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an online publication on recent pollen

Cyperus capitatus

Taxonomy: Angiospermae, Poales, Cyperaceae, Cyperus

Published: 2016-02-11

Pollen Description

Shape, Size and Aperture

pollen unit: tetrad,  dispersal unit and peculiarities: pseudomonad,  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: tetrad,  polarity: heteropolar,  P/E-ratio: prolate,  shape: -,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): aperture(s) sunken,  aperture number: number varies,  aperture type: poroid,  aperture condition: poroidate, colpate,  aperture peculiarities: aperture membrane ornamented, heteroaperturate

Ornamentation and Structure

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

Miscellaneous

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

Annotations: number of apertures mostly 6, equatorial apertures elongated (colpi), distal aperture a poroid

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pseudomonads

1. hydrated pseudomonads

polar proximal view (oblique)

2. polar proximal view (oblique)

equatorial view

3. equatorial view

oblique view

4. oblique view

equatorial aperture (colpus)

5. equatorial aperture (colpus)

distal aperture (poroid)

6. distal aperture (poroid)

exine surface

7. exine surface

dry pseudomonads

8. dry pseudomonads

Ubisch bodies on inner anther wall

9. Ubisch bodies on inner anther wall

Picture legend

  1. hydrated pseudomonads - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. polar proximal view (oblique) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. oblique view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. equatorial aperture (colpus) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. distal aperture (poroid) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. dry pseudomonads - dry, sputter coated with gold, photographer: Halbritter, H.
  9. Ubisch bodies on inner anther wall - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H. 2016. Cyperus capitatus. In: PalDat - A palynological database. https://www.paldat.org/pub/Cyperus_capitatus/300440;jsessionid=BAB98AC07E8B9A97F4E62B07F46A9876; accessed 2024-05-03

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