Lolium perenne
Taxonomy: Angiospermae, Poales, Poaceae, Lolium
Published: 2024-06-20
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): 21-25 µm, 26-30 µm, 31-35 µm, shortest polar axis in equatorial view (LM): 21-25 µm, longest polar axis in equatorial view (LM): 26-30 µm, shortest diameter in equatorial or polar view (LM): 26-30 µm, longest diameter in equatorial or polar view (LM): 31-35 µm, pollen class: ulcerate, polarity: heteropolar, P/E-ratio: prolate, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): prolate, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): irregularly infolded, aperture number: 1, aperture type: ulcus, aperture condition: ulcerate, aperture peculiarities: operculum, annulus
Ornamentation and Structure
LM ornamentation LM: psilate, nexine: present, sexine: present, SEM ornamentation SEM: nanoechinate, areolate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: in aperture only, intine: monolayered, wall peculiarities: -, supratectal element: echinus
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, cell number: 3-celled, Ubisch bodies: present
Annotations: shape spheroidal to prolate
Author(s) of diagnosis: Halbritter, Heidemarie; Schneider, H.; Weber, M.; Auer, Waltraud; Ulrich, Silvia
Pictures
1. flowers of Lolium perenne
2. hydrated pollen
3. hydrated pollen
4. hydrated pollen
5. polar distal view
6. equatorial view
7. aperture
8. exine surface
9. dry pollen
10. pollen grain in cross section
11. pollen wall
12. porus with operculum
Picture legend
- flowers of Lolium perenne, photographer: Schneider, H.
- 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 distal 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 - dry, sputter coated with gold, photographer: Halbritter, H.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
- pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
- porus with operculum - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
Literature
Copyright and Citation
Cite this publication as:
Halbritter H., Schneider H., Weber M., Auer W., Ulrich S. 2024. Lolium perenne. In: PalDat - A palynological database. https://www.paldat.org/pub/Lolium_perenne/306728; accessed 2024-11-10