Pollenatlas

Dieser POLLENATLAS enthält derzeit bereits über 90 verschiedene Pollentafeln mit Bildern und Beschreibungen der Pollen, die öfters in Luftproben anzutreffen sind.

Autorenschaft: Der Pollenatlas wurde von Edith Bucher und Veronika Kofler (Biologisches Labor der Landesagentur für Umwelt, Bozen) erstellt, ausgearbeitet und zur Verfügung gestellt.

  • Quercus ilex

    pollen in optical section (1)
    pollen in optical section (1)
    exine sculpture, apertures (1)
    exine sculpture, apertures (1)
    pollen in optical section (2)
    pollen in optical section (2)
    exine sculpture, apertures (2)
    exine sculpture, apertures (2)

    species: Quercus ilex (Holm Oak)
    plant family: Fagaceae
    at aerobiological analyses usually achieved determination level: (Quercus ilex), Quercus, (Fagaceae)

    photos: Landesagentur für Umwelt, Bozen (Italy)

    description:
    outline:
    in polar view circular or insinuated hexagonal, side view elliptical.
    size: polar axis: 22.3 (20.8-25.7) µm, equatorial axis: 24.7 (23.7-25.7) µm.
    apertures: tri-zono-colp(or)ate with narrow colpi.
    pollen wall: thin, scabrate exine. Thin intine, often convex thickened underneath the colpi.
    additional attribute: granulous plasma
    note: similar pollen: other Quercus-species

    remarks to the plant:
    The evergreen Holm Oak is a characteristic tree of the Mediterranean Macchia. Unlike most of the other Quercus species, the leaves are not lobed - some of the leaves are spiny - hence its specific name, derived from the Latin name of the holly. Flowering time is April/May. Male staminate flowers are elongated catkins, the females are long-stalked and stand single or in small groups.

  • Quercus pubescens

    pollen in optical section (1) - lateral views
    pollen in optical section (1) - lateral views
    exine sculpture and apertures (1)
    exine sculpture and apertures (1)
    pollen in optical section (2)
    pollen in optical section (2)
    exine sculpture and apertures (2)
    exine sculpture and apertures (2)

    species: Quercus pubescens (White Oak, Downy Oak)
    plant family: Fagaceae
    at aerobiological analyses usually achieved determination level: Quercus, (Fagaceae)

    photos: Landesagentur für Umwelt, Bozen (Italy)

    description:
    outline:
    in polar view rounded triangular, side view elliptical.
    size: polar axis: 28.2 (26-30) µm, equatorial axis: 34.0 (32-37) µm.
    apertures: tricolpate with acute, short, narrow, partly protruding colpi.
    pollen wall: thin, scabrate to verrucate exine. Thin intine, thickened underneath the colpi, protruding.
    note: similar pollen: other Quercus-species

    remarks to the plant:
    White oak is a Mediterranean species, growing on dry, stony slopes where it often forms characteristic societies of bright woods with shrubs. Obovate to elliptic, but very various leaves with mostly 4 lobes on every side stand on hairy twigs. Lamina are dark-green above, glabrous, but pale-green and tomentose beneath. Flowering time is April/May. Male flowers sit in thin, drooping catkins. Fruits in 2-5 clusters, acorns egg-shaped.

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