The lichen collection of Henry Imshaug at the Michigan State University herbarium (MSC)

The lichen collection assembled by Dr. Henry Imshaug at the herbarium of Mi chigan State University (msc) is described. It is not only one of the large st in North America, but is notable also for its geographic range, includin g important collections from the Caribbean and several southern hemisphere island groups. Until recently this collection was not readily accessible, b ut it is now fully available to researchers through loans and visits.