Interested generally in mushroom systematics and mycogeography with particular focus on Boletes. Websites are located at: http://www.nybg.org/bsci/res/col (COLLYBIA s.l.); http://www.nybg.org/bsci/res/hall (MACROFUNGI COSTA RICA); http://sweetgum.nybg.org/boletineae/index.php (BOLETINEAE).