@article {dum199,
	title = {Donnees Concernant la Repartition de Bidens frondosa L. var. anomala Port, Ex Fern, (Asteraceae) en Belgique},
	journal = {Dumortiera},
	volume = {17},
	year = {1980},
	month = {12/1980},
	pages = {17-18},
	chapter = {17},
	abstract = {Bidens frondosa L. var. anomala PORT, ex FERN, is niet zeldzaam langs het kanaal van Charleroi-Brussel. Dezelfde vari{\"e}teit werd ook gevonden langs de Samber (Landelies, sluis n{\textdegree} 9) en de Maas (Lives-S/Meuse).},
	author = {Ch. Van Damme}
}
@article {dum197,
	title = {Bidens frondosa L. var.  anomala Port, Ex Fern. (Asteraceae) en Belgique},
	journal = {Dumortiera},
	volume = {16},
	year = {1980},
	month = {10/1980},
	pages = {13},
	chapter = {13},
	abstract = {Widens frondosa L. var. anomala PORT, ex FERN. (Asteraceae) in Belgi{\"e}. Dit voor Belgi{\"e} nieuwe taxon wordt gekenmerkt door opwaarts gerichte weerhaakjes op de naalden van de vruchtjes.},
	author = {Ch. Van Damme}
}
@article {dum196,
	title = {Centaurea solstitialis},
	journal = {Dumortiera},
	volume = {12},
	year = {1979},
	month = {03/1979},
	pages = {32},
	chapter = {32},
	author = {M. De Ridder}
}
@article {117,
	title = {Petasites japonicus en voie de naturalisation dans le sud de la province de Hainaut (Belgique)},
	journal = {Dumortiera},
	volume = {98},
	year = {2010},
	pages = {13-22},
	chapter = {13},
	abstract = {Petasites japonicus is naturalizing in the south of the province of Hainaut (Belgium). Petasites japonicus subsp. giganteus was discovered in a small waste ground (probably an old garden) along a former railway line at Sivry-Rance (Walloon province of Hainaut, Belgium). Only male plants were found. An identification key to the four species of the genus Petasites occurring in Belgium, phenological observations, a description of the habitat of this neophyte, and an overview of records in Belgium are provided. The mode of introduction and its status in Wallonia are discussed.},
	author = {Jean-Michel LECRON}
}
@article {97,
	title = {Floristische nota. Senecio squalidus L. ook in Belgi{\"e}},
	journal = {Dumortiera},
	volume = {3},
	year = {1975},
	pages = {31},
	chapter = {31},
	author = {D{\textquoteright}hose, R.}
}
