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PalDat - Palynological Database

an online publication on recent pollen

Stellaria media

Taxonomy: Angiospermae, Caryophyllales, Caryophyllaceae, Stellaria

Links: http://flora.nhm-wien.ac.at/seiten-arten/stellaria-media.htm

Published: 2020-10-29

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): 31-35 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 31-35 µm,  longest diameter in equatorial or polar view (LM): 31-35 µm,  pollen class: porate,  polarity: isopolar,  P/E-ratio: isodiametric,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): polar,  P/E-ratio (dry pollen): -,  shape (dry pollen): polygonal,  outline in polar view (dry pollen): polygonal,  infoldings (dry pollen): aperture(s) sunken,  aperture number: >6,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: operculum, pantoaperturate

Ornamentation and Structure

LMornamentation LM: scabrate, verrucate, gemmate,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, perforate,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: always 12 apertures

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 grain

5. hydrated pollen grain

apertures

6. apertures

dry pollen grains

7. dry pollen grains

aperture of dry pollen grain

8. aperture of dry pollen grain

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 grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. apertures - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  8. aperture of dry pollen grain - 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. 2020. Stellaria media. In: PalDat - A palynological database. https://www.paldat.org/pub/Stellaria_media/303809;jsessionid=ADC808117479D1FAE64567F336408162; accessed 2021-06-24

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