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PalDat - Palynological Database

an online publication on recent pollen

Salix alba

Taxonomy: Angiospermae, Malpighiales, Salicaceae, Salix

Published: 2016-07-13

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colpate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  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

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: reticulate, heterobrochate,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Diethart, Bernadette

Pictures

flower(s)

1. flower(s)

male flowers

2. male flowers

pollen grain with generative cell

3. pollen grain with generative cell

upper focus

4. upper focus

optical section

5. optical section

lower focus

6. lower focus

polar view

7. polar view

equatorial view

8. equatorial view

equatorial view

9. equatorial view

detail of polar area

10. detail of polar area

detail of aperture

11. detail of aperture

detail of aperture

12. detail of aperture

transition of aperture and interapertural area

13. transition of aperture and interapertural area

exine surface

14. exine surface

dry pollen grains

15. dry pollen grains

polar view (dry pollen grain)

16. polar view (dry pollen grain)

dry pollen grain in equatorial view

17. dry pollen grain in equatorial view

pollen grain in cross section

18. pollen grain in cross section

interapertural area of pollen wall

19. interapertural area of pollen wall

interapertural area of pollen wall

20. interapertural area of pollen wall

apertural area of pollen wall

21. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

22. pollen wall at transition of aperture and interapertural area

Picture legend

  1. flower(s), photographer: Diethart, B.
  2. male flowers, photographer: Diethart, B.
  3. pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
  4. upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  5. optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
  6. lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  7. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  8. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  9. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  10. detail of polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  11. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  12. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  13. transition of aperture and interapertural area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  14. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  15. dry pollen grains - dry, sputter coated with gold, photographer: Diethart, B.
  16. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Diethart, B.
  17. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Diethart, B.
  18. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  19. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  20. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Diethart, B.
  21. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  22. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.

Literature

  • Meeuse ADJ (1978) Entomophily in Salix: theoretical considerations. In: Richards A.J. (ed) The Pollination of Flowers by Insects. Linnean Society Symposium Series No 6 : 47-50
  • Rowley JR, Erdtman G (1967) Sporoderm in Populus and Salix. Grana Palynol 7: 517-567
  • Van Der WF, Cappellato R, Meeuse ADJ (1982) Entomophily in Salix. II. Efficacy and flower constancy of insects visiting some willows and sallows. Beitr Biol Pflanzen 56: 105-116
  • 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:

Diethart B. 2016. Salix alba. In: PalDat - A palynological database. https://www.paldat.org/pub/Salix_alba/301225;jsessionid=4113FA4E09C50FEC4F96CA50E0010FC0; accessed 2018-08-21

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