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PalDat - Palynological Database

an online publication on recent pollen

Metasequoia glyptostroboides

Taxonomy: Gymnospermae, Pinales, Cupressaceae, Sequoioideae, Metasequoia

Published: 2020-02-24

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: -,  polarity: heteropolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): cup-shaped,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): -,  aperture number: 1,  aperture type: leptoma,  aperture condition: -,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: scabrate,  nexine: present,  sexine: present,  SEMornamentation SEM: microechinate, microverrucate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: papilla, adhering Ubisch bodies

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie; Bouchal, Johannes Martin

Pictures

equatorial view

1. equatorial view

equatorial view

2. equatorial view

polar view

3. polar view

polar view

4. polar view

equatorial view

5. equatorial view

exine surface

6. exine surface

papilla

7. papilla

dry pollen grains

8. dry pollen grains

distal polar view

9. distal polar view

equatorial view

10. equatorial view

exine surface,proximal polar view

11. exine surface, proximal polar view

Picture legend

  1. equatorial view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
  2. equatorial view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
  3. polar view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
  4. polar view - fresh, rehydrated (water) & sputter coated with gold & critical point dried, photographer: Halbritter, H.
  5. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. papilla - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  9. distal polar view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  10. equatorial view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  11. exine surface, proximal polar view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.

Literature

  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
  • Kvavadze EV (1988) The pollen of Taxodiaceae and its peculiarities Metsniereba
  • Bouchal, JM; Denk T. (2020) Low taxonomic resolution of papillate Cupressaceae pollen (former Taxodiaceae) impairs their applicability for palaeo-habitat reconstruction Grana 59

Copyright and Citation

Cite this publication as:

Halbritter H., Bouchal J. 2020. Metasequoia glyptostroboides. In: PalDat - A palynological database. https://www.paldat.org/pub/Metasequoia_glyptostroboides/303651;jsessionid=29777B5FCCDABDD242A489D7164A962F; accessed 2020-04-07

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