Sedum sexangulare
Taxonomy: Angiospermae, Saxifragales, Crassulaceae, Sedum
Published: 2016-11-28
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): small (10-25 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: colporate, polarity: isopolar, P/E-ratio: oblate, shape: -, outline in polar view: triangular, dominant orientation (LM): -, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: -, sexine: -, SEM ornamentation SEM: rugulate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: -, cell number: 2-celled, Ubisch bodies: -
Author(s) of diagnosis: Loos, Claudia
Pictures
1. flower(s)
2. polar view, upper focus
3. optical section
4. polar view, lower focus
5. pollen grain with generative cell
6. polar view
7. equatorial view
8. aperture
9. exine surface
10. dry pollen grain
11. pollen grain in cross section
12. interapertural area of pollen wall
13. interapertural area of pollen wall
14. aperture
15. vegetative nucleus (asterisk) and generative cell
Picture legend
- flower(s), photographer: Svojtka, M.
- polar view, upper focus - fresh, acetolyzed, unstained, photographer: Loos, C.
- optical section - fresh, acetolyzed, unstained, photographer: Loos, C.
- polar view, lower focus - fresh, acetolyzed, unstained, photographer: Loos, C.
- pollen grain with generative cell - fixed, glutaraldehyde, aceto-carmine, photographer: Loos, C.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- dry pollen grain - dry, sputter coated with gold, photographer: Loos, C.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Loos, C.
- aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- vegetative nucleus (asterisk) and generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
Literature
- (1994) Exkursionsflora von Österreich : 1180
- (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:
Loos C., Svojtka M. 2016. Sedum sexangulare. In: PalDat - A palynological database. https://www.paldat.org/pub/Sedum_sexangulare/302452;jsessionid=C353BCEBD77C0498B40F8C6ED43FF64C; accessed 2025-05-02