Poa angustifolia
Taxonomy: Angiospermae, Poales, Poaceae, Poa
Published: 2016-07-18
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: ulcerate, polarity: heteropolar, P/E-ratio: prolate, shape: -, 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): interapertural area sunken, aperture number: 1, aperture type: ulcus, aperture condition: ulcerate, aperture peculiarities: annulus, operculum
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: -, sexine: -, SEM ornamentation SEM: areolate, microechinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, polysaccharide vesicles, cell number: 3-celled, Ubisch bodies: present
Author(s) of diagnosis: Diethart, Bernadette
Pictures
1. habitus
2. habitus
3. flower(s)
4. pollen grain with two sperm cells
5. upper focus
6. optical section
7. lower focus
8. polar view
9. slightly oblique polar view
10. equatorial view
11. aperture
12. exine surface
13. dry pollen grains
14. polar view (dry pollen grain)
15. dry pollen grain in equatorial view
16. anther wall with Ubisch bodies
17. pollen grain in cross section
18. interapertural area of pollen wall
19. apertural area of pollen wall
20. anther wall with Ubisch bodies
Picture legend
- habitus, photographer: Diethart, B.
- habitus, photographer: Diethart, B.
- flower(s), photographer: Diethart, B.
- pollen grain with two sperm cells - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
- upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
- optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
- lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- slightly oblique polar view - fresh, rehydrated (water) & sputter coated with gold & critical point dried, photographer: Diethart, B.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- dry pollen grains - dry, sputter coated with gold, photographer: Diethart, B.
- polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Diethart, B.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Diethart, B.
- anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
- apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
- anther wall with Ubisch bodies - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
Literature
- (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:
Diethart B. 2016. Poa angustifolia. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Poa_angustifolia/301220;jsessionid=665FD36B7E3326B530E8F71CC1B9C60D; accessed 2025-01-25