@article {dum3682,
	title = {CONTRIBUCI{\'O}N AL ESTUDIO DE LAS LEMN{\'A}CEAS DE HUELVA (ANDALUC{\'I}A OCCIDENTAL, ESPA{\~N}A)},
	journal = {Lagascalia},
	volume = {30},
	year = {2010},
	pages = {29-37},
	chapter = {29},
	abstract = {Summary. The main dimension of humid areas in Andalucia are present in Huelva province with 54.825 ha (77,39\%). This richness and diversity in aquatic environments make possible the location of numerous aquatic plants, and the conservation of emblematic wetlands as Parque Nacional de Do{\~n}ana, Paraje Natural Marismas del Odiel or Turberas de Las Madres. The distribution of 7 species of the Duckweed Family, present in the Huelva province (Occidental Andalusia, Spain), are studied. Lemna valdiviana Phil., an American species, is presented as a regional novelty for the Andalusian flora, and the known distribution of Wolffia arrhiza (L.) Horkel ex Wimm., Lemna trisulca L. and Spirodela polyrrhiza (L.) Schleind., 3 threatened species from Spain, is extended.},
	url = {http://institucional.us.es/revistas/revistas/lagascalia/pdf/numeros/30/Lagascalia\%2030-3.pdf},
	author = {E. S{\'a}nchez Gull{\'o}n and A. Gal{\'a}n de Mera}
}
@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 {dum194,
	title = {Arum italicum in de polders},
	journal = {Dumortiera},
	volume = {10},
	year = {1978},
	pages = {31},
	chapter = {31},
	author = {Leo Vanhecke and Jan Rammeloo}
}
