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PalDat - Palynological Database

an online publication on recent pollen

Leucojum aestivum

Taxonomy: Angiospermae, Asparagales, Amaryllidaceae, Leucojum

Links: http://flora.nhm-wien.ac.at/seiten-arten/leucojum-aestivum.htm

Published: 2020-12-29

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): 21-25 µm, 26-30 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): 21-25 µm,  shortest diameter in equatorial or polar view (LM): 21-25 µm,  longest diameter in equatorial or polar view (LM): 26-30 µm,  pollen class: sulcate,  polarity: heteropolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): equatorial,  P/E-ratio (dry pollen): -,  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: psilate,  nexine: -,  sexine: -,  SEMornamentation SEM: perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Author(s) of diagnosis: Aktuna, Gabriela; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

pollen grains after acetolysis

2. pollen grains after acetolysis

pollen grain with generative cell (asterisk) and vegetative nucleus

3. pollen grain with generative cell (asterisk) and vegetative nucleus

hydrated pollen

4. hydrated pollen

hydrated pollen

5. hydrated pollen

hydrated pollen

6. hydrated pollen

polar view (proximal)

7. polar view (proximal)

equatorial view

8. equatorial view

detail of sulcus

9. detail of sulcus

dry pollen grain in polar view (distal)

10. dry pollen grain in polar view (distal)

dry pollen grain in polar view (proximal)

11. dry pollen grain in polar view (proximal)

interapertural area fo pollen wall

12. interapertural area fo pollen wall

apertural area of pollen wall

13. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

14. pollen wall at transition of aperture and interapertural area

Picture legend

  1. flower(s), photographer: Aktuna, G.
  2. pollen grains after acetolysis - fresh, acetolyzed, unstained, photographer: Aktuna, G.
  3. pollen grain with generative cell (asterisk) and vegetative nucleus - fixed, formalin-acetic-alcohol, aceto-carmine, photographer: Aktuna, G.
  4. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  5. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  6. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  7. polar view (proximal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  8. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  9. detail of sulcus - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  10. dry pollen grain in polar view (distal) - dry, sputter coated with gold, photographer: Aktuna, G.
  11. dry pollen grain in polar view (proximal) - dry, sputter coated with gold, photographer: Aktuna, G.
  12. interapertural area fo pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Aktuna, G.
  13. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Aktuna, G.
  14. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, 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., Heigl H. 2020. Leucojum aestivum. In: PalDat - A palynological database. https://www.paldat.org/pub/Leucojum_aestivum/304773;jsessionid=9BFA4DAF19F5D029E12093BEE9381AE8; accessed 2021-12-09

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