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an online publication on recent pollen

Ranunculus glacialis

Taxonomy: Spermatophyta, Ranunculales, Ranunculaceae, Ranunculus

Published: 2011-10-06

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: -,  aperture condition: colpate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: pollen size about 25 µm

Author(s) of diagnosis: Halbritter, H.

Pictures

flower of Ranunculus glacialis

1. flower of Ranunculus glacialis

polar view (proximal)

2. polar view (proximal)

optical section

3. optical section

polar view (distal)

4. polar view (distal)

generative cell (asterisk) and vegetative nucleus

5. generative cell (asterisk) and vegetative nucleus

polar view

6. polar view

polar view

7. polar view

equatorial view

8. equatorial view

equatorial view

9. equatorial view

aperture

10. aperture

detail of colpus membrane

11. detail of colpus membrane

exine surface

12. exine surface

exine surface

13. exine surface

polar area

14. polar area

dry pollen grains

15. dry pollen grains

polar view (dry pollen grain)

16. polar view (dry pollen grain)

dry pollen grain in equatorial view

17. dry pollen grain in equatorial view

Ubisch bodies on inner anther wall

18. Ubisch bodies on inner anther wall

interapertural area of pollen wall, intine (I), endexine (E)

19. interapertural area of pollen wall, intine (I), endexine (E)

apertural area of pollen wall, intine (I), endexine (E)

20. apertural area of pollen wall, intine (I), endexine (E)

pollen wall (bottom) and tapetum cells with Ubisch bodies (U)

21. pollen wall (bottom) and tapetum cells with Ubisch bodies (U)

Picture legend

  1. flower of Ranunculus glacialis, photographer: Auer, A.
  2. polar view (proximal) - fresh, acetolyzed, unstained, photographer: Auer, A.
  3. optical section - fresh, acetolyzed, unstained, photographer: Auer, A.
  4. polar view (distal) - fresh, acetolyzed, unstained, photographer: Auer, A.
  5. generative cell (asterisk) and vegetative nucleus - fixed, formalin-acetic-alcohol, aceto-carmine, photographer: Auer, A.
  6. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
  7. polar view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. equatorial view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
  10. aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. detail of colpus membrane - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
  12. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
  14. polar area - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  15. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  16. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Auer, A.
  17. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Auer, A.
  18. Ubisch bodies on inner anther wall - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  19. interapertural area of pollen wall, intine (I), endexine (E) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Auer, A.
  20. apertural area of pollen wall, intine (I), endexine (E) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Auer, A.
  21. pollen wall (bottom) and tapetum cells with Ubisch bodies (U) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Auer, A.

Literature

  • Bergström G, Dobson HEM, Groth I (1995) Spatial fragrance patterns within the flowers of Ranunculus acris (Ranunculaceae). Pl Syst Evol 195: 221-242
  • Fernández I (1985) Morfologia polinica de Ranunculus arvensis L. Anales Asoc Palin Lengua Esp 2: 19-23
  • Oberschneider W (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
  • Roland F (1971) Characterization and extraction of the polysaccharides of the intine of the generative cell wall in the pollen grains of some Ranunculaceae. Grana 11: 101-106
  • Turala-Szybowska K (1994) Syncytes in the secretory anthers' tapetum of Ranunculus peltatus (Ranunculaceae). Polish Bot Stud 8: 23-30

Copyright and Citation

Cite this publication as:

Halbritter H., Auer A. 2011. Ranunculus glacialis. In: PalDat - A palynological database. https://www.paldat.org/pub/Ranunculus_glacialis/203332;jsessionid=4E05448A1DE5C709D98DA8A39BBF0C80; accessed 2024-04-19

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