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PalDat - Palynological Database

an online publication on recent pollen

Ephedra distachya

Taxonomy: Gymnospermae, Gnetales, Ephedraceae, Ephedra

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Ephedra-distachya.htm

Published: 2020-07-28

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): 21-25 µm,  longest polar axis in equatorial view (LM): 31-35 µm,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: plicate,  polarity: isopolar,  P/E-ratio: prolate,  shape: spindle-shaped,  outline in polar view: circular,  dominant orientation (LM): equatorial,  P/E-ratio (dry pollen): oblate,  shape (dry pollen): -,  outline in polar view (dry pollen): -,  infoldings (dry pollen): -,  aperture number: none,  aperture type: -,  aperture condition: inaperturate,  aperture peculiarities: -

Ornamentation and Structure

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

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie; Heigl, Helmut

Pictures

hydrated Pollen

1. hydrated Pollen

hydrated Pollen

2. hydrated Pollen

hydrated Pollen

3. hydrated Pollen

hydrated pollen grain

4. hydrated pollen grain

hydrated pollen grain

5. hydrated pollen grain

detail of exine surface (equator)

6. detail of exine surface (equator)

exine surface

7. exine surface

exine surface

8. exine surface

Ubisch bodies on inner anther wall

9. Ubisch bodies on inner anther wall

Picture legend

  1. hydrated Pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  2. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  3. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  4. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. detail of exine surface (equator) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. Ubisch bodies on inner anther wall - fresh, rehydrated (water) & critical point dried & 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., Heigl H. 2020. Ephedra distachya. In: PalDat - A palynological database. https://www.paldat.org/pub/Ephedra_distachya/303750;jsessionid=90DCDAC355FE538A2B12B4DC305BCFD7; accessed 2024-04-19

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