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Variation of seed morphology of Trollius europaeus L. and Trollius altissimus Crantz [Ranunculaceae]

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Antkowiak W., Maciejewska-Rutkowska I., Jagodzinski A. M., Kayzer D., Klimko M.
Acta Societatis Botanicorum Poloniae
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2010
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tom 79
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nr 2
117-123
The aim of this study was to investigate seed morphology and intra- and inter-population variation of seeds of Trollius europaeus L. and Trollius altissimus Crantz., two controversial species regarding their taxonomical position. We analyzed seed-coat microsculpture and some biometrical traits (length and width, width/length ratio, volume and projected perimeter). Seed sculpture did not differ between species, but seeds of T. altissimus were usually larger than seeds of T. europaeus. Although species differed significantly in seed morphology, it was possible to show the populations of both species that were similar regarding the analyzed seed traits. We noted a significant inter-population differentiation of seeds in both species with respect to seed-coat microornamentation and biometrical traits. We conclude that T. europaeus and T. altissimus are probably not two distinct species, but T. europaeus should be divided into two lower taxa in the rank of variety or subspecies.
2

The impact of extensive sheep grazing on the population and individual traits of Trollius altissimus Crantz

84%
Kostrakiewicz-Gieralt K., Kozak M., Kozlowska-Kozak K.
Polish Journal of Ecology
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2015
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tom 63
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nr 4
The montane glades in the Polish Carpathians were created centuries ago and have lasted mainly as a result of mowing and grazing. The observed abandonment of traditional methods of tillage in the last century led to adverse changes in vegetation cover, including a decrease in floristic diversity and the disappearance of many plant species and associations. One of a rare mountain taxa in Poland is the alpine globeflower Trollius altissimus Crantz. The investigations were carried out between June and September 2014 in the Hala Długa glade (Gorce Mts.) at two 36 m² plots: extensively grazed (P1) and unmanaged (P2). Light intensity, abundance and density of individuals and ramet clusters were significantly greater in the extensively grazed plot, whereas height of plant canopy, length of basal leaf petioles, width of leaf lamina, number and length of generative stems, number of flowers and follicles achieved higher values in the unmanaged plot. The structure of developmental stages and number of basal leaves did not differ remarkably between the studied sites. Also, the soil properties in both plots were very similar. The studies show that extensive sheep grazing has a positive influence on Trollius altissimus. In the studied locality such management contributes to the gradual spreading of this species. However, too intensive pasturage might eliminate this species as it has never been observed in any of the permanently grazed patches in the vicinity.
3

Pelniki - byliny pylkodajne do nasadzen rabatowych

84%
Denisow B.
Pszczelarstwo
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2005
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tom 56
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nr 03
14-15
4

Chemical composition and morphology of basal leaves of Trollius europaeus L. and T. altissimus Crantz [Ranunculaceae]

84%
Maciejewska-Rutkowska I., Antkowiak W., Jagodzinski A. M., Bylka W., Witkowska-Banaszczak E.
Polish Journal of Environmental Studies
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2007
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tom 16
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nr 4
595-605
We studied characteristics of basal leaves of Trollius europaeus L. and T. altissimus Crantz, including blade morphology, phenolic acids and flavonoids. We also verified the influence of site conditions on leaf structure. co-chromatography showed mostly quantitative differences in the contents of particular phenolic acids and flavonoids in leaves. Similarly, there were no important morphological differences between the species and with respect to some traits a significant distinction appeared within T. altissimus populations. Additionally, site conditions had an effect on leaf morphology of both examined species. Therefore, based on our results, the separation of two Trollius species is questionable. The study supported the statement that T. europaeus and T. altissimus are not separated species, thus T. europaeus should be divided into two lower taxa in the rank of variety or subspecies.
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