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PalDat - Palynological Database

an online publication on recent pollen

Sherardia arvensis

Taxonomy: Angiospermae, Gentianales, Rubiaceae, Sherardia

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Sherardia-arvensis.htm

Published: 2020-12-15

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,  shortest polar axis in equatorial view (LM): 16-20 µm,  longest polar axis in equatorial view (LM): 21-25 µm,  shortest diameter in equatorial or polar view (LM): 21-25 µm,  longest diameter in equatorial or polar view (LM): 21-25 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: oblate,  shape: -,  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: >6,  aperture type: colpus,  aperture condition: colpate, stephanocolpate,  aperture peculiarities: stephanoaperturate

Ornamentation and Structure

LM  ornamentation LM: scabrate, gemmate, verrucate,  nexine: -,  sexine: -,  SEM  ornamentation SEM: rugulate, perforate, microechinate,  suprasculpture SEM: -,  TEM  tectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: -,  reserves in cytoplasm: -,  cell number: -,  Ubisch bodies: absent

Author(s) of diagnosis: Halbritter, Heidemarie; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

hydrated pollen

2. hydrated pollen

hydrated pollen

3. hydrated pollen

hydrated pollen

4. hydrated pollen

polar view

5. polar view

polar view

6. polar view

oblique view

7. oblique view

equatorial view

8. equatorial view

slightly oblique equatorial view

9. slightly oblique equatorial view

aperture

10. aperture

exine surface

11. exine surface

exine surface

12. exine surface

polar area

13. polar area

dry pollen grains (polar view)

14. dry pollen grains (polar view)

dry pollen grains (equatorial view)

15. dry pollen grains (equatorial view)

dry pollen grain in equatorial view

16. dry pollen grain in equatorial view

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  3. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  4. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  5. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. oblique view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. slightly oblique equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  12. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  14. dry pollen grains (polar view) - dry, sputter coated with gold, photographer: Halbritter, H.
  15. dry pollen grains (equatorial view) - dry, sputter coated with gold, photographer: Halbritter, H.
  16. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

  • Andrew R (1984) A practical pollen guide to the British flora. Quaternary Res Bull Technical Guide I: 1-139
  • Arreguin-Sánchez ML, Palacios-Chávez R, Quiroz-Gardia DL (1995) Morfologia de los granos de polen de la familia Rubiaceae del Valle de México. Phytologia 78: 361-380
  • Belmonte J, Pérez-Obiol R, Roure JM (1986) Claves para la determinación de los polenes de las principales especies melíferas de la Península Ibérica. Orsis 2: 27-54
  • Bertsch K (1942) Lehrbuch der Pollenanalyse. Handbücher der praktischen Vorgeschichtsforschung. Verlag Ferdinand Enke, Stuttgart 3: 195 pp
  • Diez MJ, Suarez R (1987) Fagaceae. In: Valdés B., Díez M.J., Fernández I. (eds) Atlas polínico de Andalucía occidental. Inst de Desarrollo Regional 43, Univ de Sevilla : 94-96
  • Dimbleby G (1967) Plants and Archaeology. John Baker, London : 187 pp
  • Edgeworth MP (1877) Pollen. Hardwicke & Bogue, London : 92 pp, 24 pl
  • Erdtman GEA (1963) An introduction to a scandinavian pollen flora - II. Almquist & Wiksell, Uppsala : 1-89
  • Fischer H (1890) Beiträge zur vergleichenden Morphologie der Pollenkörner. Breslau (Thesis) : 1-72
  • Heusser CJ (1971) Pollen and Spores of Chile. Univ Arizona Press, Tucson : 1-167
  • Mohl H (1834) Über den Bau und die Formen der Pollenkörner. Beiträge zur Anatomie und Physiologie der Gewächse. Erstes Heft. Bern 4: 130 pp, 6 pl
  • Mohl H (1835) Sur la structure et les formes des graines de pollen. Ann Sci Nat, Ser 2 3: 148-180, 220-236, 304-346
  • Moore PD, Webb JA (1978) An illustrated guide to pollen analysis. Hodder & Stoughton Ltd, Kent : 133 pp
  • Reille M (1992) Pollen et spores d'Europe et d'Afrique du Nord. Laboratoire de Botanique historique et Palynologie, Marseille : 520 pp, 446 pl
  • Tarnavschi IT, Serbanescu-Jitariu G, Mitroiu N, Radulescu D (1966) Studiul palinologic al representantilor ordinului Rubiales. Ann Univ Buc Ser Biol 15: 25-57
  • Van Campo M (1950) Recherches sur la phylogénie des Abiétinées d'après leurs grains de pollen. Trav Lab For Toulouse II: 1-182
  • Halbritter, H (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:

Halbritter H., Heigl H. 2020. Sherardia arvensis. In: PalDat - A palynological database. https://www.paldat.org/pub/Sherardia_arvensis/304356; accessed 2025-04-30

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