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PalDat - Palynological Database

an online publication on recent pollen

Ranunculus gramineus

Taxonomy: Angiospermae, Ranunculales, Ranunculaceae, Ranunculus

Published: 2016-11-28

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: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

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

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

aspect of Ranunculus gramineus

1. aspect of Ranunculus gramineus

flower of Ranunculus gramineus

2. flower of Ranunculus gramineus

polar view

3. polar view

equatorial view

4. equatorial view

oblique view

5. oblique view

aperture

6. aperture

exine surface

7. exine surface

polar area

8. polar area

dry pollen grains

9. dry pollen grains

Ubisch bodies on inner anther wall

10. Ubisch bodies on inner anther wall

Picture legend

  1. aspect of Ranunculus gramineus, photographer: Buchner, R.
  2. flower of Ranunculus gramineus, photographer: Buchner, R.
  3. polar view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  4. equatorial view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  5. oblique view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  6. aperture - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  7. exine surface - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  8. polar area - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  9. dry pollen grains - dry, photographer: Halbritter, H.
  10. Ubisch bodies on inner anther wall - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.

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
  • 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., Buchner R. 2016. Ranunculus gramineus. In: PalDat - A palynological database. https://www.paldat.org/pub/Ranunculus_gramineus/302477;jsessionid=84E6E46159BAACA290A52B9FD3D1705A; accessed 2024-05-03

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