Stinseplanten en de Nederlandse flora

„Stinse plants” are species (almost) exclusively limited in their distribution within a certain area to old countryseats („stinsen”) and related habitats as churchyards and old ramparts. Besides introduction by man also the specific habitat of these plants is an important factor: a fertile, moist and often calcareous soil, in the past manured and dug by man. Attention is paid to the natural habitats in Germany and France of stinse plants, especially Corydalis bulbosa. These habitats are dynamic environments such as the lower parts of slopes and along brooks in woods. Close to these places also anthropogenic habitats occur: in woods along arable land, on disturbed soil, in banks along a road, under hedges etc. Here the natural environmental dynamics are being substituted by anthropogenic dynamics. For the Netherlands various categories of these stinse plants are given: 1. Species limited (almost) exclusively to countryseats and related habitats in certain parts of the Netherlands, but growing elsewhere in this country in natural habitats. These species are called „local stinse plants”. 2. Species that are doubtfully native and only occur in countryseats etc. Their present-day distribution area borders the Netherlands, or this country lies within the distribution area but the species is extinct in the natural habitats. They are „Dutch stinse plants”, just as the categories 3 and 4. 3. Species with a natural distribution area (fairly) far from the Netherlands and introduced in former times by man. They hold stand for long times and can expand in the more natural habitats of countryseats etc. They are archeophytes or neophytes and belong to the Dutch flora. In this and the following category the species that are introduced in the Netherlands since the 18th century are indicated with an asterisk (*). The other species have been introduced and cultivated since earlier times (often since the 16th century and sometimes since the Middle Ages). 4. Species also with a natural distribution area (fairly) far from the Netherlands and introduced by man. These species can only grow in more cultivated circumstances in countryseats; they do not belong to the Dutch flora. Besides those categories there is a group of species growing abundantly in countryseats etc., but they also grow abundantly in other habitats in the Netherlands. They are no real „stinse plants” and they are no doubt native in this country.