@article {7557,
	title = {Fallopia x bohemica est beaucoup plus r{\'e}pandu que F. sachalinensis dans la r{\'e}gion de Bruxelles},
	journal = {Dumortiera},
	volume = {92},
	year = {2007},
	month = {2007///},
	pages = {22 - 24},
	abstract = {Fallopia x bohemica is much more common than F. sachalinensis in the Brussels area. Fallopia x bohemica has often been confounded with F. sachalinensis in the Brussels area and, accordingly, the latter is much less common than previously thought.},
	author = {Meerts, Pierre and Ti{\'e}br{\'e}, M.-S.}
}
@article {dum3386,
	title = {Nieuwe groeiplaatsen en uitbreiding van Orobanche purpurea in het noorden van Vlaams-Brabant},
	journal = {Dumortiera},
	volume = {91},
	year = {2007},
	month = {05/2007},
	pages = {22-24},
	chapter = {22},
	abstract = {New localities and extension of Orobanche purpurea in the northern part of Vlaams-Brabant. In 2006 two new inland locations of the rare Orobanche purpurea were found on roadsides to the north of Brussels. Another population, known at a traffic junction since 1978, has increased in size significantly.},
	author = {Anne Ronse and Herman Dierickx}
}
@article {dum3385,
	title = {Herkenning van de vier in Belgi{\"e} voorkomende drijvende Lemna-soorten},
	journal = {Dumortiera},
	volume = {91},
	year = {2007},
	month = {5/2007},
	pages = {16-20},
	chapter = {16},
	abstract = {Identification of floating Lemna species in Belgium. Due to a newly found Lemna, Lemna turionifera, in Belgium we had a closer look at the different species of Lemna that float on the water{\textquoteright}s surface (Lemna gibba, L. minor, L. turionifera and L. minuta). The determination of those species can be difficult. This article aims to remove some of the problems in identification by presenting techniques that highlight more visible characteristics.},
	author = {Wouter Van Landuyt}
}
@article {dum3384,
	title = {Exotische muurvarens in Belgi{\"e} en Nederland},
	journal = {Dumortiera},
	volume = {92},
	year = {2007},
	pages = {1-16},
	chapter = {1},
	abstract = {Exotic mural ferns in Belgium and the Netherlands. In recent years an increasing number of exotic mural ferns have been recorded in urban areas of Belgium and the Netherlands. Without exception, these plants have escaped from cultivated individuals of which tender taxa bave profited by microclimate and environmental conditions present in larger cities ({\textquoteright}heat islands{\textquoteright}). The present paper deals with recent records of Adiantum capillus-veneris, A. diaphanum and A. raddianum, Cyrtominm falcatum and C, fortunei, Dryopteris cycadina, Polystichum tsus-simense, Pteris cretica s.l. and P. multiflda. Most of these taxa are (very) frost-sensitive and their appearance may be temporary (Cyrtomium falcatum in the Netherlands excepted). Identification keys, photographs, original line drawings and herbarium scans are presented here for most of the escaped species to facilitate identification. In addition, distributional records and ecological comments are provided and reasons why the sudden increase in occurrence of exotic ferns in urban areas discussed.},
	author = {Filip Verloove and Raymond van de Ham and Ton Denters}
}
@article {119,
	title = {Fallopia x bohemica est beaucoup plus r{\'e}pandu que F. sachalinensis dans la r{\'e}gion de Bruxelles},
	journal = {Dumortiera},
	volume = {92},
	year = {2007},
	pages = {22-24},
	chapter = {22},
	abstract = {Fallopia x bohemica is much more common than F. sachalinensis in the Brussels area. Fallopia x bohemica has often been confounded with F. sachalinensis in the Brussels area and, accordingly, the latter is much less common than previously thought.},
	author = {Pierre Meerts and M.-S. Ti{\'e}br{\'e}}
}
