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PalDat - Palynological Database

an online publication on recent pollen

Ranunculus ficaria

Taxonomy: Spermatophyta, Ranunculales, Ranunculaceae, Ranunculus

Published: 2005-06-01

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: -,  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

LM  ornamentation LM: psilate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: microechinate, perforate,  suprasculpture SEM: -,  TEM  tectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: -,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: Synonym: Ficaria verna Early second mitotic division. (rarely trinucleate grains in old anthers).

Author(s) of diagnosis: Oberschneider, W.

Pictures

flowers of Ranunculus ficaria

1. flowers of Ranunculus ficaria

upper focus

2. upper focus

optical section

3. optical section

lower focus

4. lower focus

polar view

5. polar view

equatorial view

6. equatorial view

detail of aperture

7. detail of aperture

exine surface

8. exine surface

polar view of dry pollen grain

9. polar view of dry pollen grain

dry pollen grain

10. dry pollen grain

interapertural area of pollen wall

11. interapertural area of pollen wall

aperture

12. aperture

generative cell (left) and vegetative nucleus

13. generative cell (left) and vegetative nucleus

pollen wall and tapetum cells with Ubisch bodies (asterisk)

14. pollen wall and tapetum cells with Ubisch bodies (asterisk)

Picture legend

  1. flowers of Ranunculus ficaria, photographer: Oberschneider, W.
  2. upper focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  3. optical section - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  4. lower focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  5. polar view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  6. equatorial view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  7. detail of aperture - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  8. exine surface - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  9. polar view of dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  10. dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  11. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  12. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  13. generative cell (left) and vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  14. pollen wall and tapetum cells with Ubisch bodies (asterisk) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.

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:

Oberschneider W. 2005. Ranunculus ficaria. In: PalDat - A palynological database. https://www.paldat.org/pub/Ranunculus_ficaria/111101;jsessionid=2D3A2B0ED33BF5936D2E42A375460677; accessed 2024-04-19

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