We documented stranding locations from locality descriptions from 1982 1999, afterwards using global positioning system coordinates.
We first removed duplicate records for the same species collected at the same site, and then assigned geographic coordinates based on textual locality descriptions (localities within 0.1° of one another were removed to reduce effects of spatial autocorrelation) using a combination of the Biogeomancer workbench [60] and the GeoLocate desktop program.
In cases where no precise coordinates were available, but the type-locality was described in some detail, coordinates were recovered using traditional and digital mapping procedures [17], by inspection of locality descriptions and available cartographic layers (e.g. river systems, roads, watersheds, topography, municipalities protected areas, see [21]).
Locality descriptions were derived from the labels on specimens examined in more than 50 herbaria (Additional file 1: Table S4).
Due to the vagaries and imprecision inherent in locality descriptions, the georeferenced point assigned to a locality is often only a rough approximation of a physical collecting site's geographical location.
The very sense, proclaimed in a prefatory note to Dart, that the poem visits known places attaches Oswald to a certain pastoral tradition, a poetry of locality and of natural description that remains appealing for the common reader.
Linnaeus did not mention a specific locality in his original description, giving only Eastern Asia as the area in which the species is found.
To clarify the taxonomic status of C. mariae and Cylindroleberis, specimens were obtained from near the type locality, and a supplementary description is presented.
Most of these records have precise geographical coordinates; however, a few records only have a general description of the locality.
For 21 recent records precise geographic coordinates were available, for the remainder a general description of the locality.
