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an online publication on recent pollen

Galeopsis tetrahit

Taxonomy: Angiospermae, Lamiales, Lamiaceae, Galeopsis

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Galeopsis-tetrahit.htm

Published: 2020-12-10

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): 36-40 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 36-40 µm,  longest diameter in equatorial or polar view (LM): 36-40 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: aperture membrane ornamented, margo

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate, reticulate, bireticulate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Halbritter; Ulrich, Silvia; Auer, Waltraud

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

pollen grain with generative cell

3. pollen grain with generative cell

upper focus

4. upper focus

optical section

5. optical section

lower focus

6. lower focus

polar view

7. polar view

equatorial view

8. equatorial view

hydrated pollen

9. hydrated pollen

hydrated pollen

10. hydrated pollen

hydrated pollen

11. hydrated pollen

polar view

12. polar view

slightly oblique polar view

13. slightly oblique polar view

equatorial view

14. equatorial view

equatorial view

15. equatorial view

aperture

16. aperture

detail of aperture

17. detail of aperture

detail of aperture

18. detail of aperture

exine surface

19. exine surface

polar area

20. polar area

dry pollen grains

21. dry pollen grains

pollen grain in cross section

22. pollen grain in cross section

apertural area of pollen wall

23. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

24. pollen wall at transition of aperture and interapertural area

interapertural area of pollen wall

25. interapertural area of pollen wall

interapertural area of pollen wall

26. interapertural area of pollen wall

generative cell and vegetative nucleus

27. generative cell and vegetative nucleus

pollenkitt

28. pollenkitt

Picture legend

  1. habitus, photographer: Ulrich, S.
  2. flower(s), photographer: Ulrich, S.
  3. pollen grain with generative cell - fresh, rehydrated (water), aceto-carmine, photographer: Ulrich, S.
  4. upper focus - fresh, acetolyzed, unstained, photographer: Ulrich, S.
  5. optical section - fresh, acetolyzed, unstained, photographer: Ulrich, S.
  6. lower focus - fresh, acetolyzed, unstained, photographer: Ulrich, S.
  7. polar view - fresh, rehydrated (water), unstained, photographer: Ulrich, S.
  8. equatorial view - fresh, rehydrated (water), unstained, photographer: Ulrich, S.
  9. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  10. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  11. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  12. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  13. slightly oblique polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  14. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  15. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  16. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  17. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  18. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  19. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  20. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  21. dry pollen grains - dry, sputter coated with gold, photographer: Ulrich, S.
  22. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  23. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  24. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  25. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  26. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  27. generative cell and vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  28. pollenkitt - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.

Literature

  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
  • FISCHER MA, ADLER W, OSWALD K (2005) Exkursionsflora für Österreich, Liechtenstein und Südtirol : 1180

Copyright and Citation

Cite this publication as:

Halbritter H., Ulrich S., Auer W. 2020. Galeopsis tetrahit. In: PalDat - A palynological database. https://www.paldat.org/pub/Galeopsis_tetrahit/304423;jsessionid=8ACEEC21A342E5DF83065B44342F0A01; accessed 2024-03-29

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