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an online publication on recent pollen

Amydrium medium

Taxonomy: Spermatophyta, Arales, Araceae, Amydrium

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

Ornamentation and Structure

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

Miscellaneous

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

Annotations: endexine extremely thin

Author(s) of diagnosis: Halbritter, H.; Weber, M.

Pictures

slightly oblique polar view

1. slightly oblique polar view

detail of aperture

2. detail of aperture

exine surface

3. exine surface

dry pollen grains

4. dry pollen grains

transition of aperture and interapertural zone (left)

5. transition of aperture and interapertural zone (left)

hydrated pollen grains

6. hydrated pollen grains

pollen wall

7. pollen wall

germinating pollen grain (aperture)

8. germinating pollen grain (aperture)

Picture legend

  1. slightly oblique polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  5. transition of aperture and interapertural zone (left), glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  6. hydrated pollen grains, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  7. pollen wall, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  8. germinating pollen grain (aperture), glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H., Weber M. 2005. Amydrium medium. In: PalDat - A palynological database. https://www.paldat.org/pub/Amydrium_medium/100501;jsessionid=4C8D74044F5D34A80F95FE65A9AA481F; accessed 2024-04-25

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