Tilia euchlora
Taxonomy: Angiospermae, Malvales, Malvaceae, Tilia
Published: 2021-08-02
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, 36-40 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): 36-40 µm, longest diameter in equatorial or polar view (LM): 36-40 µm, pollen class: colporate, polarity: isopolar, P/E-ratio: oblate, shape: -, 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: brevicolporus, oncus, aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: reticulate, nexine: -, sexine: -, SEM ornamentation SEM: microreticulate, perforate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, cell number: 2-celled, Ubisch bodies: present
Annotations: dry pollen irregularly infolded to cup-shaped
Author(s) of diagnosis: Sam, Saskia; Auer, Waltraud
Pictures
Picture legend
- habitus of Tilia euchlora, photographer: Sam, S.
- flowers of Tilia euchlora, 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: Auer, W.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- 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.
- 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.
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., Auer W. 2021. Tilia euchlora. In: PalDat - A palynological database. https://www.paldat.org/pub/Tilia_euchlora/306425;jsessionid=7621A172A1BB65CCEF483C85E4C5BEE0; accessed 2024-05-07