Pistia stratiotes
Taxonomy: Angiospermae, Alismatales, Araceae, Pistia
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: starch, cell number: -, Ubisch bodies: -
Annotations: ornamentation elements not resistant to acetolysis
Author(s) of diagnosis: Weber, Martina; Halbritter, Heidemarie
Pictures
1. flowers of Pistia stratiotes
2. hydrated pollen
3. equatorial view
4. pollen surface
5. pollen surface at apex
6. dry pollen grains
7. pollen grain in cross section
8. pollen wall
9. generative cell and vegetative nucleus
Picture legend
- flowers of Pistia stratiotes, photographer: Halbritter, H.
- hydrated pollen - 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.
- pollen surface at apex - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.
- pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.
- generative cell and vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, 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:
Weber M., Halbritter H. 2016. Pistia stratiotes. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Pistia_stratiotes/301841;jsessionid=E2C9FA549D9EF58497308EF50E326BE2; accessed 2025-01-10