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PalDat - Palynological Database

an online publication on recent pollen

Knautia arvensis

Taxonomy: Spermatophyta, Dipsacales, Dipsacaceae, Knautia

Published: 2011-11-10

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  pollen class: porate,  polarity: isopolar,  shape: oblate,  outline in polar view: circular,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 3,  aperture type: -,  aperture condition: porate,  aperture peculiarities: operculum

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: echinate, microechinate, perforate,  TEMtectum: eutectate,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -

Miscellaneous

pollen coatings: -,  reserves in cytoplasm: -,  cell number: -,  Ubisch bodies: absent

Author(s) of diagnosis: Halbritter, H.; Svojtka, M.

Pictures

inflorescence(s)

1. inflorescence(s)

polar view (oblique)

2. polar view (oblique)

equatorial view

3. equatorial view

aperture

4. aperture

aperture

5. aperture

exine surface

6. exine surface

exine surface

7. exine surface

dry pollen grains

8. dry pollen grains

Picture legend

  1. inflorescence(s), photographer: Svojtka, M.
  2. polar view (oblique) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H., Svojtka M. 2011. Knautia arvensis. In: PalDat - A palynological database. https://www.paldat.org/pub/Knautia_arvensis/203959;jsessionid=A94DD30CB0461FACF9BB3B4AE33AA00D; accessed 2018-08-21

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