Claudio Contreras / Rounded earthstar mushroom (Geastrum saccatum), Lacandon Rainforest, Montes Azules Biosphere Reserve, southern Mexico, August

Claudio Contreras / Rounded earthstar mushroom (Geastrum saccatum), Lacandon Rainforest, Montes Azules Biosphere Reserve, southern Mexico, August

Paul Hobson / Collared earth star (Geastrum triplex), two on woodland floor. South Yorkshire, England, UK. September.

Adrian Davies / Earthstar fungus (Geastrum triplex) discharging spores following impact from water drop. England, UK, December.

Adrian Davies / Striated earthstar fungus (Geastrum striatum) under Conifers. Surrey, England, UK. November.

Adrian Davies / Earthstar (Geastrum britannicum) in an old graveyard, Surrey, UK. August 2017. Confirmed as new species in March 2015.

Adrian Davies / Earthstar fungus (Geastrum brittanicum) in old graveyard, Surrey, UK. August 2017.

Robert Thompson / Collared earthstar (Geastrum triplex) Tynan Estate, County Armagh, Northern Ireland. October.

Philippe Clement / Collared earthstar (Geastrum triplex) in autumn forest, Belgium, September

Philippe Clement / Immature fruit bodies of collared earthstar / saucered earthstar / triple earthstar (Geastrum triplex) in late summer, Belgium, September

Andy Sands / Sessile Earthstar fungus (Geastrum fimbriatum) in beech leaf litter, Buckinghamshire, England, UK, November - Focus Stacked Image

Andy Sands / Sessile earthstar fungus (Geastrum fimbriatum) old specimen which has released most of it's spores, Buckinghamshire, England, UK, November. Focus Stacked Image