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nounany fungus of the family Geastraceae; in form suggesting a puffball whose outer peridium splits into the shape of a startype of:
Definition that contains earthstar
- geastrum coronatum an earthstar with a bluish spore sac and a purplish brown gleba; at maturity the outer layer splits into rays that bend backward and elevate the spore sac
- astreus pteridis the largest earthstar; the fruiting body can measure 15 cm across when the rays are expanded
- lycoperdales small order of basidiomycetous fungi having fleshy often globose fruiting bodies; includes puffballs and earthstars
- family geastraceae a family of earthstar fungi belonging to the order Lycoperdales
- order lycoperdales small order of basidiomycetous fungi having fleshy often globose fruiting bodies; includes puffballs and earthstars
- geastraceae a family of earthstar fungi belonging to the order Lycoperdales
- radiigera fuscogleba a fungus similar to an earthstar except that it does not open up; the spore mass is brown at maturity with a column of sterile tissue extending up into it
- astreus hygrometricus a common species of earthstar widely distributed in sandy soil; the gleba is a pale tan