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PalDat - Palynological Database

an online publication on recent pollen

Tropaeolum majus

Taxonomy: Spermatophyta, Geraniales, Tropaeolaceae, Tropaeolum

Published: 2005-06-01

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  size of hydrated pollen (LM): -,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: -,  polarity: isopolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: triangular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): interapertural area sunken,  aperture number: 3,  aperture type: -,  aperture condition: colpate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

LM  ornamentation LM: -,  nexine: -,  sexine: -,  SEM  ornamentation SEM: reticulate, heterobrochate, perforate,  suprasculpture SEM: -,  TEM  tectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: pollenkitt, primexine matrix,  reserves in cytoplasm: lipids,  cell number: 2-celled,  Ubisch bodies: present

Annotations: supratectae reticulum

Author(s) of diagnosis: Halbritter, H.; Weber, M.

Pictures

flower(s)

1. flower(s)

polar view

2. polar view

equatorial view

3. equatorial view

aperture

4. aperture

exine surface

5. exine surface

polar area

6. polar area

dry pollen grains

7. dry pollen grains

pollen wall with pollenkitt and primexine matrix

8. pollen wall with pollenkitt and primexine matrix

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  8. pollen wall with pollenkitt and primexine matrix - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.

Literature

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Copyright and Citation

Cite this publication as:

Halbritter H., Weber M. 2005. Tropaeolum majus. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Tropaeolum_majus/109256;jsessionid=7D96DA3DD20C2CE6AE6C40AD37A4D92C; accessed 2025-01-26

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