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PalDat - Palynological Database

an online publication on recent pollen

Lolium perenne

Taxonomy: Angiospermae, Poales, Poaceae, Lolium

Published: 2021-01-04

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, 26-30 µm, 31-35 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  shortest diameter in equatorial or polar view (LM): 26-30 µm,  longest diameter in equatorial or polar view (LM): 31-35 µm,  pollen class: ulcerate,  polarity: heteropolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 1,  aperture type: ulcus,  aperture condition: ulcerate,  aperture peculiarities: operculum, annulus

Ornamentation and Structure

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

Miscellaneous

pollen coatings: absent,  reserves in cytoplasm: starch,  cell number: 3-celled,  Ubisch bodies: present

Annotations: shape spheroidal to prolate

Author(s) of diagnosis: Halbritter, Heidemarie; Schneider, H.; Weber, M.; Auer, Waltraud

Pictures

flowers of Lolium perenne

1. flowers of Lolium perenne

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

hydrated pollen

4. hydrated pollen

polar distal view

5. polar distal view

equatorial view

6. equatorial view

aperture

7. aperture

exine surface

8. exine surface

dry pollen

9. dry pollen

pollen grain in cross section

10. pollen grain in cross section

pollen wall

11. pollen wall

porus with operculum

12. porus with operculum

Picture legend

  1. flowers of Lolium perenne, photographer: Schneider, H.
  2. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  3. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  4. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  5. polar distal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  10. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
  11. pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
  12. porus with operculum - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H., Schneider H., Weber M., Auer W. 2021. Lolium perenne. In: PalDat - A palynological database. https://www.paldat.org/pub/Lolium_perenne/304802;jsessionid=8435F53DD087A6635317C3E419DAC73B; accessed 2021-03-04

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