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PalDat - Palynological Database

an online publication on recent pollen

Veronica anagallis-aquatica

Taxonomy: Angiospermae, Lamiales, Plantaginaceae, Veronica

Links: http://flora.nhm-wien.ac.at/seiten-arten/veronica-anagallis-aquatica.htm

Published: 2020-12-14

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): 26-30 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 26-30 µm,  longest diameter in equatorial or polar view (LM): 26-30 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): 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: scabrate, verrucate, gemmate,  nexine: present,  sexine: present,  SEMornamentation SEM: microreticulate,  suprasculpture SEM: -,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: bilayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

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

Pictures

habitus

1. habitus

inflorescence(s)

2. inflorescence(s)

inflorescence(s)

3. inflorescence(s)

2-celled pollen

4. 2-celled pollen

acetolyzed pollen, upper focus

5. acetolyzed pollen, upper focus

acetolyzed pollen, lower focus

6. acetolyzed pollen, lower focus

acetolyzed pollen, optical section

7. acetolyzed pollen, optical section

hydrated pollen, polar view

8. hydrated pollen, polar view

hydrated pollen

9. hydrated pollen

hydrated pollen

10. hydrated pollen

hydrated pollen

11. hydrated pollen

hydrated pollen, polar view

12. hydrated pollen, polar view

hydrated pollen, equatorial view

13. hydrated pollen, equatorial view

polar area

14. polar area

detail of aperture

15. detail of aperture

detail of aperture

16. detail of aperture

exine surface

17. exine surface

dry pollen

18. dry pollen

cross section of pollen grain

19. cross section of pollen grain

cross section of pollen wall

20. cross section of pollen wall

pollen wall at transition of aperture and interapertural area

21. pollen wall at transition of aperture and interapertural area

pollen wall, interapertural area

22. pollen wall, interapertural area

pollen wall, interapertural area

23. pollen wall, interapertural area

pollen wall, interapertural area

24. pollen wall, interapertural area

pollen wall, aperture area

25. pollen wall, aperture area

cytoplasm with vegetative nucleus, generative cell (below) and organells

26. cytoplasm with vegetative nucleus, generative cell (below) and organells

cytoplasm with generative cell  and organells

27. cytoplasm with generative cell and organells

Picture legend

  1. habitus, photographer: Ulrich, S.
  2. inflorescence(s), photographer: Ulrich, S.
  3. inflorescence(s), photographer: Ulrich, S.
  4. 2-celled pollen - dry, unfixed, aceto-carmine, photographer: Ulrich, S.
  5. acetolyzed pollen, upper focus - dry, acetolyzed, unstained, photographer: Ulrich, S.
  6. acetolyzed pollen, lower focus - dry, acetolyzed, unstained, photographer: Ulrich, S.
  7. acetolyzed pollen, optical section - dry, acetolyzed, unstained, photographer: Ulrich, S.
  8. hydrated pollen, polar view - dry, 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. hydrated pollen, polar view - fresh, rehydration (water) & DMP & critical point dried, photographer: Ulrich, S.
  13. hydrated pollen, equatorial view - fresh, unfixed, photographer: Ulrich, S.
  14. polar area - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  15. detail of aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  16. detail of aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  17. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
  18. dry pollen - dry, sputter coated with gold, photographer: Ulrich, S.
  19. cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  20. cross section of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  21. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  22. pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Ulrich, S.
  23. pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  24. pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
  25. pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  26. cytoplasm with vegetative nucleus, generative cell (below) and organells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
  27. cytoplasm with generative cell and organells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.

Literature

  • Fischer MA (1975) The Veronica hederifolia group: taxonomy, ecology, and phylogeny. European Floristic and Taxonomic Studies : 48-60
  • Halbritter, H (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:

Ulrich S., Auer W. 2020. Veronica anagallis-aquatica. In: PalDat - A palynological database. https://www.paldat.org/pub/Veronica_anagallis-aquatica/304505;jsessionid=390FDDC3A70DFE19D60C87EF0D782297; accessed 2021-09-23

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