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PalDat - Palynological Database

an online publication on recent pollen

Nematanthus strigillosus

Taxonomy: Angiospermae, Lamiales, Gesneriaceae, Nematanthus

Published: 2016-11-03

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: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): oblate,  shape (dry pollen): -,  outline in polar view (dry pollen): triangular,  infoldings (dry pollen): no suitable term,  aperture number: 3,  aperture type: colpus,  aperture condition: tricolpate, colpate,  aperture peculiarities: margo, aperture membrane ornamented

Ornamentation and Structure

LM  ornamentation LM: -,  nexine: -,  sexine: -,  SEM  ornamentation SEM: perforate, foveolate,  suprasculpture SEM: -,  TEM  tectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: shape in hydrated condition: spheroidal to slightly oblate with indistinct triangular outline

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

aspect of Nematanthus strigillosus

1. aspect of Nematanthus strigillosus

flower of Nematanthus strigillosus

2. flower of Nematanthus strigillosus

hydrated pollen grains

3. hydrated pollen grains

polar view

4. polar view

equatorial view

5. equatorial view

oblique view

6. oblique view

aperture

7. aperture

exine surface

8. exine surface

exine surface

9. exine surface

polar area

10. polar area

dry pollen grains

11. dry pollen grains

Ubisch bodies on inner anther wall

12. Ubisch bodies on inner anther wall

Picture legend

  1. aspect of Nematanthus strigillosus, photographer: Buchner, R.
  2. flower of Nematanthus strigillosus, photographer: Buchner, R.
  3. hydrated pollen grains - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  4. polar view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  5. equatorial view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  6. oblique view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  7. aperture - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  8. exine surface - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  9. exine surface - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  10. polar area - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
  11. dry pollen grains - dry, photographer: Halbritter, H.
  12. Ubisch bodies on inner anther wall - fresh, rehydration (water) & DMP & critical point dried, 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. Nematanthus strigillosus. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Nematanthus_strigillosus/301873; accessed 2025-04-27

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