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an online publication on recent pollen

Primula denticulata

Taxonomy: Angiospermae, Ericales, Primulaceae, Primula

Published: 2021-06-23

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): 11-15 µm, 16-20 µm,  shortest polar axis in equatorial view (LM): 11-15 µm,  longest polar axis in equatorial view (LM): -,  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: oblate,  shape: -,  outline in polar view: triangular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): oblate,  shape (dry pollen): -,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, syncolpate,  aperture peculiarities: synaperturate

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate,  suprasculpture SEM: -,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie; Auer, Waltraud

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

equatorial view

6. equatorial view

aperture

7. aperture

exine surface

8. exine surface

polar area

9. polar area

dry pollen grains

10. dry pollen grains

Picture legend

  1. flower(s), photographer: Halbritter, H.
  2. hydrated Pollen - fresh, glycerine, unstained, photographer: Auer, W.
  3. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  4. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  5. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

  • Bahadur B, Bangaru LS, Ramaswamy N (1984) Pollen morphology and heterostyly - a systematic and critical account. Adv Pollen - Spore Res 12: 79-126
  • Bahadur B, Swamy NR (1993) Pollen exine dimorphism in ten heterostylous species. J Palynol 29: 77-88
  • Dahlgren KVO (1916) Zytologische und embryologische Studien über die Reihen Primulales und Plumbaginales. Kungl Svenska Veten Handl 56: 1-80
  • Filina NN, Permjakov AI (1970) Morphologie des grains de pollen de quelques Myrtaceae et Primulaceae. Vest mosk Univ 6 25: 47-52
  • Kao MT, De VCE (1970) The Primulaceae of Taiwan. Taiwania 15: 51-72
  • Pandey KK, Troughton JH (1974) Scanning electron microscopic observations of pollen grains and stigma in the self incompatible heteromorphic species Primula malacoides Franch. and Forsythia x intermedia Zab and genetics of sporopollenin deposition. Euphytica 23: 337-344
  • Piper J, Charlesworth B (1986) The evolution of distyly in Primula vulgaris. Biol J Linn Soc 29: 123-137
  • Punt W, De LVWJS, Van Oostrum WAP (1974) Primulaceae. Rev Palaeobot Palynol, NEPF 17: 31-70
  • Richards J (1993) Primula. Batsford Ltd, London : 299 pp
  • Spanowsky W (1962) Die Bedeutung der Pollenmorphologie für die Taxonomie der Primulaceae-Primuloideae. Feddes Rep 65: 149-214
  • Subramanyam K, Narayana LL (1968) Floral anatomy and embryology of Primula floribunda Wall. Phytomorphology 18: 105-113
  • Tarnavschi IT, Mitroiu N (1960) Considérations palynologiques sur les représentants de la famille des Primulacées de la flora Roumaine. Com Ac RPR 10: 111-118
  • Wendelbo P (1961) Studies in Primulaceae - II. An account of Primula subgenus Sphondylia with a review of the subdivisions of the genus. Ab Univ Bergen matnaturv Ser 11: 1-49
  • 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., Auer W. 2021. Primula denticulata. In: PalDat - A palynological database. https://www.paldat.org/pub/Primula_denticulata/306328;jsessionid=7C0C444B698BC59E0EBE882C984F53A7; accessed 2024-03-29

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