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PalDat - Palynological Database

an online publication on recent pollen

Verbascum speciosum

Taxonomy: Spermatophyta, Scrophulariales, Scrophulariaceae, Verbascum

Published: 2005-06-01

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: -,  polarity: isopolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: triangular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate,  suprasculpture SEM: -,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: starch,  cell number: 2-celled,  Ubisch bodies: absent

Author(s) of diagnosis: Loos, C.

Pictures

flower(s)

1. flower(s)

polar view,upper focus

2. polar view, upper focus

optical section

3. optical section

polar view,lower focus

4. polar view, lower focus

pollen grain with vegetative nucleus (asterisk) and generative cell (arrow)

5. pollen grain with vegetative nucleus (asterisk) and generative cell (arrow)

polar view

6. polar view

equatorial view

7. equatorial view

detail of aperture

8. detail of aperture

exine surface

9. exine surface

polar view (dry pollen grain)

10. polar view (dry pollen grain)

dry pollen grain in equatorial view

11. dry pollen grain in equatorial view

pollen grains in cross section

12. pollen grains in cross section

interapertural area of pollen wall

13. interapertural area of pollen wall

apertural area of pollen wall

14. apertural area of pollen wall

Picture legend

  1. flower(s), photographer: Loos, C.
  2. polar view, upper focus - fresh, acetolyzed, unstained, photographer: Loos, C.
  3. optical section - fresh, acetolyzed, unstained, photographer: Loos, C.
  4. polar view, lower focus - fresh, acetolyzed, unstained, photographer: Loos, C.
  5. pollen grain with vegetative nucleus (asterisk) and generative cell (arrow) - fixed, glutaraldehyde, aceto-carmine, photographer: Loos, C.
  6. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
  7. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
  8. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
  9. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
  10. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Loos, C.
  11. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Loos, C.
  12. pollen grains in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
  13. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
  14. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.

Literature

    Copyright and Citation

    Cite this publication as:

    Loos C. 2005. Verbascum speciosum. In: PalDat - A palynological database. https://www.paldat.org/pub/Verbascum_speciosum/113215;jsessionid=12FEAE0D25B29B50AB41AB21889CBC52; accessed 2024-03-28

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