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Range of distribution of Sulphur Clover (Trifolium ochroleucon Huds.).

Object description Download GIS-layers

Authors:

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

Date of creation:

17.06.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on 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 a polygon and dots.

Accuracy of the qualifier:

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

Method of the map construction:

The data from the herbarium materials of LE and WIR, published data (Bobrov, 1945, 1987), and the data of ILDIS World Database of Legumes (Roskov et al., 2005) were used for constructing the range of Trifolium ochroleucon. The species is restricted within Moldova, western and southern Ukraine, Crimea and Caucasus. The species range consists of one polygon and dots.

References:

Bobrov EG. 1945. Clover - Trifolium L. In: Shishkin BK., ed. Flora URSS. V.11. P.189-261. (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).
Roskov YR. et al. 2005. ILDIS World Database of Legumes. [Online] Available at: http://www.ildis.org/LegumeWeb?sciname=Trifolium%20ochroleucon .
Herbarium specimens of V.L.Komarov Botanical Institute [LE], N.I.Vavilov All-Russian Institute of Plant Industry [WIR] (all in 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.