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MELANELIYA SOREDIOZNAYA, ILI PARMELIYA SOREDIOZNY

Type: LICHENS (LICHENES)
Department: LICHENS (LICHENES)
Class: MARSUPIALS LICHENS (ASCOLICHENES)
Order: LEKANORALNYE (LECANORALES)
Family: PARMELIEVYE (PARMELIACEAE)

Look: MELANELIA SOREDIATA (ACH.) GOWARD & AHTI (= PARMELIA SOREDIOSA ALMB.)
         MELANELIYA SAREDYYOZNAYA, ABO PARMELIYA SAREDYYOZNY

Category of protection: 4



International importance:
It is included in the Red List of Belarus of the 2nd edition (1993).

Description:
Sloyevishche rozetkovidny, with a diameter of 3-4 cm, quite densely attached to a substratum, often merging with the next sloyevishcha. Blades are narrow, up to 0,5 mm wide, low-branchy, with sharp or roundish bosoms. The top surface of a sloyevishch brown-black or olive-brown, opaque or brilliant, with scattered white, more or less flat roundish soralyam; lower - black or black-brown, with short, scattered rubbers.

Rasprostraniyeniye:
Europe, Asia, North America, Greenland. Relic type of the Arctic period. In the republic is outside an area. The main locations are noted in northern part of the Vitebsk Region. (Vitebsk, Gluboksky, Lepelsky, Orshansky, Postavsky, Rossonsky, Sennensky and Ushachsky districts); it is known also in Grodno (Svislochsky district), Brest (the Kamenetsky district), Minsk (Krupsky, Logoysky, Minsk, Myadelsky and Stolbtsovsky districts) and Mogilev (Osipovichsky district) areas.

Habitats:
Grows on a siliceous stony substratum (granite alluvial boulders).

Biology:
Apotetion meet very seldom. Breeds mainly vegetativno (sorediya).

Number and tendency of its change:
Meets single sockets, forms a continuous cover less often.

Major factors of threat:
It is limited in the distribution because of rare occurrence of the main substratum - untouched superficial granite boulders, being ostanets of Ice Age. Destruction and movement of granite boulders leads to reduction of number of populations.

Protection measures:
It is protected together with geological nature sanctuaries of Belarus. Places of growth are in territories of the Berezinsky national biospheric park, national parks "Bialowieza Forest" and "Narochansky", wildlife areas "Osveysky" and "Long". Periodic control of a condition of the known populations and the organization of purposeful search new, prevention of destruction and movement of a substratum (granite boulders) are necessary.

Originators: V. V pigeons.