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PalDat - Palynological Database

an online publication on recent pollen

Leucojum vernum

Taxonomy: Angiospermae, Asparagales, Amaryllidaceae, Leucojum

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Leucojum-vernum.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): 31-35 µm,  shortest polar axis in equatorial view (LM): 26-30 µm,  longest polar axis in equatorial view (LM): 31-35 µm,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: sulcate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: elliptic,  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: aperture membrane ornamented

Ornamentation and Structure

LM  ornamentation LM: psilate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: perforate, no suitable term,  suprasculpture SEM: -,  TEM  tectum: 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 grain after acetolysis

2. pollen grain 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 (distal)

7. polar view (distal)

polar view (proximal)

8. polar view (proximal)

detail of sulcus

9. detail of sulcus

exine surface

10. exine surface

dry pollen grain in polar view (distal)

11. dry pollen grain in polar view (distal)

dry pollen grain in polar view (proximal)

12. dry pollen grain in polar view (proximal)

pollen grain in cross section

13. pollen grain in cross section

interapertural area of pollen wall

14. interapertural area of pollen wall

apertural area of pollen wall

15. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

16. pollen wall at transition of aperture and interapertural area

Picture legend

  1. flower(s), photographer: Schneider, H.
  2. pollen grain 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 (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  8. polar view (proximal) - 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. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  11. dry pollen grain in polar view (distal) - dry, sputter coated with gold, photographer: Aktuna, G.
  12. dry pollen grain in polar view (proximal) - dry, sputter coated with gold, photographer: Aktuna, G.
  13. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  14. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  15. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  16. pollen wall at transition of aperture and interapertural area - 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., Heigl H., Schneider H. 2020. Leucojum vernum. In: PalDat - A palynological database. https://www.paldat.org/pub/Leucojum_vernum/304772;jsessionid=E691145560C078C4CB1C0D477CD61D08; accessed 2024-04-25

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