Identify this mushroom for me please!!!

[Todd A. Guillory]

Hi, I took a photograph of a pretty common mushroom that grows in cow
trails in east Texas.  I'd apprecaite knowing the species name if anyone
can tell me.  A picture can be seen at:

http://www.io.com/~tag/photo/album1.html

Thanks!

-- 
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*Todd A. Guillory                       *                                *
*Dept. of Pediatrics Hematology/Oncology*(409)772-6777                   *
*The University of Texas Medical Branch *todd.guillory at utmb.edu          *
*301 University Blvd.                   *http://www.io.com/~tag/         *
*Galveston, Texas 77555-0361            *                                *
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