Crinum augustum
Taxonomy: Spermatophyta, Asparagales, Amaryllidaceae, Crinum
Published: 2012-11-04
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): large (51-100 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: sulcate, polarity: isopolar, P/E-ratio: oblate, shape: -, outline in polar view: elliptic, dominant orientation (LM): -, P/E-ratio (dry pollen): oblate, shape (dry pollen): -, outline in polar view (dry pollen): no suitable term, infoldings (dry pollen): aperture(s) sunken, aperture number: 2, aperture type: -, aperture condition: sulcate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: microbaculate, echinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Annotations: The 2 apertures are situated in the equator and parallel to it, therefore the aperture condition is disulcate and not dicolpate (in this case the apertures are orientated meridionally); the shape of hydrated pollen is oblate with elliptic outline to spheroidal
Author(s) of diagnosis: Halbritter, H.
Pictures
Picture legend
- flowers of Crinum angustum, photographer: Halbritter, H.
- oblique view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view (oblique) - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- oblique view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- aperture - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture detail - 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 - dry, sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
- dry pollen grains - dry, photographer: Halbritter, H.
Literature
Copyright and Citation
Cite this publication as:
Halbritter H. 2012. Crinum augustum. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Crinum_augustum/212815; accessed 2025-04-28