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PalDat - Palynological Database

an online publication on recent pollen

Passiflora racemosa

Taxonomy: Angiospermae, Malpighiales, Passifloraceae, Passiflora

Published: 2020-10-05

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 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: porate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): spheroidal,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): not infolded,  aperture number: 3,  aperture type: ring-like aperture,  aperture condition: -,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

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

Miscellaneous

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

Annotations: apertural situation: 3 ring-like apertures or 3 large pores with opercula

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

flower(s)

1. flower(s)

flower(s)

2. flower(s)

flower(s)

3. flower(s)

hydrated pollen grains

4. hydrated pollen grains

polar view

5. polar view

equatorial view (oblique)

6. equatorial view (oblique)

detail of aperture

7. detail of aperture

exine surface

8. exine surface

detail of exine surface

9. detail of exine surface

polar area

10. polar area

dry pollen grains

11. dry pollen grains

Picture legend

  1. flower(s), photographer: Buchner, R.
  2. flower(s), photographer: Buchner, R.
  3. flower(s), photographer: Buchner, R.
  4. hydrated pollen grains - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. polar view - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. equatorial view (oblique) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. detail of aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. detail of exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. polar area - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  11. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

  • Amela GMT, Galati BG, Anton AM (2002) Microsporogenesis, microgametogenesis and pollen morphology of Passiflora spp. (Passifloraceae). Bot J Linn Soc 139: 383
  • Souza MM, Pereira TNS (2000) Development of pollen grain in yellow passion-fruit (Passiflora edulis f. flavicarpa; Passifloraceae). Genet Mol Biol 23: 469-473
  • 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., Buchner R. 2020. Passiflora racemosa. In: PalDat - A palynological database. https://www.paldat.org/pub/Passiflora_racemosa/305835;jsessionid=F494D5CAFCB284FDF58D7284C246CE4D; accessed 2020-10-26

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