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PalDat - Palynological Database

an online publication on recent pollen

Pseuderanthemum crenulatum

Taxonomy: Angiospermae, Lamiales, Acanthaceae, Pseuderanthemum

Published: 2020-02-04

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  pollen class: colporate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  outline in polar view (dry pollen): lobate,  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: reticulate, free-standing columellae,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

inflorescence(s)

1. inflorescence(s)

hydrated pollen

2. hydrated pollen

polar view

3. polar view

equatorial view

4. equatorial view

oblique view

5. oblique view

aperture

6. aperture

exine surface

7. exine surface

polar area

8. polar area

dry pollen

9. dry pollen

pollen grain on orbicular wall

10. pollen grain on orbicular wall

Ubisch bodies on locule wall

11. Ubisch bodies on locule wall

Picture legend

  1. inflorescence(s), photographer: Weis, B.
  2. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. oblique view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  10. pollen grain on orbicular wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. Ubisch bodies on locule wall - dry, 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., Weis B. 2020. Pseuderanthemum crenulatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Pseuderanthemum_crenulatum/303635;jsessionid=3ADDC53D3622D379784720712688A790; accessed 2020-02-25