Spiranthes cernua
Taxonomy: Angiospermae, Asparagales, Orchidaceae, Spiranthes
Published: 2016-11-07
Pollen Description
Shape, Size and Aperture
pollen unit: tetrad, dispersal unit and peculiarities: pollinarium, 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: irregular, outline in polar view: irregular, dominant orientation (LM): -, P/E-ratio (dry pollen): -, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): irregularly infolded, aperture number: none, aperture type: no aperture, aperture condition: inaperturate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: reticulate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Author(s) of diagnosis: Svojtka, Matthias
Pictures
1. flower(s)
2. pollinarium
3. pollinia
4. tetrads (forming pollinium)
5. tetrads
6. exine surface
7. caudicula
8. detail of caudicula
9. viscidium
Picture legend
- flower(s), photographer: Speckmaier, M.
- pollinarium - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- pollinia - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- tetrads (forming pollinium) - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- tetrads - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- exine surface - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- caudicula - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- detail of caudicula - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
- viscidium - dry, formaldehyde & critical point dried & sputter coated with gold, photographer: Svojtka, M.
Literature
Copyright and Citation
Cite this publication as:
Svojtka M., Speckmaier M. 2016. Spiranthes cernua. In: PalDat - A palynological database. https://www.paldat.org/pub/Spiranthes_cernua/302003; accessed 2025-05-01