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Psephellus marschallianus (≡ Centaurea marschalliana) is a rare species in the Bulgarian flora, attached to a specific habitat of subcontinental peripannonain shrub communities, and distributed in two floristic regions: Northeast Bulgaria and the Black Sea Coast (Northern). This study offers comments on the taxonomy of genus Psephellus, as well as...
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The taxonomy of the Centaurea stoebe complex is controversial. Diploid and tetraploid plants occur in its native European range, but to date only tetraploids have been recorded from its introduced range in North America. We examined morphological differentiation of C. stoebe using multivariate and univariate approaches to clarify the taxonomic stat...
Centaurea angelescui is reported for the first time to the Bulgarian flora. It was discovered in the valley of Rusenski Lom river, S of Basarbovo village, Ruse district (NE Bulgaria). Until now the species has been known from a few localities in the forest-steppe regions of SE Romania and SW Moldova. The article presents data on the taxonomy, morph...
Centaurea amaena Boiss. & Balansa included in the Phalolepis section of the Compositae (Asteraceae) family is an endemic species that is under critical risk of extinction. The morphological, anatomical, palynological, karyological and autecological features have been studied in this study. In accordance with the new observations, additional informa...
Chromosome number and nuclear DNA amount of Centaurea kilaea, an endemic species for Turkey, were studied by karyological and flow cytometrical analysis techniques. The somatic chromosome number of the species was counted as 2n = 4x = 36. Total 2n chromosome lengths were measured as 56.76 (±2.72) μm. For the flow cytometric analysis, nuclei were st...
Citations
... Wagenitz (Tasar et al. 2014), Ps. marschallianus (Spreng.) K. Koch (Bancheva 2008), Centaurea taochia (Sons.) Sons. ...
The chromosome numbers and karyotypes belonging to populations of Psephellus aucherianus complex were discussed by this paper. The chromosome numbers of all populations were determined as 2n=30. Karyomorphological results indicated that the populations of Ps. aucherianus complex display a broad variation and differ from each other in some aspects. Mainly, the karyotype formula could be evaluated as very specific and discriminative for each taxa, even their populations. Otherwise, the chromosomal indices indicated that all populations had largely symmetrical karyotypes and low chromosomal heterogeneity as a common chromosomal pattern within this complex. As a general result, we can infer that the species of these complex can be clearly characterized and separated according to karyomorphologic features and more importantly, chromosome pattern and rearrangements are very useful and informative to explain theirs evolutionary interactions as well changes.
... It is a heliophile, thermophile, xerophile species, which grows on soils rich in calcium carbonate and reduced content of humus (Dobrescu et Leocov, 1982). The area of spreading this species is in Bulgaria, Moldova, Romania, Russia and Ukraine (Bancheva, 2008). In Romania, the species is found only in some counties in the east and south-east of the country (Sârbu et al., 2013). ...
This paper underlines some aspects regarding the anthropic influence on the “Movila lui Burcel” protected area. There were done some periodical displacement and observations in the field (2012-2014); there were identified anthropic factors with negative influence on the protected area; there were described the effects of the action of these factors. The anthropic factors with negative influence identified on the territory of the protected area are: the existence of the plantations of black locust (
... General distribution: Bulgaria, Moldova, Romania, Russia and Ukraine (Bancheva, 2008). ...
... The Orthodox Church and other religious buildings raised up on the top of the "Movila lui Burcel" natural reserve 2009); Grajduri (Iaşi county)(Croci, 2009); Galaţi county: Pechea, Oancea, Chinejii basin, Roşcani, Băneasa, Vladeşti, Vaslui county: Băcani, Mânjeşti on Crasna hill, "Movila lui Burcel" reserve area, Satu Nou-Soleşti on Poştei hill, Bârlad on Dealul Mare, Mitoc, Iaşi county: Valea Lunga-Holboca, Suceava county: "Ponoare" reserve area, "Frumoasa" reserve area, Dragomirna, Constanţa county: Adamclisi, Tulcea county: Babadag plateau, Zebil, Măgurele, Slava Rusă(Oprea 2005).Important contributions:Bancheva (2008),Chifu el al (2006),Ciocarlan (2009), Dostál (1976,Klokov (1963),Korotchenko et al (2009), Oltean et al (1994,Oprea (2005),Prodan & Nyárády (1964), Sarbu et al (2007. ...
The aim of this study is to present the additional information on the taxonomy, biology,ecology of C. marschalliana in Romania and the population status from “Movila lui Burcel” naturalreserve. We present also the negative impact of religious buildings rised up inside this protected area.
