Ledum groenlandicum
Taxonomy: Spermatophyta, Ericales, Ericaceae, Ledum
Published: 2010-09-25
Pollen Description
Shape, Size and Aperture
pollen unit: tetrad, dispersal unit and peculiarities: tetrad, 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: tetrad, polarity: heteropolar, P/E-ratio: -, shape: -, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): -, shape (dry pollen): -, outline in polar view (dry pollen): irregular, infoldings (dry pollen): interapertural area sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: fossulate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: viscin threads, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: -, cell number: -, Ubisch bodies: absent
Annotations: tetrahedral tetrads, often irregular, many aborted pollen grains, only a few viscin threads
Author(s) of diagnosis: Buchner, R.; Halbritter, H.
Pictures
1. habitus
2. flower(s)
3. hydrated tetrads
4. hydrated tetrad
5. hydrated tetrad
6. apertures
7. exine surface
8. polar area
9. viscin thread
10. dry tetrads
Picture legend
- habitus, photographer: Buchner, R.
- flower(s), photographer: Buchner, R.
- hydrated tetrads - 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.
- 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.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- viscin thread - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry tetrads - dry, sputter coated with gold, photographer: Halbritter, H.
Literature
Copyright and Citation
Cite this publication as:
Buchner R., Halbritter H. 2010. Ledum groenlandicum. In: PalDat - A palynological database. https://www.paldat.org/pub/Ledum_groenlandicum/107864;jsessionid=1B25395B30476429B8053797846247D9; accessed 2024-04-18