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PalDat - Palynological Database

an online publication on recent pollen

Populus tremula

Taxonomy: Spermatophyta, Salicales, Salicaceae, Populus

Published: 2005-06-01

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): -,  size of hydrated pollen (LM): -,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: -,  polarity: -,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: none,  aperture type: -,  aperture condition: -,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, microreticulate,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: monolayered,  wall peculiarities: -,  supratectal element: -


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

Annotations: The exine ruptures irregularly when swelling.

Author(s) of diagnosis: Halbritter, H.


hydrated pollen grain

1. hydrated pollen grain

exine surface

2. exine surface

exine surface (more expanded and ruptured)

3. exine surface (more expanded and ruptured)

dry pollen grains

4. dry pollen grains

Picture legend

  1. hydrated pollen grain - fresh, DMP & critical point dried, photographer: Halbritter, H.
  2. exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
  3. exine surface (more expanded and ruptured) - fresh, DMP & critical point dried, photographer: Halbritter, H.
  4. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.


    Copyright and Citation

    Cite this publication as:

    Halbritter H. 2005. Populus tremula. In: PalDat - A palynological database.;jsessionid=79C2776B94C72D2F83A0FC2FDFB8CB5C; accessed 2020-08-14

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