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an online publication on recent pollen

Tsuga canadensis

Taxonomy: Gymnospermae, Pinales, Pinaceae, Tsuga

Published: 2017-01-17

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 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: saccate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): cup-shaped,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): -,  aperture number: 1,  aperture type: leptoma,  aperture condition: -,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Annotations: monosaccate

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

polar view (distal)

1. polar view (distal)

equatorial view

2. equatorial view

exine surface (equatorial area)

3. exine surface (equatorial area)

exine surface (distal pole)

4. exine surface (distal pole)

exine surface (saccus)

5. exine surface (saccus)

dry pollen grains

6. dry pollen grains

Picture legend

  1. polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. exine surface (equatorial area) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. exine surface (distal pole) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. exine surface (saccus) - 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. 2017. Tsuga canadensis. In: PalDat - A palynological database. https://www.paldat.org/pub/Tsuga_canadensis/302962;jsessionid=DF824985A405CA49C0AC61FE7BEC5C7E; accessed 2020-08-14

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