Galium elongatum
Taxonomy: Angiospermae, Gentianales, Rubiaceae, Galium
Published: 2016-10-31
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): small (10-25 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: oblate, shape: -, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: >6, aperture type: colpus, aperture condition: colpate, stephanocolpate, aperture peculiarities: stephanoaperturate, aperture membrane ornamented
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: microechinate, perforate, suprasculpture SEM: -, TEM tectum: -, infratectum: -, foot layer: -, endexine: -, intine: -, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: -, reserves in cytoplasm: -, cell number: -, Ubisch bodies: -
Annotations: aperture number mostly 7
Author(s) of diagnosis: Halbritter, Heidemarie
Pictures
1. flowers of Galium elongatum
2. flowers of Galium elongatum
3. polar view
4. oblique view
5. aperture
6. exine surface
7. polar area
8. dry pollen grains
Picture legend
- flowers of Galium elongatum, photographer: Svojtka, M.
- flowers of Galium elongatum, photographer: Svojtka, M.
- polar view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- oblique view - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- aperture - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- exine surface - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- polar area - fresh, rehydration (water) & DMP & critical point dried, photographer: Halbritter, H.
- dry pollen grains - fresh, photographer: Halbritter, H.
Literature
- (1975) Morphologie, Biologie und Abgrenzung von Galium L. sect. Aparinoides (Jord.) Gren. (Rubiaceae). Beitr Biol Pflanzen 51: 17-40
- (1988) Formation of sperm cells in Galium mollugo (Rubiaceae), Trichodiadema setuliferum (Aizoaceae), and Avena sativa L. (Poaceae). Pl Syst Evol 161: 53-64
- (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., Svojtka M. 2016. Galium elongatum. In: PalDat - A palynological database. https://www.paldat.org/pub/Galium_elongatum/301826;jsessionid=50C5205A06759ACF06165746836704FC; accessed 2024-04-20