Thalictrum flavum
Taxonomy: Angiospermae, Ranunculales, Ranunculaceae, Thalictrum
Published: 2016-10-21
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): -, longest polar axis in equatorial view (LM): -, shortest diameter in equatorial or polar view (LM): -, longest diameter in equatorial or polar view (LM): -, pollen class: porate, polarity: -, 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): aperture(s) sunken, aperture number: >6, aperture type: porus, aperture condition: pantoporate, porate, aperture peculiarities: pantoaperturate, aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: echinate, nexine: -, sexine: -, SEM ornamentation SEM: perforate, microechinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: lipids, starch, cell number: 2-celled, Ubisch bodies: present
Annotations: number and shape of apertures variable
Author(s) of diagnosis: Auer, Angelika
Pictures
1. flower(s)
2. upper focus
3. optical section
4. lower focus
5. generative cell (asterisk) and vegetative nucleus
6. polar view
7. equatorial view
8. exine surface
9. detail of colpus membrane
10. polar view (dry pollen grain)
11. dry pollen grain in equatorial view
12. interapertural area of pollen wall, intine (I), endexine (E)
13. apertural area of pollen wall, intine (I), endexine (E)
14. pollen wall (bottom) and tapetum cells with Ubisch bodies (U)
Picture legend
- flower(s), photographer: Auer, A.
- upper focus - fresh, acetolyzed, unstained, photographer: Auer, A.
- optical section - fresh, acetolyzed, unstained, photographer: Auer, A.
- lower focus - fresh, acetolyzed, unstained, photographer: Auer, A.
- generative cell (asterisk) and vegetative nucleus - fixed, formalin-acetic-alcohol, aceto-carmine, photographer: Auer, A.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
- detail of colpus membrane - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Auer, A.
- polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Auer, A.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Auer, A.
- interapertural area of pollen wall, intine (I), endexine (E) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Auer, A.
- apertural area of pollen wall, intine (I), endexine (E) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Auer, A.
- pollen wall (bottom) and tapetum cells with Ubisch bodies (U) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Auer, A.
Literature
- (1969) Zur Blütenmorphologie und Bestäubungsökologie einiger Ranunculaceen (Cimicifuga L., Actaea L., Thalictrum L.). Preslia 41: 213-219
- (1971) Mode of pollination and floral sexuality in Thalictrum. Evolution 25: 659-668
- (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
- (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:
Auer A. 2016. Thalictrum flavum. In: PalDat - A palynological database. https://www.paldat.org/pub/Thalictrum_flavum/301681;jsessionid=9010DAA1969B96252E199DB70F0CA7E9; accessed 2025-04-03