How do "puffballs" grow through pavement.

[Michael L Roginsky]

In <5c45j4$iup at vixen.cso.uiuc.edu> egrunden at prairienet.org (Eric
Grunden) writes: 
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>In a previous article, faganjohns at aol.com (FaganJohns) says:
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>>"Puffballs" can be any of a number of types of fungi.  Unlike plants,
all
>>fungi need is enough dead plant material to eat, and....[snip]
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>.......or living plant material, or dead/living flesh, or chitinous
>substances, or keratin, or symbiotic relationships with algae, or
>cyanobacteria, or living plants, or..... on & on & on...........  ;>
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>--
>			*******************
>The Spirit of Nature, a powerful force,
>	belongs and returns to its creative source.
>- Excerpted from The Collective Works of Johnny Pokerface -

Only true for asphalt. Cement cannot be penetrated by puffballs or
other fungi. In fact, if the ground under asphalt is salted-down prior
to bedding gravel, no fungi can sprout.Cheers....MAD.Micro