<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Pollen morphology of representatives of the genera <italic>Succisa</italic> and <italic>Succisella</italic> in the flora of Ukraine was studied using light and scanning electron microscopy. Pollen grains in both taxa were tricolpate, prolate, rarely oblate-spheroidal or spheroidal; large-sized. Their outline in polar view was subcircular, rarely trilobate, in equatorial view elliptical or rarely circular. Colpi short, of variable width, margins irregular with distinct, narrow margo, and blunt or acute ends. Exine sculpture was echinate-microechinate. The revealed characteristics of pollen grains are taxonomically significant at the generic and specific levels, and they can be used in pollen analysis. Palynomorphological data are consistent with the results of recent molecular phylogenetic studies. Data on pollen morphology also confirm taxonomic circumscription of Succiseae V. Mayer &amp; Ehrend. Pollen grains in Succiseae are characterized by a tricolpate aperture type, which was probably ancestral in Dipsacaceae s. str.</p></abstract>

Pollen morphology of representatives of the genera Succisa and Succisella in the flora of Ukraine was studied using light and scanning electron microscopy. Pollen grains in both taxa were tricolpate, prolate, rarely oblate-spheroidal or spheroidal; large-sized. Their outline in polar view was subcircular, rarely trilobate, in equatorial view elliptical or rarely circular. Colpi short, of variable width, margins irregular with distinct, narrow margo, and blunt or acute ends. Exine sculpture was echinate-microechinate. The revealed characteristics of pollen grains are taxonomically significant at the generic and specific levels, and they can be used in pollen analysis. Palynomorphological data are consistent with the results of recent molecular phylogenetic studies. Data on pollen morphology also confirm taxonomic circumscription of Succiseae V. Mayer & Ehrend. Pollen grains in Succiseae are characterized by a tricolpate aperture type, which was probably ancestral in Dipsacaceae s. str.

Taxonomic significance of pollen morphology in <italic>Succisa</italic> and <italic>Succisella</italic>

Department of Systematics and Floristics of Vascular Plants, M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine

Biodiversity Research and Conservation

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Taxonomic significance of pollen morphology in  and 

Pollen morphology of representatives of the genera Succisa and Succisella in the flora of Ukraine was studied using light and scanning electron microscopy....

Taxonomic significance of pollen morphology in Succisa and Succisella

Published Online: Feb 17, 2020

Page range: 1 - 6

Received: Apr 23, 2019

Accepted: Sep 30, 2019

DOI: https://doi.org/10.2478/biorc-2019-0010

Keywords
pollen grains, morphology, sculpture, diagnostic characters, taxonomy, Ukraine

© 2019 Zoya M. Tsymbalyuk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Taxonomic significance of pollen morphology in Succisa and Succisella

Published Online: Feb 17, 2020

Page range: 1 - 6

Received: Apr 23, 2019

Accepted: Sep 30, 2019

DOI: https://doi.org/10.2478/biorc-2019-0010

Keywordspollen grains, morphology, sculpture, diagnostic characters, taxonomy, Ukraine

© 2019 Zoya M. Tsymbalyuk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
pollen grains, morphology, sculpture, diagnostic characters, taxonomy, Ukraine