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PalDat - Palynological Database

an online publication on recent pollen

Circaea lutetiana

Taxonomy: Angiospermae, Myrtales, Onagraceae, Circaea

Published: 2016-11-24

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: porate,  polarity: heteropolar,  shape: oblate,  outline in polar view: triangular,  shape (dry pollen): oblate,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): interapertural area sunken,  aperture number: 3,  aperture type: porus,  aperture condition: porate,  aperture peculiarities: annulus, angulaperturate

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: rugulate, perforate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: viscin threads

Miscellaneous

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

Annotations

short viscin threads rise only from one (proximal) pole

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

flower(s)

1. flower(s)

polar view (distal)

2. polar view (distal)

polar view (proximal)

3. polar view (proximal)

equatorial view

4. equatorial view

aperture

5. aperture

exine surface

6. exine surface

insertion of viscin thread

7. insertion of viscin thread

dry pollen grains

8. dry pollen grains

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. polar view (proximal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. 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. insertion of viscin thread - 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

  • Punt W, Rovers J, Hoen PP (2003) Onagraceae. The Northwest European Pollen Flora 67. Rev Palaeobot Palynol 123: 107-161
  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143

Copyright and Citation

Cite this publication as:

Halbritter H. 2016. Circaea lutetiana. In: PalDat - A palynological database. https://www.paldat.org/pub/Circaea_lutetiana/302402;jsessionid=879EB73335229FE3C6401AC527F90CA9; accessed 2018-11-21

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