Tilia tomentosa
Taxonomy: Angiospermae, Malvales, Malvaceae, Tilioideae, Tilia
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Tilia-tomentosa.htm, https://wu.jacq.org/WU0151994
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): 26-30 µm, 31-35 µm, shortest polar axis in equatorial view (LM): 26-30 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: colporate, polarity: isopolar, P/E-ratio: oblate, shape: convex triangular, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): oblate, shape (dry pollen): -, outline in polar view (dry pollen): circular, infoldings (dry pollen): irregularly infolded, aperture number: 3, aperture type: colporus, aperture condition: colporate, tricolporate, aperture peculiarities: oncus, aperture membrane ornamented, brevicolporus
Ornamentation and Structure
LM ornamentation LM: reticulate, nexine: present, sexine: present, SEM ornamentation SEM: microreticulate, perforate, suprasculpture SEM: striate, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, cell number: 2-celled, Ubisch bodies: present
Author(s) of diagnosis: Sam, Saskia; Heigl, Helmut; Auer, Waltraud; Geier, Christian; Bouchal, Johannes Martin; Grímsson, Friðgeir
Pictures
1. habitus of Tilia tomentosa
2. flowers of Tilia tomentosa
3. upper focus
4. optical section
5. lower focus
6. pollen grain with generative cell and vegetative nucleus
7. hydrated pollen
8. hydrated pollen
9. hydrated pollen
10. acetolyzed pollen, polar view
11. acetolyzed pollen, equatorial view
12. polar view
13. equatorial view
14. aperture
15. exine surface
16. dry pollen grains
17. polar view (dry pollen grain)
18. anther wall with Ubisch bodies
19. acetolyzed pollen, polar view
20. acetolyzed pollen, exine surface
21. acetolyzed pollen, aperture
22. pollen grain in cross section
23. interapertural area of pollen wall
24. apertural area of pollen wall
Picture legend
- habitus of Tilia tomentosa, photographer: Sam, S.
- flowers of Tilia tomentosa, photographer: Sam, S.
- upper focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- optical section - fresh, acetolyzed, unstained, photographer: Sam, S.
- lower focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- pollen grain with generative cell and vegetative nucleus - fresh, unfixed, aceto-carmine, photographer: Sam, S.
- 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, DMP & critical point dried, photographer: Sam, S.
- equatorial view - fresh, DMP & critical point dried, photographer: Sam, S.
- aperture - fresh, DMP & critical point dried, photographer: Sam, S.
- exine surface - fresh, DMP & critical point dried, photographer: Sam, S.
- dry pollen grains - dry, sputter coated with gold, photographer: Sam, S.
- polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Sam, S.
- anther wall with Ubisch bodies - fresh, DMP & critical point dried, photographer: Sam, S.
- acetolyzed pollen, polar 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, aperture - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
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
- (1994) Exkursionsflora von Österreich : 1180
- (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:
Sam S., Heigl H., Auer W., Geier C., Bouchal J., Grímsson F. 2024. Tilia tomentosa. In: PalDat - A palynological database. https://www.paldat.org/pub/Tilia_tomentosa/306673; accessed 2024-11-01