Berkheya purpurea
Taxonomy: Angiospermae, Asterales, Asteraceae, Berkheya
Published: 2016-03-21
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: colporate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): -, shape (dry pollen): polygonal, outline in polar view (dry pollen): polygonal, 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: -, nexine: -, sexine: -, SEM ornamentation SEM: echinate, microreticulate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Author(s) of diagnosis: Halbritter, Heidemarie
Pictures
1. inflorescence(s)
2. inflorescence of Berkheya purpurea (with Bombus lapidarius)
3. inflorescence(s)
4. polar view
5. oblique view
6. equatorial view
7. aperture
8. exine surface
9. dry pollen grains
Picture legend
- inflorescence(s), photographer: Buchner, R.
- inflorescence of Berkheya purpurea (with Bombus lapidarius), photographer: Buchner, R.
- inflorescence(s), photographer: Buchner, R.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- oblique view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
Literature
- (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:
Halbritter H., Buchner R. 2016. Berkheya purpurea. In: PalDat - A palynological database. https://www.paldat.org/pub/Berkheya_purpurea/300697;jsessionid=E95159DC18AD850A2FD13B5793CE997C; accessed 2024-04-17