Forgot your password?
 
 
PalDat Logo

PalDat - Palynological Database

an online publication on recent pollen

Melissa officinalis

Taxonomy: Angiospermae, Lamiales, Lamiaceae, Melissa

Published: 2016-03-01

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: colpate,  polarity: isopolar,  shape: oblate,  outline in polar view: elliptic,  shape (dry pollen): prolate,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 6,  aperture type: colpus,  aperture condition: colpate, hexacolpate,  aperture peculiarities: aperture membrane ornamented, stephanoaperturate

Ornamentation and Structure

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

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: lipids,  cell number: 3-celled,  Ubisch bodies: absent

Author(s) of diagnosis: Ulrich, Silvia

Pictures

flower(s)

1. flower(s)

sperm cells

2. sperm cells

upper focus

3. upper focus

optical section

4. optical section

lower focus

5. lower focus

equatorial view

6. equatorial view

polar view

7. polar view

equatorial view

8. equatorial view

detail of aperture

9. detail of aperture

exine surface

10. exine surface

exine surface

11. exine surface

polar area

12. polar area

dry pollen grains

13. dry pollen grains

dry pollen grain

14. dry pollen grain

cross section of pollen grain

15. cross section of pollen grain

pollen wall at transition of aperture and interapertural area

16. pollen wall at transition of aperture and interapertural area

pollen wall at transition of aperture and interapertural area

17. pollen wall at transition of aperture and interapertural area

pollen wall; interapertural area

18. pollen wall; interapertural area

pollen wall; interapertural area

19. pollen wall; interapertural area

pollen wall at transition of aperture and interapertural area

20. pollen wall at transition of aperture and interapertural area

pollen wall; interapertural area

21. pollen wall; interapertural area

Picture legend

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

Literature

  • FISCHER MA, ADLER W, OSWALD K (2005) Exkursionsflora für Österreich, Liechtenstein und Südtirol : 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:

Ulrich S. 2016. Melissa officinalis. In: PalDat - A palynological database. https://www.paldat.org/pub/Melissa_officinalis/300526;jsessionid=1220B5530960ED2419E63A681B7A19A5; accessed 2018-11-17

Previous Publications