Cryptomeria japonica
Taxonomy: Gymnospermae, Pinales, Cupressaceae, Taxodioideae, Cryptomeria
Published: 2020-05-15
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: -, 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): irregular, infoldings (dry pollen): irregularly infolded, aperture number: 1, aperture type: leptoma, aperture condition: -, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: scabrate, nexine: present, sexine: present, SEM ornamentation SEM: microverrucate, fossulate, microechinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: granular, foot layer: continuous, endexine: lamellar-continuous, intine: -, wall peculiarities: papilla, adhering Ubisch bodies, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: present
Annotations: exine ruptures near papilla when hydrated (before germination); protoplast with inner sporoderm layer becomes totally separated; for illustrations of the pollen wall ultrastructure see Uehara & Sahashi (2000)
Author(s) of diagnosis: Halbritter, Heidemarie; Bouchal, Johannes Martin
Pictures
1. shoot with cone(s)
2. equatorial view
3. equatorial view
4. equatorial view
5. equatorial view
6. polar view
7. polar view (distal)
8. equatorial view
9. leptoma with papilla
10. papilla
11. exine surface
12. "empty exine" of a dehisced pollen grain
13. dry pollen grains
14. polar distal view
15. polar distal view, papilla, adhering Ubisch bodies
16. equatorial view, exine surface
Picture legend
- shoot with cone(s), photographer: Halbritter, H.
- equatorial view - dry, acetolyzed & rehydrated (water) & glycerine, unstained, photographer: Bouchal, J.
- equatorial view - dry, acetolyzed & rehydrated (water) & glycerine, unstained, photographer: Bouchal, J.
- equatorial view - dry, acetolyzed & rehydrated (water) & glycerine, unstained, photographer: Bouchal, J.
- equatorial view - dry, acetolyzed & rehydrated (water) & glycerine, unstained, photographer: Bouchal, J.
- polar view - dry, acetolyzed & glycerine, unstained, photographer: Bouchal, J.
- 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.
- polar distal view - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- polar distal view, papilla, adhering Ubisch bodies - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
- equatorial view, exine surface - dry, acetolyzed & sputter coated with gold, photographer: Bouchal, J.
Literature
- (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
- (1980) The ultrastructure of wall and tapetal membranes in Cryptomeria japonica D. Don Japanese Journal of Palynology 25: 21–31
- (2020) Low taxonomic resolution of papillate Cupressaceae pollen (former Taxodiaceae) impairs their applicability for palaeo-habitat reconstruction Grana 59
- (1988) The pollen of Taxodiaceae and its peculiarities Metsniereba
- (2000) Pollen wall development in Cryptomeria japonica (Taxodiaceae) Grana 39: 267–274
Copyright and Citation
Cite this publication as:
Halbritter H., Bouchal J. 2020. Cryptomeria japonica. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Cryptomeria_japonica/303639;jsessionid=E52D82C3E22116156889A5139D0A772F; accessed 2025-01-25