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PalDat - Palynological Database

an online publication on recent pollen

Saxifraga scardica

Taxonomy: Angiospermae, Saxifragales, Saxifragaceae, Saxifraga

Published: 2015-10-07

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colpate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  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

LMornamentation LM: striate,  nexine: present,  sexine: present,  SEMornamentation SEM: striate, microgemmate, perforate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: internal tectum

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: lipids,  cell number: 2-celled,  Ubisch bodies: present

Annotations

colpi long: rounded ends;

2 different types of Ubisch-bodies: small spherical and huge elongated;

huge amount of pollenkitt

Author(s) of diagnosis: Prader, Sabine

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

equatorial view,acetolyzed pollen

3. equatorial view, acetolyzed pollen

equatorial view,acetolyzed pollen

4. equatorial view, acetolyzed pollen

equatorial view,acetolyzed pollen

5. equatorial view, acetolyzed pollen

polar view,acetolyzed pollen

6. polar view, acetolyzed pollen

polar view,acetolyzed pollen

7. polar view, acetolyzed pollen

polar view,acetolyzed pollen

8. polar view, acetolyzed pollen

generative cell,polar view

9. generative cell, polar view

starch proove negative,polar view

10. starch proove negative, polar view

hydrated pollen,polar view

11. hydrated pollen, polar view

polar view

12. polar view

equatorial view

13. equatorial view

aperture detail

14. aperture detail

exine surface

15. exine surface

polar area

16. polar area

dry pollen

17. dry pollen

polar view,dry pollen

18. polar view, dry pollen

equatorial view,dry pollen

19. equatorial view, dry pollen

exine surface,dry pollen

20. exine surface, dry pollen

Ubisch bodies on locule wall

21. Ubisch bodies on locule wall

pollen grain in cross section

22. pollen grain in cross section

pollen wall, interapertural area

23. pollen wall, interapertural area

internal tectum

24. internal tectum

pollen wall, transition from aperture to interapertural area

25. pollen wall, transition from aperture to interapertural area

aperture

26. aperture

pollen wall, transition from aperture to interapertural area

27. pollen wall, transition from aperture to interapertural area

lipids

28. lipids

Ubisch bodies on locule wall,pollenkitt attached to pollen wall

29. Ubisch bodies on locule wall, pollenkitt attached to pollen wall

vegetative nucleus and generative cell

30. vegetative nucleus and generative cell

Picture legend

  1. habitus, photographer: Prader, S.
  2. flower(s), photographer: Prader, S.
  3. equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  4. equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  5. equatorial view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  6. polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  7. polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  8. polar view, acetolyzed pollen - dry, acetolyzed & glycerine, unstained, photographer: Prader, S.
  9. generative cell, polar view - dry, unfixed, aceto-carmine, photographer: Prader, S.
  10. starch proove negative, polar view - dry, unfixed, iodine, photographer: Prader, S.
  11. hydrated pollen, polar view - dry, rehydrated (water) & glycerine, unstained, photographer: Prader, S.
  12. polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  13. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  14. aperture detail - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  15. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  16. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  17. dry pollen - dry, sputter coated with gold, photographer: Prader, S.
  18. polar view, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
  19. equatorial view, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
  20. exine surface, dry pollen - dry, sputter coated with gold, photographer: Prader, S.
  21. Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Prader, S.
  22. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
  23. pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
  24. internal tectum - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
  25. pollen wall, transition from aperture to interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
  26. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
  27. pollen wall, transition from aperture to interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Prader, S.
  28. lipids - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.
  29. Ubisch bodies on locule wall, pollenkitt attached to pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Prader, S.
  30. vegetative nucleus and generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Prader, S.

Literature

  • Ferguson IK, Webb DA (1970) Pollen morphology in the genus Saxifraga and its taxonomic significance. Bot J Linn Soc 63: 295–311
  • Hesse M (1981) Pollenkitt and viscin threads: their role in cementing pollen grains. Grana 20: 145-152
  • Abadie M Hideux M (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
  • Kaplan K (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 scardica. In: PalDat - A palynological database. https://www.paldat.org/pub/Saxifraga__scardica/300165;jsessionid=4049245FF1B1703A5C769AC06A689B2C; accessed 2019-11-17