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an online publication on recent pollen

Aechmea azurea

Taxonomy: Angiospermae, Poales, Bromeliaceae, Aechmea

Published: 2016-05-19

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: -,  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): interapertural area sunken,  aperture number: >6,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: pantoaperturate

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: reticulate,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: pores differ in size and number (mostly 8)

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen grains

1. hydrated pollen grains

hydrated pollen grain

2. hydrated pollen grain

aperture

3. aperture

exine surface of dry pollen grain

4. exine surface of dry pollen grain

exine surface

5. exine surface

dry pollen grains

6. dry pollen grains

Picture legend

  1. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. exine surface of dry pollen grain - 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 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

Copyright and Citation

Cite this publication as:

Halbritter H. 2016. Aechmea azurea. In: PalDat - A palynological database. https://www.paldat.org/pub/Aechmea_azurea/301072; accessed 2024-11-10

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