Tim Brennaman sent me samples of these Tuber lyoni from a pecan plantation in Georgia. (See http://interests.caes.uga.edu/...). Tuber lyoni is the newest name for T. texense and Terfezia lyoni, named originally for Lyons, France. This is the first truffle reported in the United States, found on a Mississippi River levee in the 1860's. The name has since been revised to Tuber lyoni. This is perhaps the most dispersed truffle in North and Central America. It has been reported from just north of Mexico City, Mexico in May under oak trees to Quebec, Canada under pecan trees in November/December. It is additionally reported from Georgia under pecan trees, where apparently reaches its largest size; and from American Basswood in Minnesota, where it is small but very abundant. Under the name Tuber rufum var. nitidum, it has been found under Douglas fir in Oregon. It is edible and quite good, having elements of old milk and fresh cornmeal. It combines these elements admirably when added to a corn chowder.