Petrea volubilis
Taxonomy: Spermatophyta, Lamiales, Verbenaceae, Petrea
Published: 2012-06-05
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): large (51-100 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: colpate, polarity: isopolar, 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: colpate, aperture peculiarities: angulaperturate, brevicolpus
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Annotations: dry pollen often cup-shaped
Author(s) of diagnosis: Halbritter, H.; Buchner, R.
Pictures
1. flower(s)
2. hydrated pollen grains
3. equatorial view
4. polar view (oblique)
5. aperture
6. exine surface
7. dry pollen grains
8. dry pollen grains
9. Ubisch bodies on inner anther wall
Picture legend
- flower(s), photographer: Buchner, R.
- hydrated pollen grains - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar view (oblique) - fresh, rehydration (water) & critical point dried & sputter coated with gold & DMP, photographer: Halbritter, H.
- aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- Ubisch bodies on inner anther wall - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
Literature
Copyright and Citation
Cite this publication as:
Halbritter H., Buchner R. 2012. Petrea volubilis. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Petrea_volubilis/209653; accessed 2025-04-28