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an online publication on recent pollen

Allium cepa

Taxonomy: Spermatophyta, Asparagales, Alliaceae, Allium

Published: 2005-06-01

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): -,  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: sulcate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: elliptic,  dominant orientation (LM): -,  P/E-ratio (dry pollen): oblate,  shape (dry pollen): -,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): -,  aperture number: 1,  aperture type: -,  aperture condition: sulcate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: psilate,  nexine: -,  sexine: -,  SEMornamentation SEM: striate, perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: ornamentation striate to rugulate and perforate

Author(s) of diagnosis: Halbritter, H.

Pictures

inflorescence(s)

1. inflorescence(s)

hydrated pollen grains

2. hydrated pollen grains

polar distal view

3. polar distal view

polar proximal view

4. polar proximal view

detail of sulcus

5. detail of sulcus

exine surface

6. exine surface

exine surface

7. exine surface

dry pollen grains

8. dry pollen grains

Picture legend

  1. inflorescence(s), photographer: Halbritter, H.
  2. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. polar distal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. polar proximal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. detail of sulcus - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

  • Bogdanović S, Brullo S, Mitić B, Salmeri C (2008) A new species of Allium (Alliaceae) from Dalmatia, Croatia Botanical Journal of the Linnean Society 158: 106-114

Copyright and Citation

Cite this publication as:

Halbritter H. 2005. Allium cepa. In: PalDat - A palynological database. https://www.paldat.org/pub/Allium_cepa/100690;jsessionid=5C894CB9AEF0E0F7C267D2D1D12E21E7; accessed 2024-03-28

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