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PalDat - Palynological Database

an online publication on recent pollen

Tilia platyphyllos

Taxonomy: Angiospermae, Malvales, Malvaceae, Tilioideae, Tilia

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Tilia-platyphyllos.htm, https://wu.jacq.org/WU0151970

Published: 2024-02-13

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): 21-25 µm, 31-35 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 31-35 µm,  longest diameter in equatorial or polar view (LM): 31-35 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: oblate,  shape: convex triangular,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): -,  shape (dry pollen): cup-shaped,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): no suitable term,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: brevicolporus

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: present,  sexine: present,  SEMornamentation SEM: homobrochate, perforate, microreticulate,  suprasculpture SEM: -,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: pollen in dry condition: polar area sunken; endexine restricted to apertures

Author(s) of diagnosis: Halbritter, Heidemarie; Hesse, Michael; Heigl, Helmut; Auer, Waltraud; Geier, Christian; Bouchal, Johannes Martin; Grímsson, Friðgeir

Pictures

hydrated pollen

1. hydrated pollen

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

acetolyzed pollen,polar view

4. acetolyzed pollen, polar view

acetolyzed pollen,equatorial view

5. acetolyzed pollen, equatorial view

polar view

6. polar view

detail of aperture

7. detail of aperture

exine surface

8. exine surface

polar view of dry pollen grain

9. polar view of dry pollen grain

dry pollen grain in equatorial view

10. dry pollen grain in equatorial view

acetolyzed pollen,polar view

11. acetolyzed pollen, polar view

acetolyzed pollen,equatorial view

12. acetolyzed pollen, equatorial view

acetolyzed pollen,exine surface

13. acetolyzed pollen, exine surface

acetolyzed pollen,exine surface

14. acetolyzed pollen, exine surface

acetolyzed pollen,aperture

15. acetolyzed pollen, aperture

pollen grains and part of tapetum wall (bottom)

16. pollen grains and part of tapetum wall (bottom)

hydrated pollen grain

17. hydrated pollen grain

aperture

18. aperture

detail of pollen wall

19. detail of pollen wall

aperture

20. aperture

pollenwall (left) and tapetum wall with Ubisch bodies

21. pollenwall (left) and tapetum wall with Ubisch bodies

Ubisch bodies on locule wall

22. Ubisch bodies on locule wall

Picture legend

  1. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  2. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  3. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  4. acetolyzed pollen, polar view - dry, acetolyzed & glycerine, unstained, photographer: Geier, C.
  5. acetolyzed pollen, equatorial view - dry, acetolyzed & glycerine, unstained, photographer: Geier, C.
  6. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, critical point dried, photographer: Halbritter, H.
  9. polar view of dry pollen grain - dry, sputter coated with gold, photographer: Halbritter, H.
  10. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
  11. acetolyzed pollen, polar view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  12. acetolyzed pollen, equatorial view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  13. acetolyzed pollen, exine surface - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  14. acetolyzed pollen, exine surface - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  15. acetolyzed pollen, aperture - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
  16. pollen grains and part of tapetum wall (bottom) - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  17. hydrated pollen grain - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  18. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  19. detail of pollen wall - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  20. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  21. pollenwall (left) and tapetum wall with Ubisch bodies - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  22. Ubisch bodies on locule wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.

Literature

  • Anderson GJ (1976) The pollination biology of Tilia. Amer J Bot 63: 1203-1212
  • Chambers TC, Godwin H (1961) The fine structure of the pollen wall of Tilia platyphyllos. New Phytol 3?: 393-399
  • Chambers TC, Godwin H (1971) Scanning electron microscopy of Tilia pollen. New Phytol 70: 687-692
  • Hesse M (1993) Pollenkitt development and composition in Tilia platyphyllos (Tiliaceae) analysed by conventional and energy filtering TEM. Pl Syst Evol, Suppl 7: 39-52

Copyright and Citation

Cite this publication as:

Halbritter H., Hesse M., Heigl H., Auer W., Geier C., Bouchal J., Grímsson F. 2024. Tilia platyphyllos. In: PalDat - A palynological database. https://www.paldat.org/pub/Tilia_platyphyllos/306672; accessed 2024-11-01

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