicis (G. Arnaud) Jenkins & Goid.
    Elsinoë quercus-ilicis

  10. species: Ascochyta quercus-ilicis Güssow

    Taxon group: fungus

    Ascochyta quercus-ilicis Güssow
    Ascochyta quercus-ilicis