PalDat Logo

PalDat - Palynological Database

an online publication on recent pollen

Stellaria holostea

Taxonomy: Angiospermae, Caryophyllales, Caryophyllaceae, Stellaria

Published: 2021-08-02

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): 36-40 µm,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): 36-40 µm,  longest diameter in equatorial or polar view (LM): 36-40 µm,  pollen class: porate,  polarity: isopolar,  P/E-ratio: isodiametric,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  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: aperture membrane ornamented, pantoaperturate

Ornamentation and Structure

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


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

Annotations: always 12 apertures

Author(s) of diagnosis: Halbritter, Heidemarie; Auer, Waltraud



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

detail of aperture

6. detail of aperture

exine surface

7. exine surface

dry pollen grains

8. dry pollen grains

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. hydrated Pollen - fresh, glycerine, unstained, photographer: Auer, W.
  3. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  4. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  5. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydrated (water) & sputter coated with gold & critical point dried, photographer: Halbritter, H.
  8. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.


  • 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., Auer W. 2021. Stellaria holostea. In: PalDat - A palynological database.;jsessionid=8B1C08B1232754AA75C4C4A2290F78E4; accessed 2021-09-23

Previous Publications