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PalDat - Palynological Database

an online publication on recent pollen

Aechmea costantinii

Taxonomy: Angiospermae, Poales, Bromeliaceae, Aechmea

Published: 2024-02-27

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): -,  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: -,  P/E-ratio: isodiametric,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: number varies,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: pantoaperturate

Ornamentation and Structure

LM  ornamentation LM: -,  nexine: -,  sexine: -,  SEM  ornamentation SEM: reticulate,  suprasculpture SEM: -,  TEM  tectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: aperture number mostly 6, 4 - 7; size medium to large

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen

1. hydrated pollen

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

aperture

4. aperture

aperture

5. aperture

exine surface

6. exine surface

dry pollen

7. dry pollen

Picture legend

  1. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. dry pollen - 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. 2024. Aechmea costantinii. In: PalDat - A palynological database. https://www.paldat.org/pub/Aechmea_costantinii/306685;jsessionid=C4EE3EF0BC169CBAC50D1086396EEFBA; accessed 2024-11-01