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PalDat - Palynological Database

an online publication on recent pollen

Gentiana acaulis

Taxonomy: Angiospermae, Gentianales, Gentianaceae, Gentiana

Published: 2016-12-04

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: colporate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  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: -,  nexine: -,  sexine: -,  SEMornamentation SEM: striato-reticulate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: -,  wall peculiarities: -

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: -,  cell number: 3-celled,  Ubisch bodies: -

Author(s) of diagnosis: Halbritter, Heidemarie; Weber, Martina

Pictures

flowers of Gentiana acaulis

1. flowers of Gentiana acaulis

polar view

2. polar view

equatorial view

3. equatorial view

aperture

4. aperture

exine surface

5. exine surface

polar area

6. polar area

dry pollen grains

7. dry pollen grains

hydrated pollen grain

8. hydrated pollen grain

pollen wall

9. pollen wall

pollen wall

10. pollen wall

Picture legend

  1. flowers of Gentiana acaulis, photographer: Halbritter, H.
  2. polar view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  3. equatorial view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  4. aperture - fresh, DMP & critical point dried, photographer: Halbritter, H.
  5. exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
  6. polar area - fresh, DMP & critical point dried, photographer: Halbritter, H.
  7. dry pollen grains - dry, photographer: Halbritter, H.
  8. hydrated pollen grain, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  9. pollen wall, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  10. pollen wall, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.

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., Weber M. 2016. Gentiana acaulis. In: PalDat - A palynological database. https://www.paldat.org/pub/Gentiana_acaulis/302644;jsessionid=BBD144E2E86FDFA0D8DEAC5B007B5326; accessed 2018-11-15

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