Dionaea muscipula
Taxonomy: Angiospermae, Caryophyllales, Droseraceae, Dionaea
Published: 2016-11-29
Pollen Description
Shape, Size and Aperture
pollen unit: tetrad, dispersal unit and peculiarities: tetrad, size (pollen unit): large (51-100 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: porate, tetrad, polarity: heteropolar, 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): circular, infoldings (dry pollen): not infolded, aperture number: >6, aperture type: porus, aperture condition: porate, aperture peculiarities: operculum, stephanoaperturate
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: clavate, gemmate, suprasculpture SEM: -, TEM tectum: atectate, infratectum: absent, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: primexine matrix, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Author(s) of diagnosis: Halbritter, Heidemarie; Hesse, Michael
Pictures
1. flower(s)
2. hydrated tetrad
3. hydrated tetrad
4. apertures
5. aperture with operculum
6. exine surface (acetolysed)
7. exine surface (acetolysed)
8. dry tetrads
9. monads in cross section (protrusions with operculum marked by asterisk)
10. detail of aperture (protrusion) with operculum and thick intine
11. Ubisch bodies (arrows) and pollenkitt near the locular wall
Picture legend
- flower(s), photographer: Halbritter, H.
- hydrated tetrad - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- hydrated tetrad - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- apertures - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture with operculum - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface (acetolysed) - fresh, acetolyzed, photographer: Halbritter, H.
- exine surface (acetolysed) - fresh, acetolyzed, photographer: Halbritter, H.
- dry tetrads - dry, sputter coated with gold, photographer: Halbritter, H.
- monads in cross section (protrusions with operculum marked by asterisk) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
- detail of aperture (protrusion) with operculum and thick intine - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
- Ubisch bodies (arrows) and pollenkitt near the locular wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
Literature
- (2012) The unique design of pollen tetrads in Dionaea and Drosera Grana 51: 148-157
- (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., Hesse M. 2016. Dionaea muscipula. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Dionaea_muscipula/302521; accessed 2025-04-27