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Range of distribution of Hedgehog Clover (Trifolium echinatum M.Bieb.).

Object description Download GIS-layers

Authors:

The expert-botanists - N.I.Dzyubenko, E.A.Dzyubenko.
The GIS expert - A.N.Dzyubenko.

Date of creation:

17.03.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of a 1:13 000 000 scale map, specified according to herbarium materials.

Projection:

"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

The map is a vector file consisting of 1 basic and 2 subject layers. The species range is represented by polygons.

Accuracy of the qualifier:

The dots represent information on the species localities: 1 - reliable data from herbarium and published sources; the polygons (1) - generalized information on the species distribution from published sources and herbarium specimens.

Method of the map contruction:

The data from the herbarium materials of LE, a published map of a part of the species range (Grossheim, 1952), and published data (Bobrov, 1945, 1987) were used for constructing the range of Trifolium echinatum. The range consists of 2 polygons and is disjunctive. The main polygon takes the southers areas of the Caucasus, the southern border of the polygon going along the former state border of the USSR. The small area in the Crimea is situated also at the southern coast.

References:

Galushko AI. 1980. Flora of the North Caucasus: Handbook. V.2. 352 p. (In Russian).
Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.194-221. (In Russian).
Bobrov EG. 1987. Clover - Trifolium L. In: Fedorov AA., Tzvelev NN., eds. Flora of the European part of the USSR. V.6. P.195-208. (In Russian).
Bobrov EG. 1945. Clover - Trifolium L. In: Shishkin BK., ed. Flora URSS. V.11. P.189-261. (In Russian).
Herbarium specimens of V.L.Komarov Botanical Institute [LE], St.Petersburg, Russia.

Rights and copyrights:

The copyrights of the map and descriptions are held by their authors.
The copyright of the photo is held by E.A.Dzyubenko.