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PalDat - Palynological Database

an online publication on recent pollen

Forsythia intermedia

Taxonomy: Angiospermae, Lamiales, Oleaceae, Forsythia

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Forsythia-intermedia.htm

Published: 2021-05-11

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  size of hydrated pollen (LM): 21-25 µm,  shortest polar axis in equatorial view (LM): 16-20 µm,  longest polar axis in equatorial view (LM): 21-25 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: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Annotations: pictures of hydrated pollen are from Forsythia x intermedia

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

Pictures

flowers of Forsythia x intermedia

1. flowers of Forsythia x intermedia

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

hydrated pollen

4. hydrated pollen

polar view

5. polar view

equatorial view

6. equatorial view

aperture

7. aperture

exine surface

8. exine surface

polar area

9. polar area

dry pollen grains

10. dry pollen grains

Picture legend

  1. flowers of Forsythia x intermedia, photographer: Halbritter, H.
  2. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  3. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  4. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  5. polar view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  6. equatorial view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  7. aperture - fresh, DMP & critical point dried, photographer: Halbritter, H.
  8. exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
  9. polar area - fresh, DMP & critical point dried, photographer: Halbritter, H.
  10. dry pollen grains - dry, 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. 2021. Forsythia intermedia. In: PalDat - A palynological database. https://www.paldat.org/pub/Forsythia_intermedia/306041;jsessionid=8F77EA1ED16951AD994F56D483B8FC4B; accessed 2024-03-29

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