@book {8563,
	title = {The Goldenrods of Ontario: Solidago L. and Euthamia Nutt. (3 rd ed.)},
	year = {1999},
	month = {1999///},
	publisher = {Univ. Waterloo Biol. Ser. 39: VI},
	organization = {Univ. Waterloo Biol. Ser. 39: VI},
	author = {J.C. Semple and G.S. Ringius and J.J. Zhang}
}
@book {8540,
	title = {Elaeagnaceae},
	year = {1999},
	month = {1999///},
	pages = {152 - 158},
	publisher = {Kodansha, Tokyo},
	organization = {Kodansha, Tokyo},
	author = {H. Ohba}
}
@book {8552,
	title = {Polypogon viridis {\`a} la mare {\`a} Goriaux},
	year = {1999},
	month = {1999///},
	pages = {47 - 48},
	publisher = {Adoxa 24-25},
	organization = {Adoxa 24-25},
	author = {J. Duvigneaud and J. Saintenoy-Simon}
}
@book {8485,
	title = {Atlas Cotoneasters. Cotoneaster (Medic.) Bauhin},
	year = {1999},
	month = {1999///},
	publisher = {Kiev, House Orchard, Truck-Garden},
	organization = {Kiev, House Orchard, Truck-Garden},
	author = {A.T. Grevtsova}
}
@book {8493,
	title = {The genus Bromus L},
	year = {1999},
	month = {1999///},
	pages = {293 - 293},
	publisher = {(Poaceae) in the Iberian Peninsula},
	organization = {(Poaceae) in the Iberian Peninsula},
	author = {C. Acedo and F. Llamas}
}
@book {8609,
	title = {{\"O}kologie der gew{\"a}sserbegleitenden Agriophyten Angelica archangelica ssp. Litoralis, Bidens frondosa und Rorippa austriaca im Ruhrgebiet},
	year = {1999},
	month = {1999///},
	publisher = {Diss. Bot. 321},
	organization = {Diss. Bot. 321},
	author = {P. Keil}
}
@article {8476,
	title = {Impatiens parviflora D.C. (Balsaminaceae) als Neophyt in mitteleurop{\"a}ischen W{\"a}ldern und Forsten - eine bioz{\"o}nologische Analyse},
	journal = {Zeitschrift f{\"u}r {\"O}kologie und Naturschutz},
	volume = {7},
	year = {1999},
	month = {1999///},
	pages = {193 - 206},
	author = {G. Schmitz}
}
@book {8479,
	title = {Atlas Cotoneasters. Cotoneaster (Medic.) Bauhin},
	year = {1999},
	month = {1999///},
	publisher = {Kiev, House Orchard, Truck-Garden},
	organization = {Kiev, House Orchard, Truck-Garden},
	author = {A. Grevtsova}
}
@book {8508,
	title = {De surprise en surprise en parcourant l_ancien circuit automobile de Nivelles (F4.45)},
	year = {1999},
	month = {1999///},
	pages = {24 - 25},
	publisher = {Adoxa},
	organization = {Adoxa},
	author = {E. Henrion}
}
@article {8320,
	title = {ITS sequences and phylogenetic relationships in Bidens and Coreopsis (Asteraceae)},
	journal = {Syst. Bot},
	volume = {24},
	year = {1999},
	month = {1999///},
	pages = {480 - 493},
	author = {S.C. Kim and D.J. Crawford}
}
@article {8145,
	title = {Geographical differentiation of Rumex longifolius},
	journal = {Nordic J. Bot},
	volume = {19},
	year = {1999},
	month = {1999///},
	pages = {15 - 22},
	author = {C. Holm and H. Korpelainen}
}
@article {8125,
	title = {Lepidium heterophyllum Bentham, ein Neophyt atlantischer Herkunft im nordwestlichen Deutschland und in der Niederlande. Abhandl},
	journal = {Naturwissenschaftlichen Verein Bremen},
	volume = {44},
	year = {1999},
	month = {1999///},
	pages = {455 - 466},
	author = {E.J. Weeda}
}
@article {8139,
	title = {Corydalis: lark{\textquoteright}s flower ascending?},
	journal = {New Plantsman},
	volume = {6},
	year = {1999},
	month = {1999///},
	pages = {47 - 51},
	author = {Atkinson, R.}
}
@article {7993,
	title = {Revisi{\'o}n de las especies sudamericanas de Grindelia (Asteraceae, Astereae)},
	journal = {Kurtziana},
	volume = {27},
	year = {1999},
	month = {1999///},
	pages = {327 - 359},
	author = {A. Bartoli and R.D. Tortosa}
}
@article {8012,
	title = {De la d{\'e}couverte de Catalpa bignonioides Walter {\`a} l_{\'e}tat subspontan{\'e} en r{\'e}gion de Bruxelles-Capitale},
	journal = {Les Naturalistes Belges},
	volume = {80},
	year = {1999},
	month = {1999///},
	pages = {441 - 442},
	author = {D. Geerinck}
}
@article {8013,
	title = {Nomenclature of finger millet (Poaceae)},
	journal = {Lidia},
	volume = {4},
	year = {1999},
	month = {1999///},
	pages = {149 - 152},
	author = {K.A. Lye}
}
@article {7698,
	title = {Artemisia annua L. (Asteraceae) new for the Sicilian flora},
	journal = {Flora Medit},
	volume = {9},
	year = {1999},
	month = {1999///},
	pages = {277 - 280},
	author = {A. Cristaudo and R. Lo Giudice}
}
@article {7848,
	title = {Nogmaals Amaranthus hybridus L. (Groene amarant) en A. bouchonii Thell. (Franse amarant)},
	journal = {Gorteria},
	volume = {29},
	year = {1999},
	month = {1999///},
	pages = {31 - 33},
	author = {H. Duistermaat}
}
@article {7826,
	title = {Echinochloa microstachya subsp. microstachya (Poaceae) _ a new casual plant in the Polish flora. Fragm. Flor},
	journal = {Geobot., suppl},
	volume = {7},
	year = {1999},
	month = {1999///},
	pages = {165 - 177},
	author = {A. Pacyna}
}
@article {7827,
	title = {What is Cenchrus tribuloides (Poaceae) which appears on the Polish list of quarantine plants? Fragm. Flor},
	journal = {Geobot., suppl},
	volume = {7},
	year = {1999},
	month = {1999///},
	pages = {73 - 78},
	author = {J. Guzik and A. Pacyna}
}
@article {7802,
	title = {The Agropyron-Elymus complex (Poaceae) in Poland: nomenclatural problems},
	journal = {Fragm. Flor. Geobot},
	volume = {44},
	year = {1999},
	month = {1999///},
	pages = {3 - 33},
	author = {M. Mizianty and L. Frey and M. Szczepaniak}
}
@article {7806,
	title = {The Agropyron-Elymus complex (Poaceae) in Poland: the genus Agropyron.},
	journal = {Fragm. Flor. Geobot., suppl},
	volume = {7},
	year = {1999},
	month = {1999///},
	pages = {47 - 57},
	author = {M. Mizianty}
}
@article {7680,
	title = {Impatiens capensis Meerb. in der Urdenbacher Kampe - erster nachweis dieses springkrautes in NRW? Florist},
	journal = {Flor. Rundbr.},
	volume = {32},
	year = {1999},
	month = {1999///},
	pages = {123 - 125},
	author = {I. Knebel}
}
@article {7604,
	title = {Hydrocotyle ranunculoides L.f. (Grote waternavel), snel uitbreidend in de omgeving van Gent (Oost-Vlaanderen, Belgi{\"e})},
	journal = {Dumortiera},
	volume = {74},
	year = {1999},
	month = {1999///},
	pages = {16 - 20},
	abstract = {Hydrocotyle ranunculoides L. f., an invasive neophyte in the surroundings of Ghent (East-Flanders, Belgium). Hydrocotyle ranunculoides {\textemdash} a North American troublesome aquatic weed species {\textemdash} is rapidly spreading in ditches and small streams in the vicinity of Ghent. Obviously, the species has been introduced intentionally for horticultural purposes and for experimental waterpurification and escaped with rapidity ever since. Its actual distribution pattern is drawn, an identification key for the genus Hydrocotyle in Belgium is proposed and further ecologie and taxonomie notes are provided.Hydrocotyle ranunculoides L. f., n{\'e}ophyte envahissante dans les environs de Gand (Flandre-Orientale, Belgique). Hydrocotyle ranunculoides {\textemdash} mauvaise herbe aquatique de provenance am{\'e}ricaine {\textemdash} se r{\'e}pand tr{\`e}s rapidement dans les foss{\'e}s et les canaux de d{\'e}rivation aux alentours de Gand. Apparemment, l{\textquoteright}esp{\`e}ce {\`a} {\'e}t{\'e} introduit volontairement comme plante ornementale aquatique et pour des exp{\'e}riences d{\textquoteright}{\'e}puration d{\textquoteright}eau. Sa distribution locale est {\'e}tablie, une cl{\'e} pour le genre Hydrocotyle en Belgique est propos{\'e}e et des commentaires sur l{\textquoteright}{\'e}cologie et la taxonomie de [{\textquoteright}esp{\`e}ce sont fournis.},
	author = {Verloove, Filip and Heyneman, Geert}
}
@article {7458,
	title = {Eragrostis pilosa (L.) P. B. (Poaceae) in der Schweiz: Geschichte einer Wiedereroberung},
	journal = {Courier Forschungsinstitut Senckenberg},
	volume = {215},
	year = {1999},
	month = {1999///},
	pages = {171 - 176},
	author = {J. R{\"o}thlisberger}
}
@article {7204,
	title = {Anmerkungen zur Unterscheidung von Eragrostis multicaulis und Eragrostis pilosa},
	journal = {Botanik und Naturschutz in Hessen},
	volume = {11},
	year = {1999},
	month = {1999///},
	pages = {91 - 93},
	author = {G. H{\"u}gin}
}
@article {7216,
	title = {Salztolerante Pflanzen in Mittelwestfalen},
	journal = {Braunschw. Geobot. Arb.},
	volume = {6},
	year = {1999},
	month = {1999///},
	pages = {193 - 200},
	author = {D. B{\"u}scher}
}
@article {7165,
	title = {Sobre Ornithopus sativus Brot. (Leguminosae), en la Peninsula Iberica. An. Jard},
	journal = {Bot. Madrid},
	volume = {57},
	year = {1999},
	month = {1999///},
	pages = {226 - 227},
	author = {S. Talavera and M. Arista and P.L. Ortiz}
}
@article {7176,
	title = {Laugenblume Cotula coronopifolia - Erstnachweis f{\"u}r Mecklenburg-Vorpommern},
	journal = {Bot. Rundbr. Mecklenburg-Vorpommern},
	volume = {33},
	year = {1999},
	month = {1999///},
	pages = {129 - 130},
	author = {A. Mohr}
}
@article {7109,
	title = {Bromus optimae, a new annual brome-grass (Gramineae) from Cyprus},
	journal = {Bocconea},
	volume = {11},
	year = {1999},
	month = {1999///},
	pages = {85 - 87},
	author = {H. Scholz}
}
@article {6871,
	title = {Les excursions de l_A.E.F. en},
	journal = {Adoxa 24-25},
	volume = {1999},
	year = {1999},
	month = {1999///},
	pages = {19 - 39},
	author = {J. Saintenoy-Simon}
}
@article {6847,
	title = {Establishment of the invasive perennial herb Bunias orientalis L: an experimental approach},
	journal = {Acta Oecologica},
	volume = {20},
	year = {1999},
	month = {1999///},
	pages = {621 - 632},
	author = {H. Dietz and T. Steinlein and I. Ullmann}
}
@article {6928,
	title = {Revision of Berberis (Berberidaceae) in Chile and adjacent southern Argentina},
	journal = {Ann. Missouri Bot. Gard},
	volume = {86},
	year = {1999},
	month = {1999///},
	pages = {793 - 834},
	author = {L.R. Landrum}
}
@article {6937,
	title = {Excursion {\`a} Bois Laiterie},
	journal = {Annevoie-Rouillon et Houx. Adoxa},
	volume = {23},
	year = {1999},
	month = {1999///},
	pages = {13 - 19},
	author = {J. Saintenoy-Simon and J. Duvigneaud}
}
@article {6860,
	title = {L_extension de Dittrichia graveolens en Belgique et dans la R{\'e}gion Nord _ Pas-de-Calais},
	journal = {Adoxa},
	volume = {22},
	year = {1999},
	month = {1999///},
	pages = {7 - 10},
	author = {J. Duvigneaud and J. Saintenoy-Simon}
}
@article {6865,
	title = {Ecotopes du lit majeur de la Meuse wallone},
	journal = {Adoxa},
	volume = {23},
	year = {1999},
	month = {1999///},
	pages = {1 - 12},
	author = {J. Saintenoy-Simon}
}
@article {6828,
	title = {Zur Verbreitung von Lepidium virginicum L. in Niedersachsen und Bremen},
	journal = {Abh. Naturwiss. Ver. Bremen},
	volume = {44},
	year = {1999},
	month = {1999///},
	pages = {345 - 354},
	author = {J. Feder}
}
@article {atkinson_corydalis:_1999,
	title = {Corydalis: lark{\textquoteright}s flower ascending?},
	journal = {New Plantsman},
	volume = {6},
	number = {1},
	year = {1999},
	pages = {47{\textendash}51},
	author = {Atkinson, R.}
}
@article {164,
	title = {Hydrocotyle ranunculoides L.f. (Grote waternavel), snel uitbreidend in de omgeving van Gent (Oost-Vlaanderen, Belgi{\"e})},
	journal = {Dumortiera},
	volume = {74},
	year = {1999},
	pages = {16-20},
	chapter = {16},
	abstract = {Hydrocotyle ranunculoides L. f., an invasive neophyte in the surroundings of Ghent (East-Flanders, Belgium). Hydrocotyle ranunculoides {\textemdash} a North American troublesome aquatic weed species {\textemdash} is rapidly spreading in ditches and small streams in the vicinity of Ghent. Obviously, the species has been introduced intentionally for horticultural purposes and for experimental waterpurification and escaped with rapidity ever since. Its actual distribution pattern is drawn, an identification key for the genus Hydrocotyle in Belgium is proposed and further ecologie and taxonomie notes are provided.},
	author = {Filip Verloove and Geert Heyneman}
}
