Crepis rubra
Taxonomy: Spermatophyta, Asterales, Asteraceae, Crepis
Published: 2012-07-29
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: lophate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): -, shape (dry pollen): spheroidal, outline in polar view (dry pollen): circular, infoldings (dry pollen): not infolded, aperture number: 3, aperture type: colporus, aperture condition: colporate, aperture peculiarities: aperture membrane psilate
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: microreticulate, lophate, echinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Author(s) of diagnosis: Halbritter, H.
Pictures
1. hydrated pollen grains
2. polar view
3. equatorial view (oblique)
4. aperture
5. exine surface
6. exine surface
7. polar area
8. dry pollen grains
Picture legend
- hydrated pollen grains - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view (oblique) - fresh, rehydration (water) & critical point dried & sputter coated with gold, 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.
- exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar area - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
Literature
Copyright and Citation
Cite this publication as:
Halbritter H. 2012. Crepis rubra. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Crepis_rubra/210519; accessed 2025-04-28