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PalDat - Palynological Database

an online publication on recent pollen

Juniperus communis

Taxonomy: Spermatophyta, Pinales, Cupressaceae, Juniperus

Published: 2005-06-01

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 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: ulcerate,  polarity: heteropolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  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: -,  aperture condition: ulcerate,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Annotations: ulcus inconspicous, Ubisch-bodies attached to pollen surface

Author(s) of diagnosis: Halbritter, H.

Pictures

hydrated pollen grains

1. hydrated pollen grains

polar distal view

2. polar distal view

polar proximal view

3. polar proximal view

ulcus

4. ulcus

exine surface (with adhering Ubisch-bodies)

5. exine surface (with adhering Ubisch-bodies)

dry pollen grains

6. dry pollen grains

Picture legend

  1. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. polar distal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. polar proximal view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. ulcus - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. exine surface (with adhering Ubisch-bodies) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H. 2005. Juniperus communis. In: PalDat - A palynological database. https://www.paldat.org/pub/Juniperus_communis/100314;jsessionid=A0950E4B279BF0701D112EF8D57A77B8; accessed 2024-04-16

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