Actaea spicata
Taxonomy: Angiospermae, Ranunculales, Ranunculaceae, Actaea
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Actaea-spicata.htm
Published: 2020-11-11
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): 26-30 µm, shortest polar axis in equatorial view (LM): 21-25 µm, longest polar axis in equatorial view (LM): 26-30 µm, shortest diameter in equatorial or polar view (LM): 26-30 µm, longest diameter in equatorial or polar view (LM): 26-30 µm, pollen class: colpate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colpus, aperture condition: colpate, tricolpate, aperture peculiarities: aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: scabrate, gemmate, verrucate, nexine: -, sexine: -, SEM ornamentation SEM: microechinate, perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: starch, lipids, cell number: 2-celled, Ubisch bodies: present
Author(s) of diagnosis: Oberschneider, Wolfgang; Auer, Waltraud
Pictures
1. flower(s)
2. upper focus
3. optical section
4. lower focus
5. generative cell (dark) and vegetative nucleus
6. hydrated Pollen
7. hydrated Pollen
8. hydrated Pollen
9. polar view
10. equatorial view
11. detail of aperture
12. exine surface
13. polar view of dry pollen grain
14. dry pollen grain in equatorial view
15. pollen wall (interapertural area)
16. aperture with ornamented colpus membrane
17. pollen wall (left) and tapetum wall with Ubisch bodies (right)
Picture legend
- flower(s), photographer: Oberschneider, W.
- upper focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
- optical section - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
- lower focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
- generative cell (dark) and vegetative nucleus - fresh, unfixed, aceto-carmine, photographer: Oberschneider, W.
- hydrated Pollen - fresh, glycerine, unstained, photographer: Auer, W.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
- detail of aperture - fresh, critical point dried & rehydrated (water) & sputter coated with gold, photographer: Oberschneider, W.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
- polar view of dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Oberschneider, W.
- pollen wall (interapertural area) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.
- aperture with ornamented colpus membrane - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.
- pollen wall (left) and tapetum wall with Ubisch bodies (right) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.
Literature
- (1991) The Northwest European Pollen Flora, 51. Ranunculaceae. Rev Palaeobot Palynol 69: 117-271
- (1969) Zur Blütenmorphologie und Bestäubungsökologie einiger Ranunculaceen (Cimicifuga L., Actaea L., Thalictrum L.). Preslia 41: 213-219
- (1991) Palynotaxonomy and phylogeny of Ranunculaceae. Geophytology 21: 207-210
- (1978) On the palynomorphological types of the Armenian Rununculaceae. Biol Zh Armenii 31: 219-222, 5 pl
- (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
- (1981) Palynomorphological characteristics of the Bulgarian representatives of the family Ranunculaceae VII & VIII. Phytology (Bulg Acad Sci) 17: 3-32
- (1980) Palynomorphological characteristics of the Bulgarian representatives of the family Ranunculaceae Juss. IV. Phytology (Bulg Acad Sci) 14: 3-50
- (1962) Recherches palynologiques sur les Renonculacées de la R.P. Roumaine. In: Problème de Biologie. Edit Acad Rep Popul Romine : 79-122
- (1963) Studies of Indian pollen grains - II. Ranunculaceae. Pollen et Spores 5: 285-296
- (1993) A study on pollen and seed coat in the tribe Cimicifugeae and some allied genera (Ranunculaceae). Cathaya 5: 131-149
- (1936) Pollen grains in the identification and classification of plants - VII. Ranunculaceae. Bull Torrey Bot Club 63: 495-514
- (1994) Exkursionsflora von Österreich : 1180
- (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:
Oberschneider W., Auer W. 2020. Actaea spicata. In: PalDat - A palynological database. https://www.paldat.org/pub/Actaea_spicata/303857; accessed 2024-11-10