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PalDat - Palynological Database

an online publication on recent pollen

Didymaea mexicana

Taxonomy: Angiospermae, Gentianales, Rubiaceae, Didymaea

Published: 2016-02-18

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colpate,  polarity: isopolar,  shape: oblate,  outline in polar view: circular,  shape (dry pollen): prolate,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 5,  aperture type: colpus,  aperture condition: colpate, pentacolpate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

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

Miscellaneous

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

Annotations

shape hydrated oblate to spheroidal

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen

1. hydrated pollen

polar view

2. polar view

equatorial view

3. equatorial view

oblique view

4. oblique view

aperture

5. aperture

exine surface

6. exine surface

exine surface

7. exine surface

polar area

8. polar area

dry pollen,polar view

9. dry pollen, polar view

dry pollen,equatorial view

10. dry pollen, equatorial view

Picture legend

  1. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. oblique view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. dry pollen, polar view - dry, sputter coated with gold, photographer: Halbritter, H.
  10. dry pollen, equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.

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

Copyright and Citation

Cite this publication as:

Halbritter H. 2016. Didymaea mexicana. In: PalDat - A palynological database. https://www.paldat.org/pub/Didymaea_mexicana/300450;jsessionid=49F17C36D5002DE9AE947971D9781C48; accessed 2019-11-17