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an online publication on recent pollen

Delphinium elatum

Taxonomy: Angiospermae, Ranunculales, Ranunculaceae, Delphinium

Published: 2021-03-31

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,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 21-25 µm,  longest diameter in equatorial or polar view (LM): 21-25 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  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: scabrate, granulate,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-discontinuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: pictures of hydrated pollen are from Delphinium elatum ssp. elatum

Author(s) of diagnosis: Oberschneider, Wolfgang; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

upper focus

2. upper focus

optical section

3. optical section

lower focus

4. lower focus

hydrated pollen

5. hydrated pollen

hydrated pollen

6. hydrated pollen

hydrated pollen

7. hydrated pollen

polar view

8. polar view

equatorial view

9. equatorial view

detail of aperture

10. detail of aperture

exine surface

11. exine surface

polar view of dry pollen grain

12. polar view of dry pollen grain

dry pollen grain in equatorial view

13. dry pollen grain in equatorial view

interapertural area of pollen wall

14. interapertural area of pollen wall

aperture

15. aperture

generative cell (right) and vegetative nucleus (left)

16. generative cell (right) and vegetative nucleus (left)

pollen wall and tapetum cells with Ubisch bodies (asterisks)

17. pollen wall and tapetum cells with Ubisch bodies (asterisks)

Picture legend

  1. flower(s), photographer: Oberschneider, W.
  2. upper focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  3. optical section - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  4. lower focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  5. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  6. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  7. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  8. polar view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  9. equatorial view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  10. detail of aperture - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  11. exine surface - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  12. polar view of dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  13. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Oberschneider, W.
  14. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  15. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  16. generative cell (right) and vegetative nucleus (left) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  17. pollen wall and tapetum cells with Ubisch bodies (asterisks) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.

Literature

  • Oberschneider W (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
  • 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:

Oberschneider W., Heigl H., Auer W. 2021. Delphinium elatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Delphinium_elatum/305959;jsessionid=4D0EEAADF95DC4BA57D63BAC79588912; accessed 2021-12-04

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