Sequoiadendron giganteum
Taxonomy: Gymnospermae, Pinales, Cupressaceae, Sequoioideae, Sequoiadendron
Published: 2020-02-17
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: heteropolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): -, shape (dry pollen): cup-shaped, outline in polar view (dry pollen): circular, infoldings (dry pollen): aperture(s) sunken, aperture number: 1, aperture type: leptoma, aperture condition: -, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: present, sexine: present, SEM ornamentation SEM: fossulate, microechinate, microverrucate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: papilla, adhering Ubisch bodies, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Author(s) of diagnosis: Bouchal, Johannes Martin; Denk, Thomas; Halbritter, Heidemarie
Pictures
1. acetolyzed pollen, equatorial view, hydrated pollen
2. acetolyzed pollen, equatorial view
3. acetolyzed pollen, polar view
4. distal view
5. equatorial view, exine surface, Ubisch bodies
6. equatorial view
7. proximal view
8. equatorial view, papilla, Ubisch bodies
9. distal view, acetolyzed pollen, papilla
10. equatorial view, exine surface, acetolyzed pollen
11. acetolyzed pollen, Ubisch bodies
Picture legend
- acetolyzed pollen, equatorial view, hydrated pollen - dry, acetolyzed & rehydrated (water) & glycerine, unstained, photographer: Bouchal, J.
- acetolyzed pollen, equatorial view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
- acetolyzed pollen, polar view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
- distal view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bouchal, J.
- equatorial view, exine surface, Ubisch bodies - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bouchal, J.
- equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bouchal, J.
- proximal view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bouchal, J.
- equatorial view, papilla, Ubisch bodies - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bouchal, J.
- distal view, acetolyzed pollen, papilla - dry, acetolyzed & ethanol (70 %) & sputter coated with gold, photographer: Bouchal, J.
- equatorial view, exine surface, acetolyzed pollen - dry, acetolyzed & ethanol (70 %) & sputter coated with gold, photographer: Bouchal, J.
- acetolyzed pollen, Ubisch bodies - dry, acetolyzed & ethanol (70 %) & sputter coated with gold, photographer: Bouchal, J.
Literature
- (1988) The pollen of Taxodiaceae and its peculiarities Metsniereba
- (2020) Low taxonomic resolution of papillate Cupressaceae pollen (former Taxodiaceae) impairs their applicability for palaeo-habitat reconstruction Grana 59
Copyright and Citation
Cite this publication as:
Bouchal J., Denk T., Halbritter H. 2020. Sequoiadendron giganteum. In: PalDat - A palynological database. https://www.paldat.org/pub/Sequoiadendron_giganteum/303691;jsessionid=4C83BBD308A0BF9347E47B8BFB3C90A0; accessed 2024-04-16