Dusting slime mold
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Dusting slime mold ( Enteridium lycoperdon ) |
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| Scientific name | ||||||||||||
| Enteridium lycoperdon | ||||||||||||
| ( Bull. ) ML Farr |
The dusting slime mold ( Enteridium lycoperdon , Syn .: Reticularia lycoperdon ) is a slime mold from the Enteridiidae family .
features
Macroscopic features
The ethers are formed individually and reach a diameter between one and eight centimeters. They have a hemispherical to flattened shape. The surface is silvery shiny at first when it is still closed. Later it appears brown due to the spores. The membranous base ( hypothallus ) is white and surrounds the aethalia like a seam. The shell (cortex) is thick and white to light cream in color. It appears yellow in transmitted light.
The plasmodium is white.
- Different stages of development of the stump slime mold
Formation of the fruiting body
Fruiting bodies
Release of the spores
Fruit body almost disappeared
_M.L._Farr,_1976_(Reticularia_lycoperdon).JPG)
Microscopic features
The pseudo capillitium is brown in color and is covered with dark brown grains that are on average one to two micrometers in size. The tissue starts from the base of the aethalium and has a cylindrical to platy shape. It divides into fine hairs that are two to ten micrometers wide. They can branch and be fused with the cortex. The threads are covered with clumps of spores.
The spores are brown in bulk, light brown in transmitted light and have a rounded to frustoconical shape. They measure 7.5 to 10 micrometers in diameter and half to two thirds of them are covered with a fine-meshed net. On the rest of the surface there are scattered, pointed warts. Most of the time the spores are united to form clumps that are more or less firmly attached.
Species delimitation
The stubby slime mold is well characterized by the structure of the pseudo capillitium . The related species are much rarer. Enteridium olivacea has a darker cortex and olive-colored spore powder. Enteridium splendens has reddish-brown ethers and Enteridium intermedium smaller fruiting bodies and an early fading, transparent cortex. Lycogala flavofuscum , which is also often found on a vertical substrate, can be distinguished by the gray-brown colored spore powder.
ecology
The fruiting bodies can be found all year round, but especially in spring, on hardwood and softwood. The frequent growth on vertical trunks is characteristic of the dusty slime mold. Other large slime molds, on the other hand, usually grow on horizontally lying substrate. Socialization with other slime mold species was hardly observed. The fly Epicypta testata lives as a larva and as a nymph in the fruiting body and supports the spread of the spores.
distribution
The dusting slime mold is common worldwide. This slime mold is quite common in Central Europe.
Systematics
The var. Americanum can be found in America . She has free spores.
literature
- Hermann Neubert , Wolfgang Nowotny , Karlheinz Baumann : The myxomycetes of Germany and the neighboring alpine region with special consideration of Austria . tape 1 . Karlheinz Baumann Verlag, Gomaringen 1993, ISBN 3-929822-00-8 .
