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PalDat - Palynological Database

an online publication on recent pollen

Echium italicum

Taxonomy: Angiospermae, unplaced, Boraginaceae, Echium

Published: 2016-04-22

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colporate,  polarity: heteropolar,  shape: prolate,  outline in polar view: circular,  shape (dry pollen): prolate,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate, perforate, granulate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -

Miscellaneous

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

Annotations

pollen pear shaped (in hydrated and dry contition); aperture number varies from 3 to 4 colpori; ornamentation perforate (polar area) to microreticulate (equator)

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

habitus

1. habitus

inflorescence(s)

2. inflorescence(s)

hydrated pollen

3. hydrated pollen

polar view

4. polar view

equatorial view,tetracolporate pollen grain

5. equatorial view, tetracolporate pollen grain

oblique view

6. oblique view

aperture

7. aperture

exine surface

8. exine surface

polar area

9. polar area

polar area

10. polar area

dry pollen

11. dry pollen

Picture legend

  1. habitus, photographer: Weis, B.
  2. inflorescence(s), photographer: Weis, B.
  3. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. equatorial view, tetracolporate pollen grain - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. oblique view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. 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., Weis B. 2016. Echium italicum. In: PalDat - A palynological database. https://www.paldat.org/pub/Echium_italicum/300858;jsessionid=88DBCB681C3D7AC69B4AD0239E7D6182; accessed 2018-11-20