TY - JOUR T1 - Sedum sarmentosum, een verwilderde Aziaat op de Schelde-dijken JF - Dumortiera Y1 - 1996 A1 - Vanhecke, Leo SP - 8 EP - 8 VL - 63 ER - TY - JOUR T1 - Cardaminopsis halleri (L.) Hayek in de Hoge Venen te Malmedy JF - Dumortiera Y1 - 1996 A1 - Vannerom, Herman A1 - Jaeck, Herlinde De A1 - Pacquée, Kris SP - 3 EP - 3 VL - 66 ER - TY - JOUR T1 - Nieuwe en interessante voederadventieven voor de Belgische flora, hoofdzakelijk in 1995 JF - Dumortiera Y1 - 1996 A1 - Verloove, Filip A1 - Vandenberghe, Ceresa SP - 18 EP - 36 AB - New and interesting fodder aliens in Belgium, especially in 1995. The alien flora related to fodder importation in Belgium was followed again during 1995; this yielded several interesting annotations. Additions for the Belgian adventitious flora include Brassica loumefortii, Chamaesyce nutans, Digitaria violascens, Dinebra retroflexa, Echinochloa turnemna (a rare Australian casual), Hypecoumpendulum, Lycopersicon pimpinelHfoliuni, Passiflora eclulis (Passifloniceae, a new family for the Belgian flora) and Solarium chenopodioides (in the past probably overlooked for native S. nigrum). Other noteworthy records were e.g. Digitaria ciliaris, Eleusine tristachya, Physalis philadelphica, Roemeria hyhrida and Setaria parviflora. At present four separate regions of origin could be distinguished, each of them being related to a particular way of introduction: grain aliens originating chiefly in SW Asia and SE-Europe, soybean aliens of North American origin and oil seed casuals — particularly soybean and flaxseed aliens from South-America (especially Brasil). The unexpected occurence of Echinochloa turnemna suggests Australian grain importation in Belgium although former findings of Emex australis from the very same spot could have been referable to Australian import too. In 1995 no species of the South-African element were recorded. A provisional dichotomous key to the species of Chamaesyce (Euphorbiaceae) in Belgium is provided. Growing experiments with both soybean crush and flaxseed waste from the Americas revealed numerous interesting data on the Belgian fodder importation flora. On two places bird seed aliens were recorded.Adventices fourragères nouvelles et intéressantes de Belgique, surtout en 1995. Des nouvelles recherches sur la flore adventice fourragère ont fourni neuf taxons nouveaux pour le territoire belge, notamment Brassica tournefortii, Chamaesyce nutans, Digitaria violascens, Dinebra retroflexa, Echinochloa turnemna (adventice rare de provenance australienne), Hypecoum pendulum, Lycopersicon pimpinellifolium, Passiflora edulis (Passitloraceae, famille nouvelle pour la flore belge) et Solatium chenopodioides (probablement confondu avec S. nigrum autrefois). D'autres trouvailles remarquables incluent Digitaria ciliaris, Eleusine trlstachya, Physalis philadelphica, Roemeria hybrida et Setaria parviflora. En 1995 on peut distinguer quatre groupes d' adventices selon le pays d' origine et le mode d'introduction: les adventices grainières provenant essentiellement du SE de l'Europe et d' Asie Mineure, les adventices de soya d' origine nord-américaine et les adventices oléagineuses - particulièrement introduites avec du soya et du lin - de provenance sud-américaine (surtout du Brésil). La trouvaille inattendue de Echinochloa turnerana suggère 1' existence d'un élément australien en Belgique bien que des récoltes antérieures de Emex australis soient altribuables elles aussi à une importation australienne. En 1995 l'élément sud-africain manquait. Une clé dichotomique provisoire est proposée pour l'identification du genre Chamaesyce (Euphorbiaceae). Des expériences ont été effectuées avec des déchets de soya et du lin d'origine américaines. Des déchets résultants du nettoyage d'une volière ont produit en deux endroits des collections intéressantes d'adventices associées à des graines pour oiseaux. VL - 66 ER - TY - JOUR T1 - Een nieuwe groeiplaats van Ludwigia grandiflora (Michaux) Greuter et Burdet: een bedreiging voor de Blankaart? JF - Dumortiera Y1 - 1996 A1 - Demarest, L. SP - 7 EP - 7 VL - 63 ER - TY - JOUR T1 - Adventieve tropische varens in een kweekserre: industrieel fijn stof als een mogelijke dispersievector JF - Dumortiera Y1 - 1996 A1 - William White SP - 23 EP - 26 AB - Casual tropical ferns in a glasshouse: industrial dust as a potential dispersal agent. In 2005-2006, five exotic fern species (three of them not identified yet) new to Belgium and possibly to (continental) Europe, were discovered in a tomato glasshouse in Wachtebeke. These records clearly differ from other casual finds of exotic ferns, as they concern wild species, not escapes from cultivation. It seems plausible that spores have initially been introduced with ore and that afterwards the wind enabled spores to reach a glasshouse some three kilometres away from where the ore were stocked. VL - 96 ER - TY - JOUR T1 - Nieuwe en interessante voederadventieven voor de Belgische flora, hoofdzakelijk in 1995 JF - Dumortiera Y1 - 1996 A1 - Filip Verloove A1 - Ceresa Vandenberghe SP - 11 EP - 32 AB - New and interesting fodder aliens in Belgium, especially in 1995. The alien flora related to fodder importation in Belgium was followed again during 1995; this yielded several interesting annotations. Additions for the Belgian adventitious flora include Brassica loumefortii, Chamaesyce nutans, Digitaria violascens, Dinebra retroflexa, Echinochloa turnemna (a rare Australian casual), Hypecoumpendulum, Lycopersicon pimpinelHfoliuni, Passiflora eclulis (Passifloniceae, a new family for the Belgian flora) and Solarium chenopodioides (in the past probably overlooked for native S. nigrum). Other noteworthy records were e.g. Digitaria ciliaris, Eleusine tristachya, Physalis philadelphica, Roemeria hyhrida and Setaria parviflora. At present four separate regions of origin could be distinguished, each of them being related to a particular way of introduction: grain aliens originating chiefly in SW Asia and SE-Europe, soybean aliens of North American origin and oil seed casuals — particularly soybean and flaxseed aliens from South-America (especially Brasil). The unexpected occurence of Echinochloa turnemna suggests Australian grain importation in Belgium although former findings of Emex australis from the very same spot could have been referable to Australian import too. In 1995 no species of the South-African element were recorded. A provisional dichotomous key to the species of Chamaesyce (Euphorbiaceae) in Belgium is provided. Growing experiments with both soybean crush and flaxseed waste from the Americas revealed numerous interesting data on the Belgian fodder importation flora. On two places bird seed aliens were recorded. VL - 66 ER - TY - JOUR T1 - Cardaminopsis halleri (L.) Hayek in de Hoge Venen te Malmedy JF - Dumortiera Y1 - 1996 A1 - Herman Vannerom A1 - Herlinde De Jaeck A1 - Kris Pacquée SP - 3 VL - 66 ER - TY - JOUR T1 - Sedum sarmentosum, een verwilderde Aziaat op de Schelde-dijken JF - Dumortiera Y1 - 1996 A1 - Leo Vanhecke SP - 8 VL - 63 ER - TY - JOUR T1 - Een nieuwe groeiplaats van Ludwigia grandiflora (Michaux) Greuter et Burdet: een bedreiging voor de Blankaart? JF - Dumortiera Y1 - 1996 A1 - Demarest, L. SP - 7 VL - 63 ER -