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PalDat - Palynological Database

an online publication on recent pollen

Polemonium caeruleum

Taxonomy: Angiospermae, Ericales, Polemoniaceae, Polemonium

Published: 2017-01-17

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: porate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): spheroidal,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): not infolded,  aperture number: >6,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: pantoaperturate, aperture membrane ornamented

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: striato-reticulate, microechinate,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Svojtka, Matthias

Pictures

flower(s)

1. flower(s)

hydrated pollen grain

2. hydrated pollen grain

exine surface

3. exine surface

dry pollen grain

4. dry pollen grain

exine surface of dry pollen grain

5. exine surface of dry pollen grain

cross section of pollen grain

6. cross section of pollen grain

pollen wall

7. pollen wall

detail of pollen wall

8. detail of pollen wall

apertures

9. apertures

generative cell

10. generative cell

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Svojtka, M.
  3. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Svojtka, M.
  4. dry pollen grain - dry, sputter coated with gold, photographer: Svojtka, M.
  5. exine surface of dry pollen grain - dry, sputter coated with gold, photographer: Svojtka, M.
  6. cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Svojtka, M.
  7. pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Svojtka, M.
  8. detail of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Svojtka, M.
  9. apertures - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Svojtka, M.
  10. generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Svojtka, M.

Literature

  • 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:

Svojtka M., Halbritter H. 2017. Polemonium caeruleum. In: PalDat - A palynological database. https://www.paldat.org/pub/Polemonium_caeruleum/302942;jsessionid=FBCE07F798D27C3709707E1B922DD3F8; accessed 2018-11-14

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