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.

  • Dactylis glomerata

    pollen in optical section (1)
    pollen in optical section (1)
    exine sculptur and aperture (1)
    exine sculptur and aperture (1)
    pollen in optical section (2)
    pollen in optical section (2)
    exine sculpture and apertures (2)
    exine sculpture and apertures (2)

    species: Dactylis glomerata (Cock’s-foot, Orchard Grass)
    plant family: Poaceae
    at aerobiological analyses usually achieved determination level: Poaceae

    photos: Landesagentur für Umwelt, Bozen (Italy)

    description:
    outline:
    circular to oval
    size: 35.1 (34-36) µm
    apertures: monoporate pollen, porus with operculum and anulus
    pollen wall: thin, scabrate exine; intine often thicker than the exine, in most cases thicker on the side where the porus appears.
    additional attribute: granular cytoplasma
    remark: The wind-pollinated family of grasses comprises a great number of species, whose pollen are hardly distinguishable with light microscopy. In aerobiological routine, solely the smaller pollen from wild grasses are thus separated from those bigger ones of the cultivated grasses (in particular maize and cultivated rye)

    remarks to the plant:
    Orchard grass or cocksfoot is worldwide one on the most valuable animal food grasses. It grows in meadows, pastures, shrubbery, and along waysides on almost all types of soil but best on heavier types, such as clays. The name giving panicles are erect and densely glomerate, often purple or reddish in colour, stamens creamy white or pink to purple. Main flowering period is May-June, but single plants can be seen in flower even in July and August.

  • Draba nemorosa

    pollen in optical section (1)
    pollen in optical section (1)
    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: Draba nemorosa (Woodland Whitlowgrass)
    plant family: Brassicaceae
    at aerobiological analyses usually achieved determination level: Brassicaceae

    photos: Landesagentur für Umwelt, Bozen (Italy)

    description:
    outline:
    circular
    size: polar axis: 18.8 (17-20) µm, equatorial axis 18.7 (17-20) µm
    apertures: tricolpate, colpi rounded at their end
    pollen wall: reticulate exine, with narrow meshes, scarcely becoming smaller towards the colpi. Muri of the reticulum with lines of tiny knobbles in top view. Open lumina of the reticulum at the edge of the colpi result in vague colpus outlines. Exine becomes thinner (with shorter columellae) towards the colpi.
    note: Pollen of Draba symbolizes the category of small Brassicaceae – pollen.

    remarks to the plant:
    Woodland Whitlowgrass is an Eurasiatic- North American weed, growing on walls, dry lawns, and devastated land. Its bright yellow flowers develop from April to June.

to the top