Sphaerobolus stellatus

Overview

Sphaerobolus stellatus produces minute fruiting bodies that open into cups. Michigan State’s diagnostic account describes an approximately two-millimetre body carrying a single round spore mass about one millimetre across. That packet is discharged towards strong light and adheres where it lands. The mechanism disperses a mass of spores, not a visible mushroom cap or a collection of separate eggs.

Penn State’s account of turf research identifies this basidiomycete through morphological comparison, chemical work and DNA sequencing. Infected turf samples showed reduced thatch depth and organic matter relative to controls. Wood decomposition and a particular turf disease context are both reported, but the study does not establish that every occurrence damages living plants or that one treatment solves the problem.

A molecular study of twenty-seven Sphaerobolus isolates recovered three strongly separated lineages, corresponding to S. stellatus, S. iowensis and an undescribed species. General artillery-fungus morphology therefore cannot certify species identity by itself. This profile uses S. stellatus as identified in the cited studies, while an eventual illustration would explain the recorded fruiting form and dispersal system rather than substitute for microscopy or molecular identification.

Origins & earliest records

Extant fungus; selected molecular work addresses species boundaries, not a complete evolutionary history.

Evidence & interpretation

Selected retained scientific and institutional passages.

Selected bibliography

Documented works and useful reading. This is not a list of every appearance.

1. 01

   Artillery fungus diagnosis

   Michigan State University

2. 02

   Mulch fungus and thatch collapse

   Penn State University

3. 03

   Sphaerobolus species lineages

   2005 Molecular Phylogenetics and Evolution study

Family & connections

A source-supported family tree or inspiration record has not yet been compiled for this profile. Related reading below indicates a connection in subject matter, not a proven lineage or creative influence.

References

Sources supporting this profile. Linked pages have their own scope and editorial standards.

1. University diagnostic accountArtillery fungus diagnosisResearch access: 2026-10-11
2. University research reportMulch fungus and thatch collapseResearch access: 2026-10-11
3. Primary molecular study; retained indexed abstractSphaerobolus species lineagesResearch access: 2026-10-11

Image credits

Modern AI interpretation of an artillery-fungus fruiting cup.

Modern AI scientific interpretation of a minute fruiting cup; not molecular species identification.