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PalDat - Palynological Database

an online publication on recent pollen

Allium ursinum

Taxonomy: Angiospermae, Asparagales, Amaryllidaceae, Allium

Links: http://flora.nhm-wien.ac.at/seiten-arten/allium-ursinum.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): 16-20 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  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): equatorial,  P/E-ratio (dry pollen): -,  shape (dry pollen): boat-shaped,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 1,  aperture type: sulcus,  aperture condition: sulcate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: psilate,  nexine: -,  sexine: -,  SEMornamentation SEM: rugulate, perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie; Aktuna, Gabriela; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

pollen grain after acetolysis

2. pollen grain after acetolysis

pollen grain with generative cell (asterisk) and vegetative nucleus

3. pollen grain with generative cell (asterisk) and vegetative nucleus

hydrated pollen

4. hydrated pollen

hydrated pollen

5. hydrated pollen

hydrated pollen

6. hydrated pollen

polar view (distal)

7. polar view (distal)

polar proximal  view

8. polar proximal view

equatorial view

9. equatorial view

detail of aperture

10. detail of aperture

exine surface

11. exine surface

dry pollen grains

12. dry pollen grains

dry pollen grain in polar view (distal)

13. dry pollen grain in polar view (distal)

dry pollen grain in polar view (proximal)

14. dry pollen grain in polar view (proximal)

pollen grains in cross section

15. pollen grains in cross section

interapertural area of pollen wall

16. interapertural area of pollen wall

apertural area of pollen wall

17. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

18. pollen wall at transition of aperture and interapertural area

Picture legend

  1. flower(s), photographer: Aktuna, G.
  2. pollen grain after acetolysis - fresh, acetolyzed, unstained, photographer: Aktuna, G.
  3. pollen grain with generative cell (asterisk) and vegetative nucleus - fixed, formalin-acetic-alcohol, aceto-carmine, photographer: Aktuna, G.
  4. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  5. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  6. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  7. polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. polar proximal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  13. dry pollen grain in polar view (distal) - dry, sputter coated with gold, photographer: Aktuna, G.
  14. dry pollen grain in polar view (proximal) - dry, sputter coated with gold, photographer: Aktuna, G.
  15. pollen grains in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  16. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  17. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  18. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.

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
  • 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., Aktuna G., Heigl H. 2020. Allium ursinum. In: PalDat - A palynological database. https://www.paldat.org/pub/Allium_ursinum/304744;jsessionid=5931710C0331E269EA062C173AABA3D9; accessed 2021-01-21

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