Rhinanthus minor
Taxonomy: Angiospermae, Lamiales, Orobanchaceae, Rhinanthus
Published: 2016-11-28
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): -, 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: colpate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): irregular, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colpus, aperture condition: tricolpate, colpate, aperture peculiarities: aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: -, sexine: -, SEM ornamentation SEM: 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: lipids, cell number: 2-celled, Ubisch bodies: present
Author(s) of diagnosis: Loos, Claudia
Pictures
1. flower(s)
2. polar view, upper focus
3. optical section
4. polar view, lower focus
5. pollen grain with generative cell (asterisk)
6. polar view
7. equatorial view
8. detail of aperture
9. exine surface
10. dry pollen grains
11. hydrated pollen grain
12. interapertural area of pollen wall
13. aperture
14. vegetative nucleus
Picture legend
- flower(s), photographer: Svojtka, M.
- polar view, upper focus - fresh, acetolyzed, unstained, photographer: Loos, C.
- optical section - fresh, acetolyzed, unstained, photographer: Loos, C.
- polar view, lower focus - fresh, acetolyzed, unstained, photographer: Loos, C.
- pollen grain with generative cell (asterisk) - fixed, glutaraldehyde, aceto-carmine, photographer: Loos, C.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Loos, C.
- dry pollen grains - dry, sputter coated with gold, photographer: Loos, C.
- hydrated pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
- vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Loos, C.
Literature
- (1967) Über das zweikernige endopolyploide Antherentapetum von Rhinanthus. Phytomorphology 17: 188-195
- (1963) Das Verhalten von B-Chromosomen besonderer Ausbildung in den endopolyploiden Riesenkernen des chalazalen Endospermhaustoriums von Rhinanthus. Österr Bot Z 110: 468-480
- (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
- (1994) Exkursionsflora von Österreich : 1180
Copyright and Citation
Cite this publication as:
Loos C., Svojtka M. 2016. Rhinanthus minor. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Rhinanthus_minor/302406; accessed 2025-04-28