Saxifraga magellanica
Taxonomy: Angiospermae, Saxifragales, Saxifragaceae, Saxifraga
Published: 2015-07-13
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: colpate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, 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: colpus, aperture condition: colpate, tricolpate, aperture peculiarities: aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: present, sexine: present, SEM ornamentation SEM: microechinate, perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: -, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: lipids, cell number: 2-celled, Ubisch bodies: present
Annotations: huge amount of pollenkitt, two different types of Ubisch bodies: small spherical and huge elongated, endexine not visible probably due to the insufficient fixation
Author(s) of diagnosis: Prader, Sabine
Pictures
1. habitus
2. flower(s)
3. equatorial view, acetolyzed pollen
4. equatorial view, acetolyzed pollen
5. equatorial view, acetolyzed pollen
6. polar view, acetolyzed pollen
7. polar view, acetolyzed pollen
8. polar view, acetolyzed pollen
9. generative cell, pollenkitt, polar view
10. starch proov negative, polar view
11. hydrated pollen, polar view
12. polar view
13. equatorial view
14. aperture detail
15. exine surface
16. polar area
17. dry pollen
18. polar view, dry pollen
19. equatorial view, dry pollen
20. exine surface, dry pollen
21. Ubisch bodies on locule wall
22. pollen grain in cross section
23. pollen wall, transition from aperture to interapertural area
24. pollen wall, interapertural area
25. pollen wall, transition from aperture to interapertural area, pollenkitt attached to pollen wall
26. aperture
27. Ubisch bodies on locule wall, pollenkitt attached to pollen wall
28. pollenkitt attached to pollen wall
Picture legend
- habitus, photographer: Prader, S.
- flower(s), photographer: Prader, S.
- equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
- generative cell, pollenkitt, polar view - dry, unfixed, aceto-carmine, photographer: Prader, S.
- starch proov negative, polar view - dry, unfixed, iodine, photographer: Prader, S.
- hydrated pollen, polar view - dry, rehydrated (water) & glycerine, unstained, photographer: Prader, S.
- polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- aperture detail - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- dry pollen - dry, sputter coated with gold, photographer: Prader, S.
- polar view, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
- equatorial view, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
- exine surface, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
- Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
- pollen wall, transition from aperture to interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Prader, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
- pollen wall, transition from aperture to interapertural area, pollenkitt attached to pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
- aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
- Ubisch bodies on locule wall, pollenkitt attached to pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
- pollenkitt attached to pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
Literature
- (1981) Pollenkitt and viscin threads: their role in cementing pollen grains. Grana 20: 145-152
- (1979) L’anthère de Saxifraga cymbalaria L. ssp. huetiana (Boiss.) Engl. et Irmsch. en microscopie électronique (M.E.B. et M.E.T.). 1. Generalites. Ontogenese des orbicules. Ann Sci Nat Bot 13: 237-281
- (1970) Pollen morphology in the genus Saxifraga and its taxonomic significance. Bot J Linn Soc 63: 295–311
- (1981) Embryologische, pollen- und samenmorphologische Untersuchungen zur Systematik von Saxifraga (Saxifragaceae). Bibl Bot 134: 1–56
Copyright and Citation
Cite this publication as:
Prader S. 2015. Saxifraga magellanica. In: PalDat - A palynological database. https://www.paldat.org/en/pub/Saxifraga_magellanica/300118; accessed 2025-05-04