Clastoderma

Clastoderma is a genus of slime molds belonging to the order Physarales. These organisms are characterized by their small, spherical fruiting bodies, called sporangia, which are typically borne on slender stalks. The sporangia are often brightly colored, ranging from yellow to orange or red, and are covered in a lime-like crust. Inside the sporangia, spores are contained within a network of calcareous threads known as elaterids.

The plasmodium, the vegetative stage of Clastoderma, is a multinucleate mass of protoplasm that creeps along surfaces such as decaying wood, leaf litter, and soil. It feeds on bacteria, yeast, and other microorganisms. When conditions are favorable, the plasmodium differentiates to form the sporangia.

Clastoderma species are found worldwide, particularly in temperate and tropical regions. They are typically found in moist, shaded environments. While not of significant economic importance, Clastoderma species are of interest to mycologists and ecologists for their role in decomposition and as indicators of environmental conditions.

The genus Clastoderma currently contains a few recognized species, with Clastoderma luteum being one of the more commonly encountered. Identification of species often relies on microscopic examination of the sporangia, elaterids, and spores. Research into Clastoderma continues to explore their life cycles, ecological roles, and genetic diversity.