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PalDat - Palynological Database

an online publication on recent pollen

Mahonia aquifolium

Taxonomy: Spermatophyta, Ranunculales, Berberidaceae, Mahonia

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: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): spheroidal,  outline in polar view (dry pollen): polygonal,  infoldings (dry pollen): aperture(s) sunken,  aperture number: >6,  aperture type: -,  aperture condition: colpate,  aperture peculiarities: -

Ornamentation and Structure

LM  ornamentation LM: psilate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: perforate, psilate,  suprasculpture SEM: -,  TEM  tectum: eutectate,  infratectum: absent,  foot layer: absent,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: With apertures which divides the exine into 4-8 plates. Sexine and nexine indistinguishable.

Author(s) of diagnosis: Weber, M.; Oberschneider, W.; Halbritter, H.

Pictures

flower(s)

1. flower(s)

acetolysed pollen grains, partially broken up

2. acetolysed pollen grains, partially broken up

upper polar focus of pollen grain

3. upper polar focus of pollen grain

hydrated pollen grain

4. hydrated pollen grain

hydrated pollen grain

5. hydrated pollen grain

hydrated pollen grain

6. hydrated pollen grain

detail of aperture

7. detail of aperture

exine surface

8. exine surface

exine surface

9. exine surface

dry pollen grains

10. dry pollen grains

dry pollen grain

11. dry pollen grain

dry pollen grain

12. dry pollen grain

pollen grain in cross section, vegetative nucleus (asterisk) and generative cell

13. pollen grain in cross section, vegetative nucleus (asterisk) and generative cell

interapertural area of pollen wall

14. interapertural area of pollen wall

pollen wall

15. pollen wall

aperture

16. aperture

Picture legend

  1. flower(s), photographer: Oberschneider, W.
  2. acetolysed pollen grains, partially broken up - fresh, acetolyzed, unstained, photographer: Halbritter, H.
  3. upper polar focus of pollen grain - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  4. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. hydrated pollen grain - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  6. hydrated pollen grain - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  7. detail of aperture - fresh, rehydration (water) & chloroform & DMP & critical point dried, photographer: Oberschneider, W.
  8. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. exine surface - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  10. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  11. dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  12. dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  13. pollen grain in cross section, vegetative nucleus (asterisk) and generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
  14. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.
  15. pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  16. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.

Literature

  • Oberschneider W (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
  • Roland-Heydacker F (1979) Aspects ultrastructuraux de l'ontogénie du pollen et du tapis chez Mahonia aquifolium Nutt. Berberidaceae. Pollen et Spores 21: 259-278
  • Roland-Heydacker F (1974) Caractères ultrastructuraux et cytochimiques particuliers du sporoderme des pollens de Berberis vulgaris L. et de Mahonia aquifolium Nutt. CR Acad Sc Paris 278: 1475-1477

Copyright and Citation

Cite this publication as:

Weber M., Oberschneider W., Halbritter H. 2005. Mahonia aquifolium. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Mahonia_aquifolium/110786; accessed 2025-04-28

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