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Lentibulariaceae Utricularia Humboldtii. Lentibulariaceae Utricularia humboldtii From Annales de la Socit royale d'Agriculture et de Botanique de Gand Journal d'horticulture by Charles Morren ed Gent Local de la Socit Casino etc volume plate Handcoloured lithograph sheet mm Text enclosed Belgian horticultural journal published