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Comatricha nigra (nl - Langstelig kroeskopje )

Comatricha nigra (Pers. ex J.F. Gmel.) J. Schröt. 1886


Plasmodium translucent white. Sporocarps scattered or in small groups, up to 9 mm tall, though smaller and always ± spherical in moist-chambers. Stalk usually at least 66% of the total height, black, consisting of netted fibres at least at the base. Columella reaching at least half way up the sporotheca but usually almost reaching the apex, where it merges into the capillitium. Capillitium forming a dense internal flexuose net with the main branches connected to the columella along its whole length, often forming a surface net in the basal part, around the top usually with loops and free ends. Spores lilac-brown, with a small, pale, rounded germination pore, verruculose, 7.5-9.0 µm diam ( )


Members of this family typically have dark coloured spore mass. The typical type of fruiting body produced is a stalked sporangium. A capillitium is always present and many species have a prominent columella ( ) ---- dead wood


Taxonomic position: Kingdom: Myxobiontes Subkingdom: Myxomycetobionti Phylum: Physarophyles Class: Physariodes Order: Trichiales Family: Trichiaceae Species: Comatricha nigra --- ( ), ( ), ( ), ( ) -----all stages off developement: little white heads come out of the wood, get longer until tube-shape. Now a black thin stalk seems to push the white-tube from the wood.When the stalk is ready, the white-color , becomes pink,then cream,brown. meanwhile it changed the form a tube into a ball. When the transformation is ready, has the white tube changed into a shiny black perl/ball on a thin black stalk. Now in the last phase, become the spores ripe, and the shiny black pearl changed into a brown,powdery ball.

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Spotted by

Limburg, Netherlands

Spotted on Feb 25, 2012
Submitted on Feb 26, 2012

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