Maclura pomifera
Taxonomy: Angiospermae, Rosales, Moraceae, Maclura
Links: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:148738-2
Published: 2026-07-28
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): small (10-25 µm), size of hydrated pollen (LM): -, shortest polar axis in equatorial view (LM): 16-20 µm, longest polar axis in equatorial view (LM): 21-25 µm, shortest diameter in equatorial or polar view (LM): 21-25 µm, longest diameter in equatorial or polar view (LM): 21-25 µm, pollen class: porate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, 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: 3, aperture type: porus, aperture condition: porate, triporate, aperture peculiarities: operculum, annulus
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: -, sexine: -, SEM ornamentation SEM: microechinate, rugulate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Annotations: annulus indistinct, aperture number also 4 or 5; P/E-Ratio in hydrated condition isodiametric to oblate
Author(s) of diagnosis: Halbritter, Heidemarie; Koelzer, Karen
Pictures
1. hydrated pollen, polar view
2. hydrated pollen, equatorial view
3. hydrated pollen, polar view
4. hydrated pollen, polar view
5. hydrated pollen, polar view
6. hydrated pollen, polar view
7. hydrated pollen, polar view
8. hydrated pollen, polar view
9. hydrated pollen, apertures
10. polar view
11. equatorial view
12. equatorial view
13. aperture
14. aperture
15. exine surface
16. exine surface
17. dry pollen
18. Ubisch bodies on locule wall
Picture legend
- hydrated pollen, polar view - fresh, glycerine-gelatine, unstained, photographer: Koelzer, K.
- hydrated pollen, equatorial view - fresh, glycerine-gelatine, unstained, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, unstained, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, unstained, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, fuchsin, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, fuchsin, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, fuchsin, photographer: Koelzer, K.
- hydrated pollen, polar view - fresh, glycerine-gelatine, fuchsin, photographer: Koelzer, K.
- hydrated pollen, apertures - fresh, glycerine-gelatine, fuchsin, photographer: Koelzer, K.
- 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.
- 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.
- 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.
- 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., Koelzer K. 2026. Maclura pomifera. In: PalDat - A palynological database. /pub/Maclura_pomifera/307033; accessed 2026-07-30