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PalDat - Palynological Database

an online publication on recent pollen

Gnetum gnemon

Taxonomy: Gymnospermae, Gnetales, Gnetaceae, Gnetum

Published: 2015-04-09

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: inaperturate,  polarity: -,  shape: -,  outline in polar view: -,  shape (dry pollen): -,  outline in polar view (dry pollen): -,  infoldings (dry pollen): not infolded,  aperture number: none,  aperture type: no aperture,  aperture condition: inaperturate,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Annotations

orientation unknown, egg-shaped (prolate or oblate)

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen

1. hydrated pollen

hydrated pollen

2. hydrated pollen

exine surface

3. exine surface

dry pollen

4. dry pollen

exine surface,dry pollen

5. exine surface, dry pollen

Ubisch bodies on locule wall

6. Ubisch bodies on locule wall

Picture legend

  1. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  5. exine surface, dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  6. Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H. 2015. Gnetum gnemon. In: PalDat - A palynological database. https://www.paldat.org/pub/Gnetum_gnemon/300040;jsessionid=078E0341614E22836C482DDA3E0CDCCC; accessed 2018-11-20