Rhododendron ferrugineum
Taxonomy: Angiospermae, Ericales, Ericaceae, Rhododendron
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Rhododendron-ferrugineum.htm
Published: 2020-12-07
Pollen Description
Shape, Size and Aperture
pollen unit: tetrad, dispersal unit and peculiarities: tetrad tetrahedral, size (pollen unit): medium-sized (26-50 µm), size of hydrated pollen (LM): 41-50 µm, shortest polar axis in equatorial view (LM): 31-35 µm, longest polar axis in equatorial view (LM): 36-40 µm, shortest diameter in equatorial or polar view (LM): 36-40 µm, longest diameter in equatorial or polar view (LM): 36-40 µm, pollen class: tetrad, polarity: heteropolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): isodiametric, shape (dry pollen): -, outline in polar view (dry pollen): no suitable term, infoldings (dry pollen): interapertural area sunken, aperture number: 3, aperture type: colporus, aperture condition: tricolporate, colporate, aperture peculiarities: aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: psilate, nexine: -, sexine: -, SEM ornamentation SEM: psilate, fossulate, perforate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: viscin threads, tenuitas, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Annotations: single pollen grains of tetrad spheroidal to oblate, tenuitates in interapertural equatorial areas
Author(s) of diagnosis: Halbritter, Heidemarie; Heigl, Helmut
Pictures
1. flower(s)
2. hydrated pollen
3. hydrated pollen
4. hydrated pollen
5. hydrated pollen
6. tetrad
7. aperture
8. exine surface, tenuitates in equatorial region
9. exine surface with viscin thread
10. polar area
11. dry pollen
12. Ubisch bodies on locule wall
Picture legend
- flower(s), photographer: Sonnleitner, M.
- hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- tetrad - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface, tenuitates in equatorial region - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface with viscin thread - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar area - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
- Ubisch bodies on locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
Literature
Copyright and Citation
Cite this publication as:
Halbritter H., Heigl H., Sonnleitner M. 2020. Rhododendron ferrugineum. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Rhododendron_ferrugineum/304294; accessed 2025-04-27