1) Fungus genus 2) Genus geastrum 3) Type genus of geastraceae 
Geastrum (orthographical variant Geaster) is a genus of mushroom in the family Geastraceae. Many species are known commonly as earthstars. The name comes from geo meaning earth and aster meaning star. The name refers to the behavior of the outer peridium. At maturity, the outer layer of the fruiting body splits into segments which turn outward cre...
(from the article `Lycoperdaceae`) Another genus is Geastrum (Geaster), consisting of about 50 widespread species of earthstars with an expanded starlike base. They are found among ...
[n] - type genus of Geastraceae