Tilia platyphyllos
Taxonomy: Angiospermae, Malvales, Malvaceae, Tilioideae, Tilia
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Tilia-platyphyllos.htm, https://wu.jacq.org/WU0151970
Published: 2024-02-13
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): 21-25 µm, 31-35 µm, shortest polar axis in equatorial view (LM): 21-25 µm, longest polar axis in equatorial view (LM): -, shortest diameter in equatorial or polar view (LM): 31-35 µm, longest diameter in equatorial or polar view (LM): 31-35 µm, pollen class: colpate, polarity: isopolar, P/E-ratio: oblate, shape: convex triangular, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): -, shape (dry pollen): cup-shaped, outline in polar view (dry pollen): circular, infoldings (dry pollen): no suitable term, aperture number: 3, aperture type: colporus, aperture condition: colporate, tricolporate, aperture peculiarities: brevicolporus
Ornamentation and Structure
LM ornamentation LM: reticulate, nexine: present, sexine: present, SEM ornamentation SEM: homobrochate, perforate, microreticulate, suprasculpture SEM: -, TEM tectum: semitectate, infratectum: columellate, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: starch, cell number: -, Ubisch bodies: present
Annotations: pollen in dry condition: polar area sunken; endexine restricted to apertures
Author(s) of diagnosis: Halbritter, Heidemarie; Hesse, Michael; Heigl, Helmut; Auer, Waltraud; Geier, Christian; Bouchal, Johannes Martin; Grímsson, Friðgeir
Pictures
1. hydrated pollen
2. hydrated pollen
3. hydrated pollen
4. acetolyzed pollen, polar view
5. acetolyzed pollen, equatorial view
6. polar view
7. detail of aperture
8. exine surface
9. polar view of dry pollen grain
10. dry pollen grain in equatorial view
11. acetolyzed pollen, polar view
12. acetolyzed pollen, equatorial view
13. acetolyzed pollen, exine surface
14. acetolyzed pollen, exine surface
15. acetolyzed pollen, aperture
16. pollen grains and part of tapetum wall (bottom)
17. hydrated pollen grain
18. aperture
19. detail of pollen wall
20. aperture
21. pollenwall (left) and tapetum wall with Ubisch bodies
22. Ubisch bodies on locule wall
Picture legend
- 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.
- acetolyzed pollen, polar view - dry, acetolyzed & glycerine, unstained, photographer: Geier, C.
- acetolyzed pollen, equatorial view - dry, acetolyzed & glycerine, unstained, photographer: Geier, C.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, critical point dried, photographer: Halbritter, H.
- polar view of dry pollen grain - dry, sputter coated with gold, photographer: Halbritter, H.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
- acetolyzed pollen, polar view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- acetolyzed pollen, equatorial view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- acetolyzed pollen, exine surface - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- acetolyzed pollen, exine surface - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- acetolyzed pollen, aperture - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- pollen grains and part of tapetum wall (bottom) - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
- hydrated pollen grain - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
- aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
- detail of pollen wall - fresh, glutaraldehyde & osmium, uranyl acetate & lead citrate, photographer: Hesse, M.
- aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
- pollenwall (left) and tapetum wall with Ubisch bodies - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
- Ubisch bodies on locule wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Hesse, M.
Literature
- (1976) The pollination biology of Tilia. Amer J Bot 63: 1203-1212
- (1961) The fine structure of the pollen wall of Tilia platyphyllos. New Phytol 3?: 393-399
- (1971) Scanning electron microscopy of Tilia pollen. New Phytol 70: 687-692
- (1993) Pollenkitt development and composition in Tilia platyphyllos (Tiliaceae) analysed by conventional and energy filtering TEM. Pl Syst Evol, Suppl 7: 39-52
Copyright and Citation
Cite this publication as:
Halbritter H., Hesse M., Heigl H., Auer W., Geier C., Bouchal J., Grímsson F. 2024. Tilia platyphyllos. In: PalDat - A palynological database. https://www.paldat.org/pub/Tilia_platyphyllos/306672;jsessionid=265B7A56728246D6C75CDE8574FDC0E4; accessed 2024-11-01