Steudnera assamica
Taxonomy: Angiospermae, Alismatales, Araceae, Steudnera
Published: 2016-11-03
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: plicate, polarity: -, P/E-ratio: oblate, shape: -, outline in polar view: elliptic, dominant orientation (LM): -, P/E-ratio (dry pollen): oblate, shape (dry pollen): -, outline in polar view (dry pollen): elliptic, infoldings (dry pollen): not infolded, aperture number: none, aperture type: no aperture, aperture condition: inaperturate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: -, suprasculpture SEM: -, TEM tectum: -, infratectum: absent, foot layer: absent, endexine: spongy-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: -, cell number: -, Ubisch bodies: absent
Annotations: ektexine missing; ornamentation elements not resistant to acetolysis
Author(s) of diagnosis: Halbritter, Heidemarie; Weber, Martina
Pictures
1. hydrated pollen grains
2. equatorial view
3. pollen surface
4. equatorial view
5. dry pollen grains
6. dry pollen grain in equatorial view
7. pollen surface
8. pollen grain with generative cell
9. pollen wall
Picture legend
- hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- pollen surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
- pollen surface - dry, sputter coated with gold, photographer: Halbritter, H.
- pollen grain with generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
- pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
Literature
- (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., Weber M. 2016. Steudnera assamica. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Steudnera_assamica/301847;jsessionid=A95D5EC0141758CC6BB132D311468314; accessed 2025-01-26