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PalDat - Palynological Database

an online publication on recent pollen

Ornithogalum umbellatum

Taxonomy: Angiospermae, Asparagales, Asparagaceae, Ornithogalum

Published: 2016-10-18

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  pollen class: sulcate,  polarity: heteropolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): boat-shaped,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 1,  aperture type: sulcus,  aperture condition: sulcate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: foveolate, perforate,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Aktuna, Gabriela

Pictures

flower(s)

1. flower(s)

pollen grain after acetolysis

2. pollen grain after acetolysis

polar view (proximal)

3. polar view (proximal)

detail of sulcus

4. detail of sulcus

exine surface

5. exine surface

dry pollen grain in polar view (distal)

6. dry pollen grain in polar view (distal)

dry pollen grain in polar view (proximal)

7. dry pollen grain in polar view (proximal)

pollen grain in cross section

8. pollen grain in cross section

interapertural area of pollen wall

9. interapertural area of pollen wall

pollen wall at transition of aperture and interapertural area

10. pollen wall at transition of aperture and interapertural area

apertural area of pollen wall

11. apertural area of pollen wall

generative cell

12. generative cell

Picture legend

  1. flower(s), photographer: Aktuna, G.
  2. pollen grain after acetolysis - fresh, acetolyzed, unstained, photographer: Aktuna, G.
  3. polar view (proximal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  4. detail of sulcus - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  5. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  6. dry pollen grain in polar view (distal) - dry, sputter coated with gold, photographer: Aktuna, G.
  7. dry pollen grain in polar view (proximal) - dry, sputter coated with gold, photographer: Aktuna, G.
  8. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  9. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  10. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  11. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  12. generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.

Literature

  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180
  • 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:

Aktuna G. 2016. Ornithogalum umbellatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Ornithogalum_umbellatum/301595;jsessionid=173072DB0EAF441DB23236AC5CA07B1B; accessed 2018-11-20

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