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an online publication on recent pollen

Clerodendrum paniculatum

Taxonomy: Angiospermae, Lamiales, Lamiaceae, Clerodendrum

Published: 2016-11-08

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: colpate,  polarity: heteropolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): irregular,  outline in polar view (dry pollen): no suitable term,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 6,  aperture type: colpus,  aperture condition: colpate, hexacolpate,  aperture peculiarities: pantoaperturate

Ornamentation and Structure

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

Miscellaneous

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

Annotations: irregularities in aperture number and arrangement

Author(s) of diagnosis: Halbritter, Heidemarie; Weber, Martina

Pictures

flower(s)

1. flower(s)

flower(s)

2. flower(s)

hydrated pollen grain

3. hydrated pollen grain

hydrated pollen grain

4. hydrated pollen grain

hydrated pollen grain (apertures irregularly arranged)

5. hydrated pollen grain (apertures irregularly arranged)

aperture

6. aperture

detail of aperture

7. detail of aperture

exine surface

8. exine surface

dry pollen grains

9. dry pollen grains

Picture legend

  1. flower(s), photographer: Buchner, R.
  2. flower(s), photographer: Buchner, R.
  3. hydrated pollen grain - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. hydrated pollen grain - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. hydrated pollen grain (apertures irregularly arranged) - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. aperture - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. detail of aperture - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  8. exine surface - fresh, rehydration (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.

Literature

  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
  • Luque T, Candau P (1987) Acanthaceae, Geraniaceae, Globulariaceae, Lamiaceae, Oxalidaceae, Verbenaceae. In: Valdés B., Díez M.J., Fernández I. (eds) Atlas polínico de Andalucía occidental. Inst de Desarrollo Regional 43, Univ de Sevilla
  • Kuprianova LA, Alyoshina LA (1978) Pollen dicotyledonearum Florae Partis Europaeae USSR. Lamiaceae - Zygophyllaceae. Nauka, Akad Sci USSR, VL Komarov Inst Bot : 184 pp

Copyright and Citation

Cite this publication as:

Halbritter H., Weber M., Buchner R. 2016. Clerodendrum paniculatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Clerodendrum_paniculatum/302089;jsessionid=6A1F4AEB860C47CFB3DB892F53B15EAB; accessed 2021-09-23

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