Relatives

The area of Common St. John's wort (Hypericum perforatum L.)

Object description Download GIS-layers

Authors:

The expert-botanist - Chuhina I.G., the GIS-Expert - Suzanskaja E.I.

Date of creation:

09.12.2003

Scale:

1:20 000 000.

Accuracy of a map:

Map is based on data from herbarium specimans and on maps having the following scale: 1:13 000 000 - 1:17 000 000.

The projection:

"Alber's Equal Area Conic for Russia", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

Map is a vector file consisting of polygons and points. Locations of species are represented by points, areas of possible distribution of species are represented by polygons.

Accuracy of the qualifier:

Points represent locations of the species referenced in literature sources. Polygons are based on generalized information from literature sources.

Method of map contruction:

Species location data were obtained from

Sources of the data:

Atlas of medicinal plant habitats and resources in the USSR. 1983. Moscow, p.38 (in Russian).
Grossgeim, A.A. 1962. Flora of the Caucasus, vol. 6. Moscow/Leningrad: Publishing House of the USSR Academy of Sciences, Map #194 (in Russian).

Right and copyright:

Copyright on this map and description belongs to its authors;
copyright for picture belongs to Chuhina I.G.