Recently (Dec. 2011), I’ve been working on figuring out what content can reasonably be shared with other sites (EOL specifically). In this case, it seems like the genus Boletus is being used as a bit of a catch all for organisms that are probably better described as Boletaceae. In the short term I’ve disabled exporting images that are identified just as “Boletus sp.”. My thought is that these should all be identified as “Boletaceae”.