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PalDat - Palynological Database

an online publication on recent pollen

Leucojum vernum

Taxonomy: Angiospermae, Asparagales, Amaryllidaceae, Leucojum

Published: 2016-10-18

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: sulcate,  polarity: heteropolar,  shape: oblate,  outline in polar view: elliptic,  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

LMornamentation LM: psilate,  nexine: -,  sexine: -,  SEMornamentation SEM: perforate, no suitable term,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Aktuna, Gabriela

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

polar view (distal)

4. polar view (distal)

polar view (proximal)

5. polar view (proximal)

detail of sulcus

6. detail of sulcus

exine surface

7. exine surface

dry pollen grain in polar view (distal)

8. dry pollen grain in polar view (distal)

dry pollen grain in polar view (proximal)

9. dry pollen grain in polar view (proximal)

pollen grain in cross section

10. pollen grain in cross section

interapertural area of pollen wall

11. interapertural area of pollen wall

apertural area of pollen wall

12. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

13. 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. polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  5. polar view (proximal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  6. detail of sulcus - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  7. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Aktuna, G.
  8. dry pollen grain in polar view (distal) - dry, sputter coated with gold, photographer: Aktuna, G.
  9. dry pollen grain in polar view (proximal) - dry, sputter coated with gold, photographer: Aktuna, G.
  10. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  11. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  12. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Aktuna, G.
  13. 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., Schneider H. 2016. Leucojum vernum. In: PalDat - A palynological database. https://www.paldat.org/pub/Leucojum_vernum/301568;jsessionid=CEE917DBC020E2CB77C5D2E2BFB9D750; accessed 2018-11-20

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