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PalDat - Palynological Database

an online publication on recent pollen

Rhododendron ludwigianum

Taxonomy: Angiospermae, Ericales, Ericaceae, Rhododendron

Published: 2018-01-16

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: oblate,  outline in polar view: circular,  shape (dry pollen): -,  outline in polar view (dry pollen): -,  infoldings (dry pollen): -,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

habitus

1. habitus

inflorescence(s)

2. inflorescence(s)

hydrated pollen

3. hydrated pollen

hydrated pollen

4. hydrated pollen

tetrad,apical view

5. tetrad, apical view

tetrad,lateral view

6. tetrad, lateral view

tetrad,basal view

7. tetrad, basal view

apertures

8. apertures

exine surface

9. exine surface

exine surface,insertion of viscin thread

10. exine surface, insertion of viscin thread

tenuitas,viscin threads

11. tenuitas, viscin threads

polar area

12. polar area

Ubisch bodies on locule wall

13. Ubisch bodies on locule wall

Picture legend

  1. habitus, photographer: Weis, B.
  2. inflorescence(s), photographer: Weis, B.
  3. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. tetrad, apical view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. tetrad, lateral view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. tetrad, basal view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. apertures - 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, insertion of viscin thread - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. tenuitas, viscin threads - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. 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. 2018. Rhododendron ludwigianum. In: PalDat - A palynological database. https://www.paldat.org/pub/Rhododendron_ludwigianum/303151;jsessionid=E06147BAE3A7882AAED003274887A367; accessed 2018-11-15