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PalDat - Palynological Database

an online publication on recent pollen

Rhododendron arboreum

Taxonomy: Angiospermae, Ericales, Ericaceae, Rhododendron

Published: 2016-11-28

Pollen Description

Shape, Size and Aperture

pollen unit: tetrad,  dispersal unit and peculiarities: tetrad tetrahedral,  size (pollen unit): large (51-100 µm),  pollen class: tetrad,  polarity: heteropolar,  shape: -,  outline in polar view: circular,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: fossulate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: viscin threads

Miscellaneous

pollen coatings: -,  reserves in cytoplasm: -,  cell number: -,  Ubisch bodies: present

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

hydrated pollen

3. hydrated pollen

tetrad

4. tetrad

tetrad

5. tetrad

tetrad

6. tetrad

aperture

7. aperture

aperture

8. aperture

exine surface

9. exine surface

exine surface

10. exine surface

viscin threads

11. viscin threads

viscin thread arising from exine surface

12. viscin thread arising from exine surface

polar area

13. polar area

dry pollen

14. dry pollen

Ubisch bodies on locule wall

15. Ubisch bodies on locule wall

Picture legend

  1. habitus, photographer: Weis, B.
  2. flower(s), photographer: Weis, B.
  3. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. tetrad - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. tetrad - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. tetrad - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. viscin threads - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. viscin thread arising from exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  14. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  15. Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.

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:

Halbritter H., Weis B. 2016. Rhododendron arboreum. In: PalDat - A palynological database. https://www.paldat.org/pub/Rhododendron_arboreum/302337;jsessionid=A63AFD523EFEB37B93ECA12CCEEB77B6; accessed 2018-11-21