Circaea lutetiana
Taxonomy: Spermatophyta, Myrtales, Onagraceae, Circaea
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: heteropolar, P/E-ratio: oblate, shape: -, outline in polar view: triangular, dominant orientation (LM): -, P/E-ratio (dry pollen): oblate, shape (dry pollen): -, outline in polar view (dry pollen): triangular, infoldings (dry pollen): interapertural area sunken, aperture number: 3, aperture type: -, aperture condition: porate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: perforate, rugulate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: viscin threads, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: -, cell number: -, Ubisch bodies: absent
Annotations: Few short viscin threads rise only from one (proximal) pole.
Author(s) of diagnosis: Halbritter, H.
Pictures
1. flower(s)
2. polar view (distal)
3. polar view (proximal)
4. equatorial view
5. aperture
6. exine surface
7. insertion of viscin thread
8. dry pollen grains
Picture legend
- flower(s), photographer: Halbritter, H.
- polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar view (proximal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- insertion of viscin thread - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
Literature
- (2003) Onagraceae. The Northwest European Pollen Flora 67. Rev Palaeobot Palynol 123: 107-161
Copyright and Citation
Cite this publication as:
Halbritter H. 2005. Circaea lutetiana. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Circaea_lutetiana/110031;jsessionid=6D30DA7B59913C91391DD89D0A2C0223; accessed 2025-01-10