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PalDat - Palynological Database

an online publication on recent pollen

Poncirus trifoliata

Taxonomy: Angiospermae, Sapindales, Rutaceae, Poncirus

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Poncirus-trifoliata.htm

Published: 2021-02-03

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  size of hydrated pollen (LM): 21-25 µm, 26-30 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  shortest diameter in equatorial or polar view (LM): 21-25 µm,  longest diameter in equatorial or polar view (LM): 21-25 µm,  pollen class: colporate,  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: number varies,  aperture type: colporus,  aperture condition: colporate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: reticulate, free-standing columellae,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: number of apertures is mostly 5, but also 4 or ; apertures are sometimes irregularly arranged

Author(s) of diagnosis: Halbritter, Heidemarie; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

flower(s)

2. flower(s)

flower(s)

3. flower(s)

flower(s)

4. flower(s)

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

aperture

10. aperture

exine surface

11. exine surface

polar area

12. polar area

dry pollen grains

13. dry pollen grains

Picture legend

  1. flower(s), photographer: Buchner, R.
  2. flower(s), photographer: Halbritter, H.
  3. flower(s), photographer: Buchner, R.
  4. flower(s), photographer: Buchner, R.
  5. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  6. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  7. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  8. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. dry pollen grains - dry, 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., Heigl H., Buchner R. 2021. Poncirus trifoliata. In: PalDat - A palynological database. https://www.paldat.org/pub/Poncirus_trifoliata/305251;jsessionid=9F1A612E1617C898FAA6C9710807144D; accessed 2024-03-28

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