Lactuca sativa
Taxonomy: Angiospermae, Asterales, Asteraceae, Lactuca
Links: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:228239-1
Published: 2026-07-23
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): 31-35 µm, shortest polar axis in equatorial view (LM): 26-30 µm, longest polar axis in equatorial view (LM): 31-35 µm, shortest diameter in equatorial or polar view (LM): 26-30 µm, longest diameter in equatorial or polar view (LM): 31-35 µm, pollen class: colporate, lophate, polarity: isopolar, P/E-ratio: oblate, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): -, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): no suitable term, aperture number: 3, aperture type: colporus, aperture condition: tricolporate, colporate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: lophate, echinate, nexine: -, sexine: -, SEM ornamentation SEM: microreticulate, lophate, echinate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Annotations: many aborted pollen grains
Author(s) of diagnosis: Halbritter, Heidemarie; Oberleitner, Sarah; Hoffmann, Julia
Pictures
1. hydrated pollen, equatorial view, aperture
2. hydrated pollen, equatorial view
3. hydrated pollen, equatorial view
4. hydrated pollen
5. hydrated pollen, polar view
6. hydrated pollen, polar view
7. hydrated pollen, polar view
8. hydrated pollen, polar view
9. hydrated pollen, equatorial view, aperture
10. hydrated pollen, equatorial view, aperture
11. hydrated pollen, equatorial view
12. hydrated pollen, polar view
13. hydrated pollen, polar view
14. hydrated pollen, polar view
15. oblique polar view
16. equatorial view
17. oblique equatorial view
18. aperture
19. exine surface
20. exine surface
21. polar area
22. dry pollen
Picture legend
- hydrated pollen, equatorial view, aperture - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, equatorial view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, equatorial view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, unstained, photographer: Oberleitner, S.
- hydrated pollen, equatorial view, aperture - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- hydrated pollen, equatorial view, aperture - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- hydrated pollen, equatorial view - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- hydrated pollen, polar view - fixed, glycerine-gelatine, fuchsin, photographer: Oberleitner, S.
- oblique polar view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- oblique equatorial view - 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 - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - 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.
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:
Halbritter H., Oberleitner S., Hoffmann J. 2026. Lactuca sativa. In: PalDat - A palynological database. /pub/Lactuca_sativa/307056; accessed 2026-07-25