A revision of distribution and historical analysis of preferred hosts of Orobanche ramosa (Orobanchaceae) in Poland

The Polish localities of Orobanche ramosa L., branched broomrape, are either extinct or have not been confirmed for many years. This paper presents two new localities of O. ramosa in Poland from the Płaskowyż Proszowicki plateau (Wyżyna Małopolska upland) and the Nizina Nadwiślańska lowland (Kotlina Sandomierska basin). Habitat preferences and the abundance at the sites are described. A revised map of the distribution and a historical analysis of preferred hosts in Poland are included. The taxonomy, biology, ecology and control methods of O. ramosa are also discussed

Orobanche caryophyllacea Sm. (Orobanchaceae) in Poland: current distribution, taxonomy, plant communities and hosts

The paper presents the current distribution of Orobanche caryophyllacea Sm. in Poland based on a critical revision of herbarium and literature data as well as the results of my field studies. The majority of localities are in south and south-eastern Poland: Małopolska Upland, Lublin Upland, Roztocze, Przemyśl Foothills, Pieniny Mts, rarely in the valleys of the Lower Vistula and Oder rivers or Wolin island. The distribution map in Poland is included. The taxonomy, biology and ecology of the species are discussed

Pollen morphology of the Central European broomrapes (Orobanchaceae: Orobanche, Phelipanche and Orobanchella) and its taxonomical implications

Pollen grains of 450 samples of 25 species of the genus Orobanche and Phelipanche occurring in Central Europe were investigated using light and scanning electron microscopy. Palynological data on 18 species are reported here for the first time. The usefulness of micromorphological studies on pollen of Orobanche and Phelipanche is demonstrated. Previous research showed the separation of Phelipanche from Orobanche, a finding which is also supported by pollen aperture type and exine ornamentation. The pollen of Phelipanche is tricolpate, while that of Orobanche is inaperturate. Our research showed that one of the species included so far within Orobanche, namely O. coerulescens, has tricolpate pollen with microreticulate sculpture. As a consequence of the finding of tricolpate pollen and intermediate macromorphological characteristics of this species between Orobanche and Phelipanche, it is proposed to transfer it to a new genus, Orobanchella, described in the paper. A comparison of the main characteristics distinguishing Orobanche, Phelipanche, Boulardia and Orobanchella is also presented and discussed

A revision of distribution and the ecological description of Orobanche picridis (Orobanchaceae) at the NE limit of its geographical range from Poland and Ukraine

The paper presents the current distribution of Orobanche picridis in Poland and Ukraine, within the Polish borders in the interwar period, based on a critical revision of herbarium and literature data as well as the results of my field studies. The largest number of its localities is in S and SE Poland in the Wyżyna Śląsko-Krakowska, Wyżyna Małopolska, Wyżyna Lubelska uplands, Middle Roztocze, Small Polesie, the Pogórze Przemyskie foreland and in the former Tarnopol province (W Ukraine). These are the north-easternmost sites known for the species and extend its limit range. A map of its distribution in Poland and Ukraine is included. The taxonomy, biology, and ecology of O. picridis are also discussed

First Report of Smynthurodes betae (Hemiptera: Aphididae) on Phelipanche ramosa (Orobanchaceae)

The bean root aphid, Smynthurodes betae Westwood (Aphididae: Eriosomatinae: Fordini) is reported for the first time feeding on haustoria of branched broomrape, Phelipanche ramosa, (Orobanchaceae) a cropparasitic plant. Field surveys conducted in Poland revealed infestations of P. ramosa by nymphs and adult apterous females of a secondary-host generation of S. betae in 1 locality in Sandomierz County, near Szewce, Poland. Numerous nymphs of S. betae fed on broomrape sap, resulting in poor growth or dead shoots, and 10 to 20% of the total population of broomrape was infested. Potential use of this insect as a biological control method for invasive broomrapes requires further study

The distribution and habitat preferences of the declining species Orobanche arenaria Borkh at the northern limit of its geographical range

Three new sites of Orobanche arenaria were discovered during floristic investigations in the Wyżyna Małopolska upland in central Poland. The new localities are concentrated in the Ponidzie area (Garb Pińczowski ridge and Niecka Połaniecka basin) and form the northern limit of the geographical range of O. arenaria. The paper presents information on the distribution of Orobanche arenaria in Poland, the abundance at the sites and habitats occupied by the species

The distribution and habitat requirements of the genus Orobanche L. (Orobanchaceae) in SE Poland

The distribution of the genus Orobanche in SE Poland is presented. The study area stretches between the Vistula and the Bug rivers, and comprises the Polish areas of the Lublin-Lwów Upland, the Wołyń Upland and the southern part of Polesie. Eight species of the genus Orobanche: O. alba, O. alsatica, O. arenaria, O. caryophyllacea, O. elatior, O. lutea, O. pallidiflora, O. picridis, were collected during floristic investigations conducted between 1999 and 2010. The hosts, abundance and habitat preferences at the localities are given and a supplemented map of the distribution in SE Poland is included

The distribution and habitat requirements of the genus Orobanche L. (Orobanchaceae) in SE Poland

The distribution of the genus Orobanche in SE Poland is presented. The study area stretches between the Vistula and the Bug rivers, and comprises the Polish areas of the Lublin-Lwów Upland, the Wołyń Upland and the southern part of Polesie. Eight species of the genus Orobanche: O. alba, O. alsatica, O. arenaria, O. caryophyllacea, O. elatior, O. lutea, O. pallidiflora, O. picridis, were collected during floristic investigations conducted between 1999 and 2010. The hosts, abundance and habitat preferences at the localities are given and a supplemented map of the distribution in SE Poland is included