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an online publication on recent pollen

Siderasis fuscata

Taxonomy: Angiospermae, Commelinales, Commelinaceae, Siderasis

Published: 2016-11-29

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): -,  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: sulcate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: elliptic,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): boat-shaped,  outline in polar view (dry pollen): -,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 1,  aperture type: sulcus,  aperture condition: sulcate,  aperture peculiarities: aperture membrane ornamented

Ornamentation and Structure

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

Miscellaneous

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

Annotations: size: medium to large

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

aspect of Siderasis fuscata

1. aspect of Siderasis fuscata

flowers of Siderasis fuscata

2. flowers of Siderasis fuscata

polar distal view

3. polar distal view

polar proximal view

4. polar proximal view

equatorial view

5. equatorial view

sulcus border

6. sulcus border

detail of sulcus

7. detail of sulcus

exine surface

8. exine surface

dry pollen grains

9. dry pollen grains

Picture legend

  1. aspect of Siderasis fuscata, photographer: Buchner, R.
  2. flowers of Siderasis fuscata, photographer: Buchner, R.
  3. polar distal view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  4. polar proximal view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  5. equatorial view - fresh, DMP & critical point dried, photographer: Halbritter, H.
  6. sulcus border - fresh, DMP & critical point dried, photographer: Halbritter, H.
  7. detail of sulcus - fresh, DMP & critical point dried, photographer: Halbritter, H.
  8. exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
  9. dry pollen grains - dry, 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

Copyright and Citation

Cite this publication as:

Halbritter H., Buchner R. 2016. Siderasis fuscata. In: PalDat - A palynological database. https://www.paldat.org/pub/Siderasis_fuscata/302512;jsessionid=75B931E2992D69463E062DFA2C4E511C; accessed 2024-04-18

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