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an online publication on recent pollen

Acer obtusatum

Taxonomy: Angiospermae, Sapindales, Sapindaceae, Acer

Annotations: according to "The Plant List" synonym to Acer opalus ssp. obtusatum

Published: 2021-01-05

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, 31-35 µm,  shortest polar axis in equatorial view (LM): 26-30 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  shortest diameter in equatorial or polar view (LM): 31-35 µm,  longest diameter in equatorial or polar view (LM): 31-35 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: aperture membrane psilate

Ornamentation and Structure

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

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie; Auer, Waltraud

Pictures

hydrated pollen

1. hydrated pollen

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

polar view

4. polar view

detail of aperture

5. detail of aperture

exine surface

6. exine surface

polar area

7. polar area

dry pollen grains

8. dry pollen grains

Picture legend

  1. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  2. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  3. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  4. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. detail of aperture - 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. polar area - 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.

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Copyright and Citation

Cite this publication as:

Halbritter H., Auer W. 2021. Acer obtusatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Acer_obtusatum/304879;jsessionid=B94399D00E2EEABC598FB44A3A40CB33; accessed 2024-03-29

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