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PalDat - Palynological Database

an online publication on recent pollen

Corylus colurna

Taxonomy: Angiospermae, Fagales, Betulaceae, Corylus

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Corylus-colurna.htm

Published: 2020-12-28

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  size of hydrated pollen (LM): 26-30 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 26-30 µm,  longest diameter in equatorial or polar view (LM): 26-30 µm,  pollen class: porate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 3,  aperture type: porus,  aperture condition: triporate, porate,  aperture peculiarities: operculum, annulus, oncus

Ornamentation and Structure

LM  ornamentation LM: psilate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: rugulate, microechinate,  suprasculpture SEM: -,  TEM  tectum: eutectate,  infratectum: granular,  foot layer: continuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: absent,  reserves in cytoplasm: starch,  cell number: 2-celled,  Ubisch bodies: present

Author(s) of diagnosis: Halbritter, Heidemarie; Diethart, Bernadette; Auer, Waltraud

Pictures

male flowers of Corylus colurna

1. male flowers of Corylus colurna

pollen grain with generative cell

2. pollen grain with generative cell

upper focus

3. upper focus

optical section

4. optical section

lower focus

5. lower focus

hydrated pollen

6. hydrated pollen

hydrated pollen

7. hydrated pollen

hydrated pollen

8. hydrated pollen

polar view

9. polar view

equatorial view

10. equatorial view

aperture

11. aperture

exine surface

12. exine surface

dry pollen grains

13. dry pollen grains

slightly oblique polar view of dry pollen grain

14. slightly oblique polar view of dry pollen grain

equatorial view

15. equatorial view

anther wall with Ubisch bodies

16. anther wall with Ubisch bodies

interapertural area of pollen wall

17. interapertural area of pollen wall

anther wall with Ubisch bodies in loculus

18. anther wall with Ubisch bodies in loculus

Picture legend

  1. male flowers of Corylus colurna, photographer: Halbritter, H.
  2. pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
  3. upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  4. optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
  5. lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  6. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  7. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  8. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  9. polar view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  10. equatorial view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  11. aperture - fresh, DMP & critical point dried, photographer: Halbritter, H.
  12. exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
  13. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  14. slightly oblique polar view of dry pollen grain - dry, sputter coated with gold, photographer: Diethart, B.
  15. equatorial view - dry, sputter coated with gold, photographer: Diethart, B.
  16. anther wall with Ubisch bodies - dry, sputter coated with gold, photographer: Diethart, B.
  17. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  18. anther wall with Ubisch bodies in loculus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.

Literature

  • Blackmore S, Steinmann JAJ, Hoen PP, Punt W (2003) Betulaceae and Corylaceae. In: The Northwest European Pollen Flora 65. Rev Palaeobot Palynol 123: 71-98
  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180
  • 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., Diethart B., Auer W. 2020. Corylus colurna. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Corylus_colurna/304843; accessed 2025-04-27

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