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PalDat - Palynological Database

an online publication on recent pollen

Tilia platyphyllos

Taxonomy: Angiospermae, Malvales, Malvaceae, Tilia

Published: 2016-11-29

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): cup-shaped,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): no suitable term,  aperture number: 3,  aperture type: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: brevicolpus

Ornamentation and Structure

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

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

Pictures

polar view

1. polar view

detail of aperture

2. detail of aperture

exine surface

3. exine surface

polar view of dry pollen grain

4. polar view of dry pollen grain

dry pollen grain in equatorial view

5. dry pollen grain in equatorial view

pollen grains and part of tapetum wall (bottom)

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

hydrated pollen grain

7. hydrated pollen grain

aperture

8. aperture

detail of pollen wall

9. detail of pollen wall

aperture

10. aperture

pollenwall (left) and tapetum wall with Ubisch bodies

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

Ubisch bodies on locule wall

12. Ubisch bodies on locule wall

Picture legend

  1. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. exine surface - fresh, critical point dried, photographer: Halbritter, H.
  4. polar view of dry pollen grain - dry, sputter coated with gold, photographer: Halbritter, H.
  5. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
  6. pollen grains and part of tapetum wall (bottom) - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  7. hydrated pollen grain - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  8. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  9. detail of pollen wall - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
  10. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  11. pollenwall (left) and tapetum wall with Ubisch bodies - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
  12. 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. 2016. Tilia platyphyllos. In: PalDat - A palynological database. https://www.paldat.org/pub/Tilia_platyphyllos/302531;jsessionid=9A1D7E15A577A711235E8C8040E233AF; accessed 2018-11-15

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