lycoperdon

from WordNet (r) 3.0 (2006)

Lycoperdon
    n 1: genus of fungi whose fruiting body tapers toward a base
         consisting of spongy mycelium [syn: {Lycoperdon}, {genus
         Lycoperdon}]

from The Collaborative International Dictionary of English v.0.48

Lycoperdon \Ly`co*per"don\, prop. n. [NL., from Gr. ? wolf + ?
   to break wind.] (Bot.)
   A genus of fungi, remarkable for the great quantity of
   spores, forming a fine dust, which is thrown out like smoke
   when the plant is compressed or burst; puffball.
   [1913 Webster] Lycopersicon