Lamproderma disseminatum described by Charles Meylan in 1970.
This is rare nivicolous species in small colonies, found at high altitude on debarked dead wood (Pinus cembra) on the ground. It’s determination is from specific dark brown nodulose or spiny capillitium.

Lamproderma disseminatum is a very rare species of nivicolous myxomycetes, which is directly affected by change of climate with, as consequence, a diminution of weeks during the substrate is covered by snow. The small colonies of this species found at high altitude on debarked dead wood (Pinus cembra) on the ground.
During the workshop at Ekenäs in Feb 2015, its present preliminary status was found to be DD.

ASIA: Russia (Tumen region)
EUROPE: Austria, France, Switzerland.
NORTH AMERICA: USA (California, Washington).

In total 12 records from 5 locality are known.
How many potential localities on a global/european scale? The substratum (Pinus cembra) is very common, but it is not usual substratum for others nivicolous species. May be this the reason why Lamproderma disseminatum is so rare species. Most of others nivicolous spesies from genus Lamproderma usualy are common.

This is rare nivicolous species in small colonies, found at high altitude on debarked dead wood (Pinus cembra) on the ground.
The nivicolous species of myxomycetes are organisms that belong to different genera sharing the same environmental conditions in their life cycle. These conditions can be found in the mountains, where, on the highest summits, the snow cover remains intact during the coldest months. In spring, with the increase of temperature, when thaw starts slowly, the sudden change from cold to warm favours the germination of the spores that have remained covered under the snow. Subsequently, the formation of plasmodia and fructifications over the vegetation that had remained under the snow occurs.

Probably threatened by climate change, as all nivicolous spesies. Nivicolous Myxomycetes is directly affected by change of climate with, as consequence, a diminution of weeks during the substrate is covered by snow.
Lamproderma disseminatum was founding in France (Savoie, Bourg-Saint-Maurice, Arc 2000), but in 2003 this locality destroed with build sky stations. Threats exploitation, loss of suitable microhabitat quality. NT D1.
Most appropriate evaluation may be DD (data deficient), that indicates that more data is needed.

Need to care about native microhabitats of Lamproderma disseminatum

Recearch about distribution.  It is need a good estimate of dark numbers of possible localities, total number of individuals on a global/european level.

MORENO G., SINGER H., ILLANA C. (2005) The nivicolous myxomycetes described by MARIANNE MEYER, MICHEL POULAIN and JEAN BOZONNET. Österr. Z. Pilzk. 14, p. 1-10
BOZONNET, J., MEYER, M., POULAIN, M., 1991: Especes nivales de Myxomycetes. - Soc. Hist. Nat. Pays Montbeliard: 51-72.
BOZONNET, J., MEYER, M., POULAIN, M., 1995: Les especes nivales du genre Lamproderma (Myxomycetes) ä peridium macule. - Doc. Mycol. 24(96): 1-8.
MEYER, M.,  NOWOTNY, W., POULAIN, M., 1994: Une espece nouvelle du genre Lamproderma ROST. (Myxomycetes). - Bull. Fed. Mycol. Dauphine-Savoie 33(132): 34-38.
LlZARRAGA, M., 2004: A taxonomic review on the nivicolous myxomycete species described by KOWALSKI. II. Physarales and Trichiales. -Österr. Z. Pilzk. 13: 61-74.
SINGER, H., MORENO, G., ILLANA, C, LlZARRAGA, M., 2005: Mountainous and nivicolous myxomycetes described by CHARLES MEYLAN. A SEM-study. - Österr. Z. Pilzk. 14: 11-29.
Lado, C. (2015): An on line nomenclatural information system of Eumycetozoa (2005-2015). Real Jardín Botánico, CSIC. Madrid, Spain. http://www.nomen.eumycetozoa.com.
Eumycetozoa. http://www.discoverlife.org/mp/20q?guide=Myxomycetes&flags=HAS:
Annotated Checklist for the Myxomycota of Germany. http://www.gbif-mycology.de/DatabaseClients/GBIFmyxchecklist/