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an online publication on recent pollen

Lopezia racemosa

Taxonomy: Angiospermae, Myrtales, Onagraceae, Lopezia

Published: 2023-12-30

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  size of hydrated pollen (LM): 51-100 µm,  shortest polar axis in equatorial view (LM): 41-50 µm,  longest polar axis in equatorial view (LM): 51-100 µm,  shortest diameter in equatorial or polar view (LM): 41-50 µm,  longest diameter in equatorial or polar view (LM): 51-100 µm,  pollen class: porate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: triangular,  dominant orientation (LM): polar,  P/E-ratio (dry pollen): oblate,  shape (dry pollen): -,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): interapertural area sunken,  aperture number: 3,  aperture type: porus,  aperture condition: porate, triporate,  aperture peculiarities: angulaperturate

Ornamentation and Structure

LMornamentation LM: gemmate,  nexine: -,  sexine: -,  SEMornamentation SEM: microgemmate, perforate,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: viscin threads,  supratectal element: -

Miscellaneous

pollen coatings: -,  reserves in cytoplasm: -,  cell number: -,  Ubisch bodies: present

Annotations: viscin threads rising from proximal face only

Author(s) of diagnosis: Halbritter, Heidemarie; Koelzer, Karen

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

hydrated pollen,polar view

3. hydrated pollen, polar view

hydrated pollen,polar view

4. hydrated pollen, polar view

hydrated pollen,viscin threads

5. hydrated pollen, viscin threads

hydrated pollen,equatorial view

6. hydrated pollen, equatorial view

hydrated pollen,equatorial view

7. hydrated pollen, equatorial view

hydrated pollen,polar view

8. hydrated pollen, polar view

hydrated pollen,equatorial view,aperture

9. hydrated pollen, equatorial view, aperture

hydrated pollen,equatorial view

10. hydrated pollen, equatorial view

hydrated pollen

11. hydrated pollen

proximal polar view

12. proximal polar view

equatorial view

13. equatorial view

equatorial view

14. equatorial view

aperture

15. aperture

exine surface

16. exine surface

exine surface,viscin threads

17. exine surface, viscin threads

viscin threads

18. viscin threads

polar area,proximal

19. polar area, proximal

dry pollen

20. dry pollen

Ubisch bodies on locule wall

21. Ubisch bodies on locule wall

Picture legend

  1. habitus, photographer: Halbritter, H.
  2. flower(s), photographer: Halbritter, H.
  3. hydrated pollen, polar view - fresh, glycerine gelatine, basic fuchsin, photographer: Koelzer, K.
  4. hydrated pollen, polar view - fresh, glycerine gelatine, basic fuchsin, photographer: Koelzer, K.
  5. hydrated pollen, viscin threads - fresh, glycerine gelatine, basic fuchsin, photographer: Koelzer, K.
  6. hydrated pollen, equatorial view - fresh, glycerine gelatine, basic fuchsin, photographer: Koelzer, K.
  7. hydrated pollen, equatorial view - fresh, glycerine gelatine, basic fuchsin, photographer: Koelzer, K.
  8. hydrated pollen, polar view - fresh, glycerine gelatine, unstained, photographer: Koelzer, K.
  9. hydrated pollen, equatorial view, aperture - fresh, glycerine gelatine, unstained, photographer: Koelzer, K.
  10. hydrated pollen, equatorial view - fresh, glycerine gelatine, unstained, photographer: Koelzer, K.
  11. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. proximal polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  14. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  15. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  16. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  17. exine surface, viscin threads - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  18. viscin threads - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  19. polar area, proximal - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  20. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  21. Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.

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

Copyright and Citation

Cite this publication as:

Halbritter H., Koelzer K. 2023. Lopezia racemosa. In: PalDat - A palynological database. https://www.paldat.org/pub/Lopezia_racemosa/306651;jsessionid=203F303DC685A9FDB29A31A1DF630594; accessed 2024-05-05

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