How to find the bogmoss, Sphagnum imbricatum s.l., in South Tyrol, Italy: Microscopically examine the Iceman's colon contents

A very small fragment of a branch leaf of Sphagnum imbricatum sensu lato has been recovered from a sample of food residue taken from the Tyrolean Iceman's colon. On grounds of present phytogeography, the fragment is probably S. affine rather than S. austinii. Neither of these species is known to grow in South Tyrol at present. No matter how it was that the Iceman came into contact with the species, the place this happened was most likely to have been somewhere in the valley bottom of Vinschgau at less than 1,500 m above sea level.