earth ball
noun
1- a fungus that forms a leathery yellowish-brown warty sphere which ruptures when mature to release the spores, growing typically on acid sandy soil in both Eurasia and North America硬皮马勃。
1.1
- Genus Scleroderma, family Sclerodermataceae, class Gasteromycetes: several species, in particular S. citrinum.硬皮马勃属, 硬皮马勃科, 腹菌纲：数种, 尤指金黄硬皮马勃。