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PalDat - Palynological Database

an online publication on recent pollen

Epilobium angustifolium

Taxonomy: Angiospermae, Myrtales, Onagraceae, Epilobium

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Epilobium%20angustifolium.htm

Published: 2020-12-15

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  size of hydrated pollen (LM): 51-100 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 51-100 µm,  longest diameter in equatorial or polar view (LM): 51-100 µm,  pollen class: porate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: triangular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): interapertural area sunken,  aperture number: 3,  aperture type: porus,  aperture condition: porate, triporate,  aperture peculiarities: annulus

Ornamentation and Structure

LM  ornamentation LM: psilate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: microgemmate, perforate,  suprasculpture SEM: -,  TEM  tectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: viscin threads,  supratectal element: -

Miscellaneous

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

Annotations: polarity isopolar to heteropolar

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

Pictures

flower(s)

1. flower(s)

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

hydrated pollen

4. hydrated pollen

hydrated pollen grains

5. hydrated pollen grains

equatorial view

6. equatorial view

aperture

7. aperture

exine surface

8. exine surface

dry pollen grain: viscin threads emerging from exine

9. dry pollen grain: viscin threads emerging from exine

dry pollen grains

10. dry pollen grains

Picture legend

  1. flower(s), 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. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. dry pollen grain: viscin threads emerging from exine - dry, sputter coated with gold, photographer: Halbritter, H.
  10. 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
  • Barbey W (1885) Epilobium genus a Cl.Ch. Cuisin illustratum. In: Bridel G. (ed) Lausanne : 24 pl
  • Banerjee D (1967) Studies on the pollen grains of Indian Epilobium L. Palynological Bull Lucknow II & III: 24-29
  • Mosquin T (1966) A new taxonomy for Epilobium angustifolium L. (Onagraceae). Brittonia 18: 167-188
  • Hesse M (1980) Zur Stereostruktur der Viscinfäden bei Ericaceen und Onagraceen. Beitr Elektronenmikroskop Direktabb Oberfl 13: 211-216, 2 pl
  • Hesse M (1981) Viscinfäden bei Angiospermen - homologe oder analoge Gebilde? Mikroskopie Wien 38: 85-89, 1 tabl, 1 pl
  • Rowley JR, Dahl AO (1983) Fine structure of viscin threads in Epilobium angustifolium. J Ultrastruct Res 85: 112

Copyright and Citation

Cite this publication as:

Halbritter H., Heigl H. 2020. Epilobium angustifolium. In: PalDat - A palynological database. https://www.paldat.org/pub/Epilobium_angustifolium/304240;jsessionid=0F9236ED6ECD15607E2C9EB83A7270A0; accessed 2024-04-26

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