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The genus Oenothera (Onagraceae) in Belgium
Journal Contribution - Journal Article
– The genus Oenothera (Onagraceae) was thoroughly and critically revised in
Belgium. This revision is based on the study of several hundreds of older and more recent herbarium specimens from all major public and some private herbaria as well as on additional fieldwork carried out since 2000. A brief history of the genus Oenothera in Belgium is provided. Difficulties with regard to taxonomy and nomenclature are discussed. The present treatment of Oenothera follows the ‘European school’ and is thus based on a narrow species concept for subsection Oenothera. In the present paper only species that have been
recorded since 1950 are dealt with. As such 27 species (including stabilized hybrids) have been upheld: Oenothera biennis, O. cambrica (with two varieties), O. canovirens, O. deflexa, O. depressa, O. ersteinensis, O. fallax, O. fruticosa subsp. glauca, O. glazioviana, O. hirsutissima, O. issleri, O. lindheimeri, O. nuda, O. oehlkersii, O. paradoxa, O. parviflora, O. pycnocarpa, O. rosea, O. royfraseri, O. rubricalyx, O. rubricaulis, O. rubricauloides, O. stricta, O. subterminalis, O. victorinii, O. villosa and O. wratislaviensis. Nine additional species were only recorded before 1950. Oenothera is represented in Belgium by the following
sections, subsections and series: sections Gaura, Hartmannia, Kneiffia and Oenothera, the latter furthermore represented by subsections Munzia, Oenothera (with the series Devriesia, Linderia, Oenothera and Rugglesia) and Raimannia. An identification key and photographs (mostly of typical and/or widespread species) are presented. Each species is concisely compared with related or similar species and its current distribution and naturalization status in
Belgium are assessed.
Belgium. This revision is based on the study of several hundreds of older and more recent herbarium specimens from all major public and some private herbaria as well as on additional fieldwork carried out since 2000. A brief history of the genus Oenothera in Belgium is provided. Difficulties with regard to taxonomy and nomenclature are discussed. The present treatment of Oenothera follows the ‘European school’ and is thus based on a narrow species concept for subsection Oenothera. In the present paper only species that have been
recorded since 1950 are dealt with. As such 27 species (including stabilized hybrids) have been upheld: Oenothera biennis, O. cambrica (with two varieties), O. canovirens, O. deflexa, O. depressa, O. ersteinensis, O. fallax, O. fruticosa subsp. glauca, O. glazioviana, O. hirsutissima, O. issleri, O. lindheimeri, O. nuda, O. oehlkersii, O. paradoxa, O. parviflora, O. pycnocarpa, O. rosea, O. royfraseri, O. rubricalyx, O. rubricaulis, O. rubricauloides, O. stricta, O. subterminalis, O. victorinii, O. villosa and O. wratislaviensis. Nine additional species were only recorded before 1950. Oenothera is represented in Belgium by the following
sections, subsections and series: sections Gaura, Hartmannia, Kneiffia and Oenothera, the latter furthermore represented by subsections Munzia, Oenothera (with the series Devriesia, Linderia, Oenothera and Rugglesia) and Raimannia. An identification key and photographs (mostly of typical and/or widespread species) are presented. Each species is concisely compared with related or similar species and its current distribution and naturalization status in
Belgium are assessed.
Journal: Dumortiera
ISSN: 0251-1134
Volume: 106
Pages: 12-42
Publication year:2015
Accessibility:Closed