Cryptomeria japonica
Taxonomy: Gymnospermae, Pinales, Cupressaceae, Cryptomeria
Published: 2017-01-04
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): medium-sized (26-50 µm), pollen class: -, polarity: heteropolar, shape: spheroidal, outline in polar view: circular, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): irregularly infolded, aperture number: 1, aperture type: leptoma, aperture condition: -, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: microgemmate, granulate, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: papilla
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
- Annotations
exine ruptures near papilla when hydrated (before germination); protoplast with inner sporoderm layer becomes totally separated
Pictures
1. shoot with cone(s)
2. polar view (distal)
3. equatorial view
4. leptoma with papilla
5. papilla
6. exine surface
7. "empty exine" of a dehisced pollen grain
8. dry pollen grains
Picture legend
- shoot with cone(s), photographer: Halbritter, H.
- polar view (distal) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- leptoma with papilla - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- papilla - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- "empty exine" of a dehisced pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
Literature
- (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. 2017. Cryptomeria japonica. In: PalDat - A palynological database. https://www.paldat.org/pub/Cryptomeria_japonica/302909;jsessionid=C324778D37851897DDD7579A66FDF118; accessed 2020-05-26