Microrrhinum minus
Taxonomy: Angiospermae, Lamiales, Plantaginaceae, Microrrhinum
Published: 2016-02-08
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): small (10-25 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: heteropolar, 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): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, tricolporate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: perforate, nexine: present, sexine: present, SEM ornamentation SEM: perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: lipids, cell number: 2-celled, Ubisch bodies: absent
Annotations: ornamentation perforate to microreticulate.
Author(s) of diagnosis: Ulrich, Silvia; Halbritter, Heidemarie
Pictures
1. habitus
2. flower(s)
3. flower(s)
4. upper focus
5. optical section
6. lower focus
7. hydrated pollen, polar view
8. hydrated pollen, equatorial view
9. 2-celled pollen
10. no starch detected
11. hydrated pollen, polar view
12. polar view
13. hydrated pollen, equatorial view
14. equatorial view
15. slightly oblique equatorial view
16. aperture
17. detail of aperture
18. detail of aperture
19. exine surface
20. exine surface
21. exine surface
22. polar area
23. dry pollen
24. dry pollen
25. dry pollen
26. cross section of pollen grain
27. pollen wall, aperture area
28. pollen wall, aperture area
29. pollen wall, aperture area
30. pollen wall at transition of aperture and interapertural area
31. pollen wall at transition of aperture and interapertural area
32. pollen wall at transition of aperture and interapertural area
33. pollen wall at transition of aperture and interapertural area
34. pollen wall, interapertural area
35. pollen wall, interapertural area
36. pollen wall, interapertural area
37. cytoplasm with generative cell and organells
38. cytoplasm with organells
Picture legend
- habitus, photographer: Ulrich, S.
- flower(s), photographer: Ulrich, S.
- flower(s), photographer: Halbritter, H.
- upper focus - dry, acetolyzed, unstained, photographer: Ulrich, S.
- optical section - dry, acetolyzed, unstained, photographer: Ulrich, S.
- lower focus - dry, acetolyzed, unstained, photographer: Ulrich, S.
- hydrated pollen, polar view - dry, rehydrated (water), unstained, photographer: Ulrich, S.
- hydrated pollen, equatorial view - dry, rehydrated (water), unstained, photographer: Ulrich, S.
- 2-celled pollen - dry, unfixed, aceto-carmine, photographer: Ulrich, S.
- no starch detected - dry, unfixed, iodine, photographer: Ulrich, S.
- hydrated pollen, polar view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- hydrated pollen, equatorial view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- slightly oblique equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- detail of aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- detail of aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar area - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Ulrich, S.
- dry pollen - dry, sputter coated with gold, photographer: Ulrich, S.
- dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
- dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
- cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Ulrich, S.
- pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
- pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Ulrich, S.
- pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
- pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Ulrich, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Ulrich, S.
- cytoplasm with generative cell and organells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
- cytoplasm with organells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Ulrich, S.
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:
Ulrich S., Halbritter H. 2016. Microrrhinum minus. In: PalDat - A palynological database. https://www.paldat.org/pub/Microrrhinum_minus/300420;jsessionid=1916F2693CDDD797DE7E6E3C77152754; accessed 2024-05-03