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PalDat - Palynological Database

an online publication on recent pollen

Epilobium angustifolium

Taxonomy: Angiospermae, Myrtales, Onagraceae, Epilobium

Published: 2017-01-17

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): -,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: porate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: triangular,  dominant orientation (LM): -,  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

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microgemmate, perforate,  suprasculpture SEM: -,  TEMtectum: -,  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

Pictures

flower(s)

1. flower(s)

hydrated pollen grains

2. hydrated pollen grains

equatorial view

3. equatorial view

aperture

4. aperture

exine surface

5. exine surface

dry pollen grain: viscin threads emerging from exine

6. dry pollen grain: viscin threads emerging from exine

dry pollen grains

7. dry pollen grains

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. dry pollen grain: viscin threads emerging from exine - dry, sputter coated with gold, photographer: Halbritter, H.
  7. 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. 2017. Epilobium angustifolium. In: PalDat - A palynological database. https://www.paldat.org/pub/Epilobium_angustifolium/302941;jsessionid=FB19DE50DFBDFCA3FD12A38101196A77; accessed 2020-09-26

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