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PalDat - Palynological Database

an online publication on recent pollen

Cryptomeria japonica

Taxonomy: Spermatophyta, Pinales, Cupressaceae, Cryptomeria

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),  pollen class: -,  polarity: heteropolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 1,  aperture type: leptoma,  aperture condition: -,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: granulate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: papilla

Miscellaneous

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

Annotations

Exine ruptures near papilla, when pollen get wet (before germination); protoplast with inner sporoderm layer becomes totally separated.

Author(s) of diagnosis: Halbritter, H.

Pictures

shoot with cone(s)

1. shoot with cone(s)

polar view (distal)

2. polar view (distal)

equatorial view

3. equatorial view

leptoma with papilla

4. leptoma with papilla

papilla

5. papilla

exine surface

6. exine surface

"empty exine" of a dehisced pollen grain

7. "empty exine" of a dehisced pollen grain

dry pollen grains

8. dry pollen grains

Picture legend

  1. shoot with cone(s), photographer: Halbritter, H.
  2. polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. leptoma with papilla - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. papilla - 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. "empty exine" of a dehisced pollen grain - 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.

Literature

    Copyright and Citation

    Cite this publication as:

    Halbritter H. 2005. Cryptomeria japonica. In: PalDat - A palynological database. https://www.paldat.org/pub/Cryptomeria_japonica/100306;jsessionid=4569C797333C429D46A2EF127BB16F07; accessed 2020-05-26

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