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PalDat - Palynological Database

an online publication on recent pollen

Solidago canadensis

Taxonomy: Angiospermae, Asterales, Asteraceae, Solidago

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Solidago-canadensis.htm

Published: 2020-12-21

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): 16-20 µm,  shortest polar axis in equatorial view (LM): 16-20 µm,  longest polar axis in equatorial view (LM): 16-20 µm,  shortest diameter in equatorial or polar view (LM): 16-20 µm,  longest diameter in equatorial or polar view (LM): 16-20 µm,  pollen class: colporate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  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: echinate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: echinate, 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: -,  cell number: 3-celled,  Ubisch bodies: absent

Annotations: dry pollen grains also irregularly infolded; apertures sometimes not infolded

Author(s) of diagnosis: Diethart, Bernadette; Heigl, Helmut

Pictures

flowers of Solidago canadensis

1. flowers of Solidago canadensis

flowers of Solidago canadensis

2. flowers of Solidago canadensis

pollen grain with vegetative nucleus (left) and two sperm cells

3. pollen grain with vegetative nucleus (left) and two sperm cells

upper focus

4. upper focus

optical section

5. optical section

lower focus

6. lower focus

hydrated pollen

7. hydrated pollen

hydrated pollen

8. hydrated pollen

hydrated pollen

9. hydrated pollen

polar view

10. polar view

equatorial view

11. equatorial view

aperture

12. aperture

detail of aperture

13. detail of aperture

exine surface

14. exine surface

dry pollen grains

15. dry pollen grains

dry pollen grain

16. dry pollen grain

pollen grain in cross section

17. pollen grain in cross section

interapertural area of pollen wall

18. interapertural area of pollen wall

apertural area of pollen wall

19. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

20. pollen wall at transition of aperture and interapertural area

Picture legend

  1. flowers of Solidago canadensis, photographer: Diethart, B.
  2. flowers of Solidago canadensis, photographer: Diethart, B.
  3. pollen grain with vegetative nucleus (left) and two sperm cells - fresh, aceto-carmine, photographer: Diethart, B.
  4. upper focus - fresh, acetolyzed, photographer: Diethart, B.
  5. optical section - fresh, acetolyzed, photographer: Diethart, B.
  6. lower focus - fresh, acetolyzed, photographer: Diethart, B.
  7. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  8. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  9. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  10. polar view - fresh, DMP & critical point dried, photographer: Diethart, B.
  11. equatorial view - fresh, DMP & critical point dried, photographer: Diethart, B.
  12. aperture - fresh, DMP & critical point dried, photographer: Diethart, B.
  13. detail of aperture - fresh, DMP & critical point dried, photographer: Diethart, B.
  14. exine surface - fresh, DMP & critical point dried, photographer: Diethart, B.
  15. dry pollen grains - dry, photographer: Diethart, B.
  16. dry pollen grain - dry, photographer: Diethart, B.
  17. pollen grain in cross section, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  18. interapertural area of pollen wall, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  19. apertural area of pollen wall, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  20. pollen wall at transition of aperture and interapertural area, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.

Literature

  • Blackmore S, Van HH, Punt W (1984) On the terminology, origins and functions of caveate pollen in Compositae. Rev Palaeobot Palynol 43: 293-301
  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180

Copyright and Citation

Cite this publication as:

Diethart B., Heigl H. 2020. Solidago canadensis. In: PalDat - A palynological database. https://www.paldat.org/pub/Solidago_canadensis/304601;jsessionid=B69F86269DA3F15F1752BF23A82D8B3F; accessed 2025-05-01

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